Loading...
HomeMy WebLinkAbout61 of 1981 - Amending regulations and standards for site development in Salt Lake City; amending appendix Chapter SALT LAKE CITY ORDINANCE BILL NO. 61 of 1981 Site Development Regulations AN ORDINANCE AMENDING THE REGULATIONS AND STANDARDS APPLICABLE TO SITE DEVELOPMENT WITHIN SALT LAKE CITY, UTAH: BY AMENDING APPENDIX CHAPTER 70 OF THE UNIFORM BUILDING CODE ADOPTED BY SECTION 5-7-2 BY DELETING ITS TEXT AND BY ADDING SECTION 5-7-11 AND INCORPORATING THE PROVISIONS OF SAID CHAPTER 70 WITHIN AMENDED CHAPTERS 1-7 OF TITLE 47 RELATING TO SITE DEVELOPMENT REGULATIONS; BY DELETING THE TEXT AND SECTIONS OF CHAPTER 7 OF TITLE 42 RELATING TO SUBDIVISION STANDARDS AND INCORPORATING AMENDED PROVISIONS OF SAID CHAPTER 7 WITHIN AMENDED CHAPTERS 1-7 OF SAID TITLE 47; BY REPEALING EXISTING PROVISIONS OF CHAPTERS 1-7 OF TITLE 47 RELATING TO SITE DEVELOPMENT; BY AMENDING SAID TITLE 47 BY ENACTING SECTION 47-1-1 WHICH ADOPTS BY REFERENCE AS CHAPTERS 1-7 OF TITLE 47, CHAPTERS 1-7 OF "SITE DEVELOPMENT REGULATIONS"; AND BY AMENDING SECTIONS 42-3-1, 42-4-1, 42-5-2 AND 42-6-1 RELATING TO A TEMPORARY RESTRICTION PROHIBITING APPLICATION AND REVIEW OF CERTAIN LAND AND SUBDIVISION DEVELOPMENT WITHIN THE "P-I" AND "F-1" DISTRICTS BY DELETING SAID RESTRICTION. WHEREAS, IT IS THE RESPONSIBILITY OF THE CITY TO PROTECT THE GENERAL HEALTH, SAFETY AND WELFARE, AND TO PROMOTE THE CONTINUED ORDERLY GROWTH OF THE CITY" AND WHEREAS, CERTAIN PORTION OF THE EXISTING REGULATIONS, STANDARDS AND SPECIFICATIONS GOVERNING SUBDIVISION AND SITE DEVELOPMENT ACTIVITIES WITHIN THE CITY HAVE BECOME OBSOLETE, AND WHEREAS, IT IS THE OBJECTIVE TO INCORPORATE INTO TITLE 47, STANDARDS APPLICABLE TO VARIOUS TYPES OF SITE DEVELOPMENT PROJECTS FOR A COMPREHENSIVE STATEMENT OF SUCH REGULATIONS TO OBTAIN BETTER DESIGN, REVIEW AND ENFORCEMENT OF THE PROVISIONS; NOW, THEREFORE, be it ordained by the City Council of Salt Lake City, Utah: SECTION 1. That Appendix Chapter 70 of the Uniform Building Code, 1976 Edition, relating to excavation and grading, adopted by reference by Section 5-7-2 of the Revised Ordinances of Salt Lake City, Utah, 1965 as amended, be, and the same having been amended and incorporated within the 1 61 revised text of Title 47 relating to Site Development Regulations adopted by references in Section 4 below, and the same is hereby amended by DELETING Sections 7001-7015, and by ADDING to Chapter 7 of Title 5, a new Section 5-7-11 which shall read as follows: Section 5-7-11. Excavation and Grading. Appendix Chapter 70 of the Uniform Building Code, 1976 Edition, relating to excavation and grading, as adopted by reference in Section 5-7-2 of this Chapter is hereby amended by deleting the text of Sections 7001-7015 and amending by ADDING a cross reference so Appendix Chapter 70 shall read as follows: APPENDIX CHAPTER 70 EXCAVATION AND GRADING Sections 7001-7015. Said sections and their revised text are hereby deleted having been incorporated within the text of Title 47 relating to Site Development Regulations, drawing particular reference to provisions within Chapters 4 and 5 of said Title 47. SECTION 2. That the text and sections of Chapter 7 of Title 42 of the Revised Ordinances of Salt Lake City, Utah, 1965 amended, relating to subdivision standards be, and the same having been amended and incorporated within the body of the text of Chapter 3 of Title 47 relating to Site Development Regulations adopted by reference in Section 4 below, and the same are hereby amended by DELETING Sections 42-7-1 through 42-7-13 and ADDING a cross reference which shall read as follows: CHAPTER 7 SUBDIVISION STANDARDS AND REQUIREMENTS Sections: 42-7-1 through 42-7-13 are hereby deleted. Subdivision standards shall be governed by the applicable provisions of Title 47 relating to Site Development Regulations, and in particular by provisions of Chapter 3 of said Title 47. SECTION 3. That Chapters 1-7 of Title 47 of the Revised Ordinances of Salt Lake City, Utah, 1965 as amended, relating to site development be, and the same having been amended and reincorporated into the proposed provisions of Title 47 as adopted by reference under Section 4 of this 2 ordinance, are hereby amended by REPEALING the existing provisions of said Chapters 1-7 of Title 47. SECTION 4. That Chapters 1-7 of that certain pamphlet entitled "SITE DEVELOPMENT REGULATIONS - Procedures, Standards and Specifications" dated August, 1981 is hereby adopted by Salt Lake City by reference as ordinances, rules and regulations of said city by amendment to Title 47 by ADDING NEW Chapters 1-7 by ENACTING Section 47-1-1 to read as follows: TITLE 47 SITE DEVELOPMENT REGULATIONS Procedures, Standards and Specifications Chapter T. General Provisions Chapter 2. Definitions Chapter 3. Subdivision Standards and Requirements Chapter 4. Land Development Requirements: Building Sites Chapter 5. Independent Site Development Activities Chapter 6. Interpretation, Permit Procedure, Appeals, Grounds for Denial, and Enforcement. Chapter 7. Energy Efficient Design Incentives (Reserved) Chapter 8. Floodplain Regulations CHAPTER I GENERAL PROVISIONS Section 47-1-1. Adoption and Title. That certain pamphlet entitled "SITE DEVELOPMENT REGULATIONS - Procedures, Standards and Specifications' dated August, 1981 including Chapters 1-7 which were specifically prepared in conjunction with this ordinance, is hereby adopted by reference by Salt Lake City as ordinances, rules and regulations of said City to guide all land development activity. Three copies of said pamphlet, hereinafter sometimes referred to as "Regulations" shall be filed for use and examination by the public in the office of the Recorder of Salt Lake City. Hereinafter all references to the various provisions of Chapters 1-7 of said Regulations shall be considered as references to correspondingly numbered sections and chapters of Title 47. Said provisions may be cited and known as the Site Development Regulations of Salt Lake City, Utah. (Sections 47-1-2 et seq to but not including Section 47-7-1 are located in Chapters 1-7 of said Regulations). 3 CHAPTER 8 FLOODPLAIN REGULATIONS * * * SECTION 5. That the last paragraph of Sections 42-3-1, 42-4-1, 42-5-2 and 42-6-1 relating to the issuance of a temporary prohibition on the filing and preparation of preliminary, minor, and/or final subdivision plats or multi-family dwelling projects within the "Preservation" (P-1) or "Foothill" (F-1) zoning districts, be, and said Sections are hereby amended by DELETING the following ending paragraph as it appears in each of said Sections: * * * Notwithstanding the foregoing, no application for a preliminary subdivision conference, preliminary subdivision plat approval, minor subdivision approval or final approval of any subdivision or multi-family unit project such as an apartment, condominium or planned unit development located within the Preservation "P-1" or Foothill Overlay "F-1" Districts of this City shall be accepted, reviewed, acted upon or approved by the Planning Director, Planning Commission, Mayor or other City staff. Said temporary regulation shall not apply to individual building permits in existing approved subdivisions. SECTION 6. The Council of Salt Lake City, determines that it is imperative to the welfare and best interests of the City that said ordinance become effective immediately upon publication. SECTION 7. This ordinance shall be effective as of the date of its first publication. Passed by the City Council of Salt Lake City, Utah this 18th day of August, 1981. CHAIRMAN ATTEST: Kathnyh rshall CITY RECORDER 4 Transmitted to the Mayor on August 18th, 1981, L. WILSON, MAYOR ATTEST: X/PA��i� KathrynP shall CITY RECORDER (SEAL) BILL 61 of 1981 Published September 2, 1981 5 ADN-35, Affidavit of Publication STATE OF UTAH, ss. County of Salt Lake Legal Notices I Shang D. Conaty SALT'LAKE CITY ORDINANCE 'BILL NO.61 of 1WI • Site Dewbptnenr Regulations AN ORDINANCE AMENDING THE REGULATIONS AND �T STANDARDS APPLICABLE TO SITE DEVELOPMENT Bein first dulydeposesand that he is le WITHIN SALT LAKE CITY,UTAH,BY AMENDING APPEN- DIXCHAPTER Ip 0r THE UNIFORM BUILDINGe g DING CODE advertising clerk of the DESERET NEWS,S, a daily ADOPTED BY SECT ON 5-7.2 BY DELETING ITS TEXT AND ADDING SECTION 5.7.11 AND INCORPORATING,THE ['� TT p printedEnglish PROVISIONS OF SAID CHAPTER 10 WITHIN AMENDED (except Sunday) newspaper in the CHAPTERS 1-7 OF TITLE 47 RELATING TO SITE DEVEL- OPMENT REGULATIONS:BY DELETING THE TEXT AND language with general circulation in Utah, and SECTIONS OF CHAPTER 7 OF'TITLE 42 RELATING TO City,STANDARDS AND INCORPORATING published in Salt Lake City, Salt Lake County, in the AMENDED PROVISIONS OF SAID CHAPTER ]WITHIN T� AMENDED CHAPTERS 1-1 OF SAID TITLE 41: BY RE State of Utah. PEALING EXISTING PROVISIONS OF CHAPTERS 1-7 OF TITLE Jr RELATING TO S1TE DEVELOPMENT; BY AMENDING SAID TITLE 42 BY ENACTING SECTION 47.1.1 WHICH ADOPTS BV REEERE Or A5 CHAPTERS 1.1 OF That the legalhereto TITLE dT, CHAPTERS ] O 'SING DEVELOPMENT notice of which a copy is attached hereto 42.4.1, 42,5-2.AN AND BY AMENDINGTING SECTIONS<ARY• RESTRICTION NO HIBI APPLICATIONIRNGAP TO A TEMPORARY PROHIBITING BIVISION AND REVIEW u.OF CERTAIN,L'AND AND SUBDIVISION DEVELOPMENT Pub notice of Bill #61 of 1981 WITH ET RI TI"AND"F•IrrDISTRICTS BY DE LFTING SAID RESTRICTIONS. 70 WROgWTEAgT,THE IT ISTHE'GENERAL HEAL 3(1, SAFETY OF THE CITYN ND TO PROMOTE rt'w D ER- WY 1N E R1.4 OFTC HE CIT 5" D • PORTIONS10E THE EXISTING REGULgqAN'T�4ONS, STANDARDSA (-AND SPECIFICATIONS ACIIVIRTIESG WITHINV THEN CIITY HAVE DEVELOPMENT ACT AND. WHEREAS,IT IS THE OBJECTIVEPPssA TO INCORPORATE INTO TITLE 47,COM VARIOUS TYPPREHENSI OF VETTATEMENTANDARDS �OF 15 PROJECTS REGCABLE OULAOR A TI(INS TO OBTAIN BETTER DESIGN,'REVIEW AND EtIFORCE- MENTUE TILE PROVISIONS NOW.THEREFORE,be it oidelned by the City Council of Salt Lake City,Utah- SECTION I. That Appendix Chapter'70 of the Uniform Building Crde,1916 Eddie.,relating to excavation and grad. y adopted by reference by Section S-0-2 of the Revised Oral- was published in said newspaper on Sept. 2, 1981 minces of Salt Lake City,Utah,1965 as amended,he,and the baying been amended and in atfd within the re- aevised text of Title 47 relation to Site DevelopmentRegulations npled by references in Section 4 below,and ttw s hereby amended by DELETING Sectons 1001-6015.and by ADDING to Chapter 1 of Title 5,a new Section 5-7,II which scroll read as follows. Section 5.1-II.Excavation and Grading Appendix Chapter I; TO of the Uniform Building Conde, 1976 Edition,relating to • exrayation and grading,as adopted by reference in Section 5- - ,,of this Chapter hereby mended by deleting the kW of Sections MI4015 is amending b cross ADDING a refer- ence so Appendix Chapter shah read as follows, APPENDIX CHAPTER 10 EXCAVATION AND GRADING Sections 7001.7015.Said sections and their revised text are hereby deleted having been purger led within the test of. o Title 47 relating o Site Development Regulations,drawing lore me this 29th day of Particular r hence l0 provision.within Chanters 4 and 5 of i ile 47.et SECTION 2.That Ere text and secIons of Chapter]of Ti-, (� '1 tic 42 of the Revised Ordinances of 4Salt 1010,Lake City,Utah,1965 A.D. 19..8,1.. ended,relating to subdivision standards he,and the same having been emended and incorporated wltkm the of Ike text of Chaplet'3 of Title 47 relating to Site development t Rego. 'anon,adopted by reference in Section 4 below,a.the same are h. ended by DELETING Sections 42-7-1 through 13 and d ADDING a cross reference which shall read as fol ♦ /,',' SUBDIVISION STANDARDSlows CHAE AND REQUIREMENTS I',y' . 7 , 0-��/.•-"/--A -2':�y-j'✓ -L_ _.. - sr.ctions 2-]I through 42].13 are hereby do epee, Subdivision standards shall be governed by Ike applicable of Title 41 relating to Site epmentRegula- tions, Notary Public ulna in part-Iowa,.by provisions of Chapter 3 of said Title 47. LI SECTION Srthat Chanters 1-7 of Title V of the Revised f Ordinances of Salt Lake City,Utah,1965 as amended,relating site develonrlIll t be,and the same having been Mined F ap ter r poratfy0 it o e p o sed 4 VI lsions rd Till%m ae aorefUE m r Under CI G t d of this ordinance, e )1 said amended 1.I byeREPE REPEALING the existing Prov1610ns Of said Chapters II.of Title 47. SECTION 4. VEt Chapters R G that certain REGULATIONS-Procedures, ocedurpamphlet nnlled'SITE DEVELOPMENT dated August, 1101 II home,, a entitled and SLaRn lIy rby refer¢ceaos o 1tna Is berth,/ adopted by Salt of Lc etc by r ordinances,rules y a d re laptops 1.stet city by ENACbme.nl e Tine d1 tv ^h, ADDING NEW(.tlaptars I I it.'ENACI ING Section d11.1 10 eat as follows. TITLE 47 SITE DEVELOPMENT REGULATIONS Procedures,Standards and Specifications • Chanter 1,General P100ltiions Chapter 3.Subdivision u v ns ('hapter 3. eve Standards R and Renults. Buts Chapter 4 Land Development 0000irCments'Building Sites Chapter 5.IndependentSite ermitoPrce000Activities n Chapter 6. Genial,ans,Permit Procedure,Appeals, it Chapter for Energy and EnfoEfficient Desint gn Chapter]-Energy Eflicienr OBsign Incentives(Re- - Chapter B.Flea/Wain Reg Ulafions CHAPDER1 GENERAL PROVISIONS Section 47-1-1.Adoption and Title Thhat certaIn pamphlet entitled"SITE DEVELOPMENT ReGULAI IONS.Procedures, Chopards and Specifications"dated August,1981 Including this orditers LI nance.htcn Ws hetet,adere opted by reference by Sa lred in t ref l Cl on w the Lake City as ordinances,riles acre regulations of poi,'City To guide all land development activity Three c sold L chwi 111111 ,herernatter sonietirtres referred to as"Regulations'' SITE DEVELOPMENT REGULATIONS PROCEDURES, STANDARDS AND SPECIFICATIONS (Chapters 1-7 of Title 47, Revised Ordinances of Salt Lake City, Utah, adopted oy reference.) Chapter 1. GENERAL PROVISIONS Chapter 2. DEFINITIONS Chapter 3. SUBDIVISION STANDARDS AND REQUIREMENTS Chapter 4. LAND DEVELOPMENT REQUIREMENTS: BUILDING SITES Chapter 5. INDEPENDENT SITE DEVELOPMENT ACTIVITIES Chapter 6. ADMINISTRATION AND ENFORCEMENT PROVISIONS Chapter 7. ENERGY EFFICIENT DESIGN INCENTIVES (RESERVED) August, 1981 CHAPTER 1 GENERAL PROVISIONS SECTIONS: 47-1-1. Adoption and Title 47-1-2. Authority 47-1-3. Applicability 47-1-4. Purpose 47-1-5. [Adoption of] Identification of Fault Hazard Map 47-1-6. Format SECTION 47-1-1. ADOPTION AND TITLE. That certain pamphlet entitled "SITE DEVELOPMENT REGULATIONS - Procedures, Standards and Specifications" dated August, 1981, including Chapters 1-7 which were specifically prepared in conjunction with this ordinance, is hereby adopted by reference by Salt Lake City as ordinances, rules and regu- lations of said City to guide all land development activity. Three ' copies of said pamphlet, hereinafter sometimes referred to as "Regulations" shall be filed for use and examination by the public in the office of the Recorder of Salt Lake City. Hereinafter all refer- ences to the various provisions of Chapters 1-7 of said Regulations shall be considered as references to correspondingly numbered sections and chapters of Title 47. Said provisions may be cited and known as the Site Development Regulations of Salt Lake City, Utah. SECTION 47-1-2. AUTHORITY. This ordinance is enacted pursuant to Title 10, Utah Code Annotated 1953. This ordinance is further enacted as an element of the Salt Lake City Master Plan. SECTION 47-1-3. APPLICABILITY. The provisions of this ordinance shall apply to all site development within Salt Lake City; however, a permit shall be required only for those types of developments set forth in Sections 47-4-1 and 47-5-1. SECTION 47-1-4. PURPOSE. This ordinance is adopted: to promote public safety and the general public welfare; to protect property against loss from erosion, earth movement, earthquake hazard and 1 flooding; to maintain a superior community environment; to provide for the continued orderly growth of the city; to insure the maximum preservation of the natural scenic character of major portions of the city by establishing minimum standards and requirements relating to land grading, excavations, and fills; and to establish procedures by which these standards and requirements may be enforced. It is intended that this ordinance be administered with the foregoing purposes in mind and specifically to: (1) Insure that the development of each site occurs in a manner harmonious with adjacent lands so as to minimize problems of drainage, erosion, earth movement and similar hazards. (2) Insure that public lands and places, water courses, streets and all other lands in the city are protected from erosion, earth movement or drainage hazards. (3) Insure that the planning, design and construction of all development will be done in a manner which provides maximum safety and human enjoyment, and, except where specifically intended otherwise, makes it as unobtrusive in the natural terrain as possible. (4) Insure, insofar as practicable, the maximum retention of natural vegetation to aid in protection against erosion, earth movement and other hazards and to aid in preservation of the natural scenic qualities of the city. (5) Insure, insofar as Salt Lake City is located in an active seismic zone, that appropriate earthquake hazard mitigation measures are incorporated into the planning and execution of site development. 2 SECTION 47-1-5. IDENTIFICATION OF FAULT HAZARDS. Pending the completion by the Utah Geological and Mineral Survey, hereinafter "UGMS", of a Fault Hazard Map for Salt Lake City, the Planing Director may rely upon the existing information available from UGMS or other publicly or privately prepared geological reports to identify fault hazards. SECTION 47-1-6. FORMAT. This ordinance is designed to establish administrative and enforcement procedures and minimum standards applicable to site development activities according to the following categories: (1) Chapter 3 governs site development associated with subdivision approval process. (2) Chapter 4 governs site development associated with construction of individual buildings under authorized building permitS. (3) Chapter 5 governs site development not requiring approval or permits under sub-paragraph (1) or sub-paragraph (2) above. 3 CHAPTER 2 DEFINITIONS SECTIONS: 47-2-1. Definitions. 47-2-2. As-graded. 47-2-3. Average Slope. 47-2-4. Bedrock. 47-2-5. Bench. 47-2-6. Borrow. 47-2-7. Buildable Area. 47-2-8. Building Official. 47-2-9. Building Permit. 47-2-10. Certify or Certification. 47-2-11. City Engineer. 47-2-12. Civil Engineer. 47-2-13. Civil Engineering. 47-2-14. Compaction. 47-2-15. Cubic Yards. 47-2-16. Cul-De-Sac. 47-2-17. Cut. 47-2-18. Driveway. 47-2-19. Earth Material. 47-2-20. Engineering Geologist. 47-2-21. Erosion. 47-2-22. Excavation. 47-2-23. Existing Grade. 4 47-2-24. Fill. ✓ 47-2-25. Fill Material. 47-2-26. Fuel Break. 47-2-27. Grading. 47-2-28. Level Building Site. 47-2-29. Licensed Architect. 47-2-30. Natural Drainage. 47-2-31. One Street Access. 47-2-32. Parcel. 47-2-33. Percent of Slope. 47-2-34. Permittee. 47-2-35. Person. 47-2-36. Planning Director. 47-2-37. Quarry. 47-2-38. Registered Professional Engineer. 47-2-39. Removal. 47-2-40. Seismic. 47-2-41. Site. 47-2-42. Site Development. 41-2-43. Soils Engineer 47-2-44. Slope Classification Map. 41-2-45. Surcharge. 47-2-46. Testing Laboratory. 47-2-47. Transition Slope. 47-2-48. Vacant. SECTION 47-2-1. DEFINITIONS. For the purposes of this ordinance, certain terms used herein are defined as set forth below: 5 SECTION 47-2-2. AS-GRADED. "As-graded" shall mean the surface conditions existent upon completion of grading. Section 47-2-3. AVERAGE SLOPE. "Average slope" shall be determined by the following formula: AVERAGE SLOPE = .0023 x I x L A Where: .0023 = A factor for the conversion of square feet into acres. I = contour interval (in feet) of a topographical map of the parcel. L = combined length (in feet) of or along all contour lines measured on the parcel. A = parcel area in acres. SECTION 47-2-4. BEDROCK. "Bedrock" shall mean in-place solid rock. SECTION 47-2-5. BENCH. "Bench" shall mean relatively level step excavated into earth material on which fill is to be placed. SECTION 47-2-6. BORROW. "Borrow" shall mean earth material acquired from an off-site location for use in grading on a site. SECTION 47-2-7. BUILDABLE AREA. The "Buildable area" shall be that portion of the platted lot exclusive of the required front, 6 rear, and side yard setbacks, as established by the base zone for the lot, and all designated undevelopable area. SECTION 47-2-8. BUILDING OFFICIAL. "Building Official" shall mean the Director of the Building and Housing Services Department of Salt Lake City. SECTION 47-2-9. BUILDING PERMIT. "Building permit" shall mean a permit issued by Salt Lake City for the construction, erection or alteration of a structure or building. SECTION 47-2-10. CERTIFY OR CERTIFICATION. "Certify or certifi- cation" shall mean that the specific reports, inspections, and tests that are required have been performed by the person or under their supervision, and that the results of such reports, inspections and tests comply with the applicable requirements of this ordinance. SECTION 47-2-11. CITY ENGINEER. "City Engineer" shall mean the City Engineer of Salt Lake City. SECTION 47-2-12. CIVIL ENGINEER. "Civil Engineer" shall mean a professional engineer registered in the State of Utah to practice in the field of civil works. SECTION 47-2-13. CIVIL ENGINEERING. "Civil Engineering" shall mean the application of the knowledge of the forces of nature, principles of mechanics and the properties of materials to the 7 evaluation, design and construction of civil works for the beneficial uses of humankind. SECTION 47-2-14. COMPACTION. "Compaction" shall mean the densi- fication of a fill by mechanical means. SECTION 47-2-15. CUBIC YARDS. "Cubic yards" shall mean the volume of material in an excavation and/or fill. SECTION 47-2-16. CUL-DE-SAC. "A street closed at one end." SECTION 47-2-17. CUT. See "Excavation in Section 47-2-22. SECTION 47-2-18. DRIVEWAY. "Driveway" shall mean a way or route for use by vehicle traffic leading from a parking area or from a house, garage or other structure, to a road or street. SECTION 47-2-19. EARTH MATERIAL. "Earth material" shall mean any rock, natural soil or any combination thereof. SECTION 47-2-20. ENGINEERING GEOLOGIST. "Engineering Geologist" shall mean a graduate in geology or engineering geology of an accredited University, with five or more full years of professional post graduate experience in the application of the geological sciences, of which at least three full years shall be in the field of engineering geology that has required the application of geological data, techniques, and principles to engineeering problems dealing with 8 ground water and naturally occurring rock and soil, for the purpose of assuring that geological factors are recognized and adequately interpreted and presented. SECTION 42-2-21. EROSION. "Erosion" shall mean the wearing away of the ground surface as a result of the movement of wind, water and/or ice. SECTION 42-2-22. EXCAVATION. "Excavation" shall mean any act by which vegetation, earth, sand, gravel, rock or any other similar material is cut into, dug, quarried, uncovered, removed, displaced, relocated or bulldozed, and shall include the conditions resulting therefrom. SECTION 42-2-23. EXISTING GRADE. "Existing grade" shall mean the actual elevation (in relation to mean sea level) of the ground surface before excavation or filling. SECTION 42-2-24. FILL. "Fill" shall mean any earth, sand, gravel, rock or any other material which is deposited, placed, replaced, pushed, dumped, pulled, transported or moved by man to a new location and shall include the conditions resulting therefrom. SECTION 47-2-25. FILL MATERIAL "Fill material" shall mean earth material free from: (1) rock, or similar irreducible material exceeding 12 inches in any dimension; (2) metal; and (3) organic 9 material except that topsoil spread on cut and fill surfaces may incorporate humus for desirable moisture retention properties. SECTION 47-2-26. FUEL BREAK. "Fuel break" shall mean a strategically located strip or block of land, varying in width, on which vegetation has been modified to provide a safer place for fire fighters to work and to help reduce the rate of fire spread. SECTION 47-2-27. GRADING. "Grading" shall mean excavation or fill or any combination thereof and shall include the conditions resulting from any excavation or fill. Section 47-2-28. LEVEL BUILDING SITE. A "Level building site" shall be a site contained wholly within the Buildable Area, of a dimension not less than thirty (30) feet by forty (40) feet, to accommodate the main structure, required off-street parking, and drainage resulting from said improvements. Slope of the Level Building Site shall not exceed sixteen (16) percent. SECTION 47-2-29. LICENSED ARCHITECT. An architect who is registered with the Department of Registration of the State of Utah. SECTION 47-2-30. NATURAL DRAINAGE. "Natural drainage" shall mean water which flows by gravity in channels formed by the surface topography of the earth prior to changes made by the efforts of man. SECTION 47-2-31. ONE STREET ACCESS. "One street access" shall describe a street that provides the sole access to one or more other streets. SECTION 47-2-32. PARCEL. "Parcel" shall mean all contiguous land in one ownerhsip, provided, however, each lot conforming to the zoning ordinances of Salt Lake City in a subdivision may be considered to be a separate parcel. SECTION 47-2-33. PERCENT OF SLOPE. "Percent of slope" shall mean the slope of a designated area of land determined by dividing the horizontal run of the slope into the vertical rise of the same slope and converting the resulting figure into a percentage value. SECTION 47-2-34. PERMITTEE. "Permittee" shall mean any person to whom a site development permit is issued. SECTION 47-2-35. PERSON. "Person" shall mean any person, firm or corporation (public or private), the State of Utah and its agencies or political subdivision, and the United States of America, its agencies and instrumentalities, and any agent, servant, office or employee of any of the foregoing. SECTION 47-2-36. PLANNING DIRECTOR. "Planning Director" shall mean the Planning Director of Salt Lake City. SECTION 47-2-37. QUARRY. "Quarry" shall mean an open excavation used for the extraction of resources. SECTION 47-2-38. REGISTERED PROFESSIONAL ENGINEER. "Registered professional engineer" shall mean a civil engineer who is registered with the Department of Registration of the State of Utah. 11 SECTION 47-2-39. REMOVAL. "Removal" shall mean killing vegetation by spraying, complete extraction or excavation, or cutting vegetation to the ground, trunks, or stumps. SECTION 47-2-40. SEISMIC. "Seismic" shall mean pertaining to, characteristic of, or produced by earthquakes or earth vibration. SECTION 47-2-41. SITE. "Site" shall mean a lot or parcel of land, or a contiguous combination thereof, where grading work is performed as a single unified operation. SECTION 47-2-42. SITE DEVELOPMENT. "Site development" shall mean altering terrain and/or vegetation. SECTION 47-2-43. SLOPE CLASSIFICATION MAP. A map prepared by a registered professional engineer or surveyor, on a contour map, showing at a minimum, those areas with a slope less than ten (10) percent and greater than or equal to forty (40) percent as calculated between every contour interval on said map. SECTION 47-2-44. SOILS ENGINEER. "Soils engineer" shall mean registered civil engineer of the State of Utah, specializing in soil mechanics and foundation engineering, familiar with the application of the principles of soils mechanics in the investigation and analysis of the engineering properties of earth material. 12 SECTION 47-2-45. SURCHARGE. "Surcharge" shall mean the temporary placement of fill material on a site in order to compress or compact the natural soil mass. SECTION 47-2-46. TESTING LABORATORY. " "Testing Laboratory" shall mean a testing laboratory that requires supervisory personnel to be professional engineers registered with the Department of Registration of the State of Utah. SECTION 47-2-47. TRANSITION SLOPE. The "Transition Slope" shall be a slope contained wholly within the Buildable Area used to transition from the grade of the Level Building Site to the natural or engineered finished grade of the yard areas. SECTION 47-2-48. VACANT. "Vacant" shall mean land on which there are no structures or only structures which are secondary to the use or maintenance of the land itself. 13 CHAPTER 3 SUBDIVISION STANDARDS AND REQUIREMENTS SECTIONS: 47-3-1. General Regulations and Standards 47-3-2. Lot Design Standards 47-3-3. Street Design Standards 47-3-4. Grading and Erosion Control Design Standards 47-3-5. Foothill Development Special Regulations 47-3-6. Flood Plain Development Special Regulations 47-3-7. Canyon Development Special Regulations 47-3-8. Non-Residential Subdivision Special Regulations 47-3-9. Inspections and Enforcement SECTION 47-3-1. GENERAL REGULATIONS AND STANDARDS. Except where modified by the Mayor, all subdivisions of land within Salt Lake City shall comply and conform with the standards and requirements as set forth and as referred to in this chapter, as follows: 1. Supervision. All site development and/or sudivision work performed under this chapter will be allowed only when said work is performed under the supervision of the City Engineer or Public Utilities Director as is appropriate under the approved subdivision plan, and said work is secured by a performance guarantee bond acceptable to the City Attorney and Mayor. 2. Hazardous Areas to be Fenced. All areas of the subdivision or features adjacent to the subdivision, which present a potential threat to the public safety shall be fenced with a six (6) foot 14 non-climbable fence or acceptable alternative, as required by the Planning Commission. Such hazardous areas may include, but are not limited to, rivers and streams, canals, cliffs, ravines, arterial or collector streets, railroad rights-of-way, and steep slopes. Said fence shall be constructed and included as part of the subdivision improvements and shall be bonded. 3. Buildable Lots. All subdivisions shall result in the creation of lots which are developable and capable of being built upon. No subdivision shall create lots, and no building permit shall be issued for any lots which would make improvements and services impractical due to size, shape, steepness of terrain, location of water courses, problems of sewerage or driveway grades, or other physical conditions. 4. Access to Public Streets. (a) All lots or parcels created by the subdivision of land shall have access to a public street improved to standards hereinafter required. Private streets shall not be permitted unless the Planning Commission finds that the most logical development of the land requires that lots be created which are served by a private street or other means of access, and makes such findings in writing with the reasons therefor. (b) As part of the application of any subdivision including private streets, the subdivider shall submit to the Planning Commission for review by the City Engineer the following street plans: (1) A street development plan showing: (i) the alignment, width, grades design, and material specifications; 15 (ii) the topography and means of access to each lot; (iii) drainage; (iv) utility easement for servicing the lots served by such private street. (2) A plan providing for future ownership and maintenance of said street together with payment of taxes and other liability thereon. After review and favorable recommendation by the City Engineer, the Planning Commission may include such approved street plans as part of its recommendations to the Mayor. Construction of the private street or access shall be completed prior to occupancy of any buildings on lots served by a private street. However, if finished grading has been completed and stabilized to the City Engineer's satisfaction, the subdivider may post a cash bond equal to the cost of completing the street, as determined by the City Engineer, in a form approved by the City Attorney to assure the earliest possible completion of said streets. The bond may be posted if and only if the street is stabilized and made passable until such time as the completion of the street can be accomplished. 5. Landscaping. (a) A landscaped area shall be required in all subdivisions. Said landscaping shall be located either within the non-paved portion of the street right-of-way, or within a dedicated landscaping easement, not less than five (5) feet wide, adjacent to the street. The location of the landscaping shall be specified by the Planning Commission. The type of landscaping and street trees shall 16 be selected, installed and maintained in accordance with standard specifications, prepared by Salt Lake City. (b) Whenever, in the opinion of the Planning Commission, the cuts and fills are of sufficient size or visibility to demand special treatment, the subdivider shall be required to landscape such areas with suitable permanent plant materials and to provide for their maintenance according to a plan as outlined in Section 47-3-5(4) and • approved by the Parks Department. (c) The subdivision shall be so designed as to preserve the greatest amount of existing on-site vegetation, including trees with a trunk diameter of four (4) inches or greater and other natural ground cover. 6. Utilities and Easements. (a) All utilities shall be provided through underground services. (b) Easements for utility and drainage purposes shall be provided within the subdivision as required by the Planning Commission. However, in no event, shall such easement be less than seven (7) feet in width or five (5) feet in width on the front lot line. 7. Water Courses. The subdivider shall dedicate a right-of-way for storm drainage conforming substantially with the lines of any natural water course or channel, stream, creek or flood plain that enters or traverses the subdivision. 8. Block Design. (a) Blocks shall normally have sufficient width for an ultimate layout of two tiers of lots of the size required by the provisions of the zoning and subdivision ordinances of Salt Lake City. 77 (b) However, blocks shall not exeed fifteen hundred (1,500) feet in length. In any block, over nine hundred (900) feet in length, there shall be a crosswalk or pedestrian way as required by the Planning Commission. 9. Neighborhood Facilities. (a) The subdivider shall reserve sites, appropriate in area and location, for necessary and desirable residential facilities, such as schools, parks and playgrounds. Such sites shall be located in accordance with the principles and standards contained herein or expressed in Salt Lake City master plan or any community master plan. (b) The delimiting of service areas to determine the need for residential facilities at the district or community level shall be based on the Salt Lake City master plan or any community master plan. When a planning neighborbood is used it will provide the basis for estimating the number of families to be served by facilities at the local level. A planning neighborhood insofar as possible exhibits the following characteristics: (1) It is bounded, rather than bisected, by major thoroughfares or other substantial land use, or natural barriers to pedestrian traffic. (2) It is usually not over a mile in width in any direction. (3) It contains a minimum of five hundred (500) families. (c) The following principles and standards are intended to serve as a guide in determining the residential facilities within the planning neighborhood for which sites normally will be required. The School Board shall be notified of all proposed facilities. 18 (1) An elementary school site of approximately ten (10) acres will be required for each six hundred (600) families in the neighborhood. Such school site shall be central to the population to be served and shall not front on an arterial street. (2) Such school site shall be reserved for public purchase for two (2) years at a price not to exceed the acreage value of the raw land in the subdivision, except for a depth along the street forming principle frontage for the site of one tier of lots which may be priced not to exceed the value of said tier of lots. (3) Whenever possible, playground and neighborhood recreation areas shall be developed in conjunction with elementary school sites. Such a site, if required in a subdivision, shall not normally be less than five (5) acres in area for a service orientation of six hundred (600) families or less, and such sites shall specifi- cally include areas with natural advantages for park development. It shall be reserved, made available for purchase and priced in accordance with (2) above. (4) Where wooded ravines and/or natural waterways are included within the boundaries of subdivision, such ravines shall be reserved for public use, including recreation and the disposal of storm waters. These purposes may be accomplished through dedication and/or storm drainage, scenic or open space easements. 10. Reservation of Land for Park and Recreation Purposes. (a) Pursuant to the recreation or park elements, plans or standards set forth in the Master Plan or community master plan, as a condition of final subdivision approval the subdivider shall be 19 required to reserve land for park and recreation purposes according to the following standards: (1) for subdivision of one hundred (100) lots or more, including contiguous land owned or controlled by subdivider or landowner, the subdivider shall reserve land for two (2) years for public purchase at the rate of not less than one and one-half (1 1/2) acres of land per one hundred (100) lots in the subdivision or five (5) percent of the total area in the subdivision, whichever is greater. (2) For subdivisions containing between fifty (50) and one hundred (100) lots, the subdivider shall reserve land as deemed desirable by the Planning Commission. (3) For proposed multi-family developments, the number of dwelling units proposed shall be considered as the number of lots for the requirements specified in this section, or if no particular number of dwelling units is proposed the requirements shall be based on the number of dwelling units per acre permitted in the zoning regulations which apply to the land to be subdivided. (4) All land to be reserved for park or recreational purposes shall be found to be suitable by the Planning Commission and the Parks Department as to location, parcel size and topography for the park and recreation purposes for which it is indicated in the Salt Lake Master Plan or any community master plan or as determined by the Planning Commission. Such purposes may include active recreation facilities such as playgrounds, playfields, pedestrian or bicycle paths or open space areas of particular natural beauty, including canyons, hilltops and wooded areas to be developed or left in their natural state. 20 (5) Land to be reserved may include all of the proposed park or recreational facility, or may include only part of a facility. Such partial reservation may be supplemented by additional land on adjoining property not owned or controlled by the subdivider. (b) At the time of approval of the final subdivision plat, the City may specify when development of a park or recreation facility is scheduled to begin. (c) The provisions of this section shall not normally apply to commercial or industrial subdivisions. However, the Planning Commission may require as a condition of approval, that a commercial or industrial subdivider dedicate that portion of a stream bed or drainage channel falling within an industrial subdivision when such portion forms part of an open space network designated in the master plan or a community master plan as an alternative to the normally required easements. SECTION 47-3-2. LOT DESIGN STANDARDS. The size, shape and orientation of lots in a subdivision shall be appropriate to the location of the proposed subdivision and to the type of development contemplated. The following principles and standards shall be observed: 1. Minimum Area - Size. The minimum area and dimensions of all lots shall conform to the requirements of the zoning ordinances of Salt Lake City for the district in which the subdivision is located, but in no case, will any lot consist of less than six thousand (6,000) square feet of area. However, in subdivisions where proposed lots have an average slope of 21 10 percent or greater, the minimum lot area for said lots shall be increased if necessary in order to meet the following lot grading criteria: (a) Each individual lot shall be of dimensions to accommodate a Level Building Site as defined in Section 47-2-7 with minimum dimensions of forty (40) feet by thirty (30) feet that does not encroach upon the minimum front yard, rear yard and sideyards required by the zoning ordinance. (b) The Buildable Area shall not include any of the required yard areas. (c) A transition slope area of varying dimensions shall be provided within the Buildable Area from the grade of the Level Building Site to the grade of the natural or engineered finished grade of the required yard areas. Said transition slope area shall be at a slope no greater than the maximum slope which the soil will support as certified by the soils and geologic report. (d) Slopes of required yard areas may only be altered as provided in Title 51. However, the front yard natural or engineered slope may be altered to the extent necessary to provide vehicle access at a maximum of 16 percent slope from the property line. (e) The developer shall submit to the Planning Commission a lot size calculation map showing in sufficient detail all necessary information to justify all lot boundaries, and shall be signed and certified by a licensed civil engineer or land surveyor. 2. Side lot lines. The sidelines of all lots, so far as possible, shall be designed to be at right angles to the street which the lot faces, or approximately radial to the center of curvatures, if 22 such street is curved. Sidelines of lots shall be designed to be approximately radial to the center of curvature of a cul-de-sac on which the lot faces. 3. Width. No lot shall have a width less than fifty (50) feet at the front building setback line, or thirty (30) feet at the curb line. Additionally, said width must accommodate proposed Level Building Site and required yard areas. Lots with Average Slopes of fifteen (15) percent or greater shall have a minimum width of one hundred (100) feet at the front building setback line or sixty (60) feet at the curb line. 4. Corner Lots. Corner lots have more than one side which must maintain required front yard setbacks, and therefore shall be platted wider than interior lots in order to permit conformance with the required street setback requirements of the zoning ordinance. 5. Depth. No lot shall have a depth of less than one hundred (100) feet, unless the area conforms with the zoning ordinances of Salt Lake City and a lesser depth is specifically approved by the Planning Commission. 6. Corporate Boundaries. No lot shall be divided by a corporate boundary line. Each such boundary line shall be made a lot line. 7. Remnants. No remnants of property shall be left in the subdivision which do not conform to lot requirements or are not required or more suitable for designation as common open space, private utility or public purpose. 8. Lot Numbers. Lot numbers shall begin with the number "1" and shall continue consecutively through the subdivision plat, with no omissions or duplications; no block designations shall be used. 23 9. Double Frontage Lots. Lots other than corner lots, having double frontage shall not be approved except where necessitated by topographic or other unusual conditions. The width of each block shall be sufficient for an ultimate layout of two tiers of lots of a size required by the provisions of this ordinance unless the general layout of the vicinity, lines of ownership, topographical conditions or locations of arterial streets or freeways justify or make necessary a variation from this requirement. 10. Flag Lots. Flag lots generally shall not be permitted. In the event the Planning Commission finds that due to unusual topographic conditions, direct lot frontage on a street is precluded, the Planning Commission may recommend waiver of the minimum width requirement on an individual lot basis. In such case the access strip shall be not less than twenty (20) feet in width and shall not exceed the depth of adjoining lots. In calculating the lot area of a flag lot, the square footage included in the access strip shall not be counted. 11. Developable Area Limitation. The Planning Commission shall review each lot and may determine that certain areas within a proposed subdivision cannot be built upon, fenced and/or landscaped more extensively than its natural state. The Planning Commission shall require all such undevelopable portions of proposed lots or any other special conditions of said lots to be identified by shading and notation upon the final plat. Such limitation shall also be made a part of the subdivision restrictive covenants. This provision may be invoked to protect, among other things, natural slopes or vegetation, special natural topographic features, faults, or visual factors. 24 SECTION 47-3-3. STREET DESIGN STANDARDS. The following minimum standards and design criteria shall apply unless deemed unwarranted by written recommendation of the City Engineer and the Traffic Engineer. Said standards and criteria shall be supplemented by other applicable existing engineering and construction requirements and standards as specified by City Engineer. I. General. (a) The subdivision design shall conform to the pattern of major streets as designated in the Salt Lake City master plan, and where applicable, any community master plan, and to any official street map right-of-way approved by the City Council. Whenever a subdivision fronts on a street so designated, that street shall be platted and dedicated by the subdivider in the location and width so indicated. (b) Where higher standards have not been established as specified in subsection (1) of this section, all streets and arterials shall be platted according to the following minimum widths, except where it can be shown by the subdivider, to the satisfaction of the Planning Commission, that the topography or the small number of lots served and the probable future traffic development are such as to unquestionably justify a lesser standard. A community master plan or planned unit development, if designated with a comprehensive circulation and parking system including separate pedestrian ways, may justify modification of standards. Higher standards may be required where streets are to serve commercial or industrial property or where warranted by probable traffic conditions. 25 Type of Street Right-Of-Way(ft) Pavement (ft)* Major Street As shown in Salt Lake City Master plan Industrial Street 60 44 Business streets, Residential Collector Streets or One Access 50 40 Street Local Street where zoned 50 36 for Multi-Family Local Streets where zoned 50 30 for Single-Family Frontage Road 40 24 (developed one side only) Private streets As determined by Planning and alleys Commission *Pavement width is from face to face of curbing 26 (c) The street pattern in the subdivision shall be in general conformity with a plan for the most advantageous development of adjoining areas and the entire neighborhood or district. The following principles shall be observed: (1) Where appropriate to the design and terrain, proposed streets shall be continuous and in alignment with existing planned or platted streets, or if offset, streets shall be offset a minimum of one hundred (100) feet between center lines of intersecting residential streets and a minimum of four hundred (400) feet between center lines of intersecting major streets. (2) Proposed streets shall be extended to the boundary lines of the land to be subdivided or proposed as part of a subdivision master plan, unless prevented by topography or other physical conditions, or unless, in the opinion of the Planning Commission, such extension is not desirable for the coordination of the subdivision with the existing layout or the most advantageous future development of adjacent tracts. (3) Where streets extend to the boundary of the property, resulting dead end streets may be approved with a temporary turn-around of a minimum forty (40) foot radius. In all other cases, a permanent turn-around shall conform to specifications in paragraph (j) below or have a design otherwise approved by the Traffic Engineer. (4) Proposed streets shall intersect one another as nearly at right angles as topography and other limiting factors of good design permit. "T" intersections rather than "cross" intersections shall be used wherever possible for local streets. 27 (5) Straight local residential streets, conducive to high speed traffic, longer than the standard six hundred sixty (660) foot block, shall be prohibited unless approved by the Planning Commission. (6) Alleys shall not normally be permitted in residential subdivisions, but may be permitted in non-residential subdivision. (d) Subdivisions adjacent to arterials shall be designed as specified in the Salt Lake City master plan, or a community master plan, or by the Planning Commission. The following principles and standards shall be observed. (1) Street design shall have the purpose of making adjacent lots, if for residential use, desirable for such use by cushioning the impact of heavy traffic and of minimizing the interference with traffic on arterials. (2) The number of intersecting streets along arterials shall be held to a minimum. (3) Frontage roads, if required or existing, shall conform to the standards specified in the subsection titled, "Minimum Standards" and shall be separated from the arterial or freeway by a strip of permanent landscaping not less than ten (10) feet in width. A landscaping plan for the strip shall be sumbitted for approval. Frontage roads shall enter arterials by means of intersections designed with turning and stacking capacity adequate for the traffic volume as estimated by the Traffic Engineer. (4) Where frontage roads are not required, residential lots adjacent to an arterial shall be served by: (a) A minor residential street paralleling said arterial at a generous lot depth therefrom. The minor residential street shall be 28 separated from the arterial by a strip of permanent landscaping parallel to the arterial right-of-way not less than ten (10) feet in width. Greater widths may be appropriate and required by the Traffic Engineer; or (b) A series of cul-de-sac or loop streets extending towards said arterial from a collector street not more than five hundred (500) feet therefrom. In such cases, a wall or fence with masonry pillars of a design approved by the Planning Director may be required at the rear of properties adjacent to the arterials. (5) When the rear of any lot borders an arterial, the subdivider may be required to execute and deliver to the City an instrument, deemed sufficient by the City Attorney, prohibiting the right of ingress and egress from said arterial to said lot, and a legal document sufficient to guarantee maintenance of said landscaping. (e) Grades, curves and sight distances shall be subject to approval by the City Engineer, to insure proper drainage and safety for vehicles and pedestrians. The following principles and minimum standard shall be observed. (1) Grades of streets shall be not less than five-tenths (0.5) percent and not greater than twelve (12) percent. However, a short run of not more than two hundred (200) feet of up to fourteen (14) percent may be allowed by the Planning Commission, upon the favorable recommendation of the Traffic Engineer and the City Engineer. Grades shall be controlled at center line, curb and gutter line, and sidewalk line. (2) At street intersections, the lot line at each corner shall be rounded with a curve havingga radius of not less than ten (10) feet. A greater curve radius may be required if streets intersect at other than right angles, or in particular cases at intersections with arterials. (f) Vertical Curves at non-intersecting curves and crests. Transition curves over crests of hills shall be designed to provide both a smooth transition from upward to downward movement to minimize potential roller-coaster effect and to provide safe stopping sight distance at all times. The stopping sight distance is the distance required to safely stop a vehicle after viewing an object, calculated upon a formula set forth in standards adopted by the Traffic Engineer. The height of the eye shall be set at 3.75 feet and the height of the object at .5 feet above the surface of the road. Local streets shall be designed for a 30 mph minimum design speed providing for a minimum K value for stopping sight distance for crest curves of 28 and 35 for sag curves. Collector streets shall be designed for 40 mph minimum design speed with a minimum K value for stopping sight distance for both crest curves and sag curves of 55. (g) Vertical curves and approaches at intersections. Transition curves shall be required to provide a smooth transition from the road grade to intersections. For an approach distance ("A") from each edge of the intersecting street line, the grade may not exceed 2 percent. The minimum length of the approaches ("A") and transition curves ("L") shall be calculated upon the formulas below. A = The minimum approach distance required where grade may not exceed 2 percent from the curb line of the intersecting street. Said distance of A shall be no less than thirty-five (35) feet for intersections 30 with local streets, and no less than one hundred (100) feet for intersections with major or arterial streets. ' L = The minimum transition curve length required between points of tangency ("X") where L = 10(a), (ar being the difference between the grades of the road less the grade of A. 2% Maximum Grade Approach Distance 2% Maximum Grade Approach Distance f1 X // X ('L�--��Hi_ Xrx Road Grade Z2% MaximumIntersecting L* A** Street L* 1:14 *Minimum L = 10a = 10(12-2) = 100 **100' minimum on approach to a major or arterial street Road Grade 12% Maximum (h) Intersection Sight Distance. Intersections shall be planned and located to provide as much sight distance as possible. In achieving a safe road design, as a minimum, there shall be sufficient corner sight distance for the driver on the approach roadway to cross the intersecting street without requiring approaching traffic to reduce speed. Such corner sight distance or "CSD" is a field of vision which shall be measured from a point on the approach roadway at least 15 feet from the edge of the intersecting roadway pavement at a height of eye at 3.75 feet on the approach roadway. The minimum corner sight distance for local streets (30 mph design speed) shall be 300 feet. For collector streets (40 mph design speed) the minimum corner sight distance shall be 400 feet. (i) Horizontal Alignment. In addition to the specific street 31 design standards set forth above, horizontal alignment shall be subject to the following criteria: (1 ) Consistent with topography, alignments shall be as straight as possible. (2) Maximum curvatures shall be avoided whenever possible. (3) Consistent patterns of alignment shall be sought. Sharp curves at the end of long tangents or at the end of long flat curves shall be avoided. (4) Short lengths of curves shall be avoided even for very small deflection angles. (5) Flat curvatures shall be provided on long fills. (6) Compound circular curves with large differences in radii shall be avoided. (7) Direct reverse curves shall be avoided; a tangent length shall be used between them. (8) "Broken-back Curves" (two curves in the same direction on either side of a short tangent or large radius curve) shall be avoided. (9) To affectuate the above general criteria, the minimum curve centerline radii for local streets (using a 30 mph design speed) and for collector street (using a 40 mph design speed), shall be 150 feet and 300 feet respectively. The maximum allowable degree of curvature shall be 23 degrees for local streets and 12.5 degrees for collector streets. 32 (j) Turn-Around. Cul-de-sacs in residential areas should be no longer than 400 feet (measured from centerline of intersecting street to radius point of turn around) and shall have a minimum of 42 feet curb radius and fifty (50) feet property line radius. Cul-de- sacs in commercial or industrial areas should be no longer than 650 feet and should have a minimum of a 60 foot curb radius. and 70 foot property line radius. Other cul-de-sac lengths or turn around configurations may be approved by the Traffic Engineer upon his favorable recommendation that the alternative provides equal or better convenience, access and service. (k) Street Lighting. Street lighting provides for the safety, security and convenience of the public. It is less expensive to install and provides less disruption if it is installed during the construction of the subdivision. Therefore, all new subdivisions shall be required to install all street lighting systems during construction as part of the bonded subdivision public improvements. The system shall be underground in conduit. Ornamental poles shall be used in all subdivisions. The design of the entire system including conduit, wiring, pole locations and type, and fixture size and type shall be submitted on subdivision plan sheets. Lighting shall meet the Traffic Engineer's minimum recommended standards for the type of subdivision planned. As a minimum, lighting shall be placed at mid-block and at each intersection on local streets. The Traffic Engineer shall approve street lighting plans. (1) Driveways. Driveways leaving a public right-of-way should not exceed a maximum slope of 8 percent from gutter to property line. The slope should be transitioned beyond property line no more 33 than a maximum of 16 percent. ° Maximum sight distance should be encouraged with blind entrances or other sight obstructions disallowed. (m) The following principles and standards shall apply to the design and installation of curbs, gutters, sidewalks and pedestrian ways: (1 ) Vertical curbs and gutters as shown on Salt Lake City's standard detail drawings shall be required in all subdivisions except for the exceptions specified below. (2) Sidewalks shall be required on both sides of the street in any subdivision. (3) The Planning Commission may recommend that sidewalks be omitted in a subdivision, planned community or planned unit development having an internal pedestrian system, provided that the Planning Commission shall find that the public safety is not jeopardized by such omission. (4) When required for access to schools, playgrounds, shopping centers, transportation facilities, other community facilities or for unusually long blocks, the subdivider shall provide, construct and maintain pedestrian ways not less than twenty (20) feet in width, provided with fencing, landscaping and a pavement not less than ten (10) feet in width. Provision for maintenance shall be satisfactory to the Planning Commission. (5) Sidewalks shall normally be located within the street right-of-way as shown on the Salt Lake City's standard detail drawings. 34 (6) For lots and public strips containing trees with a trunk diameter of four (4) inches or greater, curb cuts for driveways shall be so located as to ensure the preservation of such trees. (n) Where subdivision streets create frontage for contiguous property owned by others, the subdivider may, upon approval of the Planning Commission, create a protection strip lot not less than one (1) foot in width between said street and adjacent property, to be deeded into joint ownership between the City and subdivider. Such a lot requires an agreement from the subdivider contracting to deed to the owners of the contiguous property the one (1) foot or larger protection strip lot for a consideration named in the agreement (such consideration to be not more than the cost of street improvements properly charged to the contiguous property as determined by the City Engineer in his estimate of cost of improvements for the subdivision.) One copy of this agreement shall be submitted as approved by the City Attorney to the Planning Commission prior to the approval of the final plat. Jointly owned protection strip lots shall not be permitted at the end of or within the boundaries of a public street or proposed street or within an area or abutting an area intended for future public use. (o) Whenever a proposed subdivision has a street which terminates or abuts against private property of an individual other than the subdivider, a strip of land at least one (1) foot wide across the entire end of the proposed street must be platted as a lot and said lot shall be deeded to Salt Lake City for future street purposes. The deed, approved by the City Attorney, must be sumbitted prior to final approval. 35 (p) Traffic Report. New subdivisions have traffic impacts on existing street systems that may or may not be adverse in nature. The City may require the developer and/or subdivider to provide a detailed traffic engineering report of the effect and impacts of the proposed development. This report shall detail the expected number of trips to be generated, the type of vehicles expected and the times of day that the most severe impact can be expected. It shall also detail the effect on street capacity by the development, as well as nearby intersections that will be impacted by the development's traffic as may be designated by the Traffic Engineer. SECTION 47-3-4. GRADING AND EROSION CONTROL DESIGN STANDARDS AND REGULATIONS. All subdivision improvement work shall be accomplished in conformance to the following grading and erosion control design standards and regulations: 1. Hours of Operation. All grading operations in or contiguous to residential neighborhoods shall be carried on between the hours of 7:00 a.m. to 5:30 p.m. The City Engineer may waive this requirement if it is shown that by restricting the hours of operation it would unduly interfere with the development of the property and it is shown that the neighboring properties would not be adversely affected. 2. Dust and Dirt Control. All graded surfaces of any nature shall be dampened or suitably contained to prevent dust or spillage on City streets or adjacent properties. Equipment, materials and roadways on the site shall be used or treated so as to cause the least possible annoyance due to dirt, mud, or dust conditions. 3. Undevelopable Slopes. Any natural slopes identified on a Slope Classification Map of forty (40) percent or greater shall be 36 designated undevelopable area. Said slope, if retained within the subdivision shall be designated and maintained as common area. In no event shall streets traverse such slopes. 4. Finished Cuts and Slopes. Limitations shall be applied to the extent of cut and fill slopes to minimize the amount of excavated surface or ground area exposed to potential erosion or settlement. (a) The exposed or finished cuts or slopes of any fill or excavation shall be smoothly graded. (b) All cut and fill slopes shall be recontoured and revegetated by the subdivider in accordance with an approved plan. (c) Cut or fill slopes shall normally be limited to fifteen (15) feet in vertical height. However, upon review and favorable recommendation of the City Engineer, the Planning Commission may recommend that the Mayor approve cut or fill slopes exceeding fifteen (15) feet provided that such variations be allowed on a limited basis after thorough review of each request, and only when balanced by offsetting improvements to the overall aesthetic, environmental and engineering quality of the development. (d) No excavation creating a cut face and no fill creating an exposed surface shall have a slope ratio exceeding one and one-half horizontal to one vertical. EXCEPTION: (1) No slopes shall cut steeper than the bedding plane, fracture, fault or joint in any formation where the cut slope will lie on the dip of the strike line of the fracture, bedding plane, fault or joint. 37 (2) No slopes shall be cut in an existing landslide, mud flow or other form of naturally unstable slope except as recommended by a qualified geological engineer. (3) Where the formation is exposed above the top of the cut which will permit the entry of water along bedding planes, this area shall be sealed with a compacted soil blanket having a minimum thickness of two feet. The soil for this blanket shall be relatively impervious and shall be approved by the soils engineer or engineering geologist. (4) If the material of a slope is of such composition and character as to be unstable under the anticipated maximum moisture contents, the slope angle shall be reduced to a stable value or retained by a method approved by the City Engineer, and certified as to its stability by the soils engineer or geologist. Said retaining method shall include design provisions which are: (i) Conducive to revegetation for soil stability and visual impact. (ii) Used for selected areas of the site and not as a general application. (iii) Limited to tiers each of which is no higher than six (6) feet, separated by plantable terraces a minimum of two feet in width. (iv) Any retaining system shall remain and be maintained on the lots until plans for construction are approved and a building permit is issued. The plans shall include provisions to integrate driveway access to the lot, while maintaining the structural integrity of the retaining system. 38 (e) The City Engineer may require the slope of a cut or fill be made more level if at any time it is found that the material being cut or the fill is unusually subject to erosion, static or dynamic instability or if other conditions make such requirements necessary for stability. 5. Abatement of Hazardous Conditions. (a) If, at any stage of grading, the Planning Director or City Engineer determines by inspection that the nature of the formation is such that further work as authorized by an existing permit is likely to imperil any property, public way, watercourse or drainage structure, the Planning Director or City Engineer shall require, as a condition to allowing the work to proceed, that reasonable safety precautions be taken as are considered advisable to avoid likelihood of such peril. Such precautions may include, but shall not be limited to any of the following: specification of a more level exposed slope: construction of additional drainage facilities, berms, or terraces; compaction or cribbing; installation of plant materials for erosion control; and reports of a registered soils engineer and/or of an engineering geologist whose recommendations may be made requirements for further work. Such a requirement by the Planning Director or City Engineer shall constitute a required change order in the work to be performed under permit. Said changes may be required to be reflected in amended plans. (b) Where it appears that damage from storm drainage may result from work performed hereunder, such work may be stopped and the permittee required to take such measures as may be necessary to protect adjoining property or the public safety. On large operations or where unusual site conditions exist, the Planning Director or City 39 Engineer may specify the time at which grading may proceed and the time of completion or may require that the operation be conducted in specific stages so as to insure completion of protective measures or devices prior to the advent of seasonal rains. 6. Fill Material and Compaction. (a) Fill Material. All fill shall be earth, rock or other inert materials free from organic material and free of metal, except that topsoil spread on cut and fill surfaces may incorporate humus for desirable moisture retention properties. Fill not meeting the definition above shall be placed only on approved public or private landfills or other approved deposit sites. (b) Back Fillings. Any pipe trench or trenching, or excavation made in any slope of any excavated or filled site, shall be backfilled and compacted to the level of the surrounding grade. (c) Compaction of Fills. Unless otherwise directed by the City Engineer, all fills governed by this ordinance, intended to support buildings, structures, or where otherwise required to be compacted for stability, shall be compacted, inspected and tested in accordance with the following provisions. (1) The natural ground surface shall be prepared by removal of topsoil and vegetation, and, if necessary, shall be graded to a series of terraces. If fi11 material unacceptable under (a) above is placed on site or the fill is not placed according to procedures of this Title then it must be removed. (2) The fill shall be spread and compacted in accordance with the City Engineer's approved standards. (3) The moisture content of the fill material shall be 40 controlled at the time of spreading and compaction to obtain required maximum density. (4) A written report of the completed compaction, showing location and depth of test holes, materials used, moisture conditions, recommended soil bearing pressures, and relative density obtained from all tests, prepared by a Civil Engineer or Soils Engineer licensed by the State of Utah or Testing Laboratory shall be submitted to the City Engineer for review. (5) The City engineer may require additional tests or information, if, in his opinion, the conditions or materials are such that additional information is necessary, and may modify or delete any of the above listed requirements that, in his opinion, are unnecessary to further the purpose of this Title. 7. Erosion Control and Revegetation. All cut and fill surfaces created by grading shall be planted with a ground cover that is of a drought resistant variety. Topsoils are to be stockpiled during rough grading and used on cut and fill slopes. Cuts and fills along public roads are required to be landscaped according to an approved plan, as outlined in Section 47-3-5(4). All plant materials must be approved by the Parks Department and Planning Commission and Planning Director prior to subdivision approval. 8. Drainage. (a) Adequate provisions shall be made to prevent any surface waters from damaging the cut face of an excavation or any portion of a fill. All drainage ways and structures shall carry surface waters without producing erosion to the nearest practical street, storm drain or natural water course approved by the City Engineer. The City Engineer may also require drainage structures to be constructed, or 41 installed as necessary to prevent erosion damage or to prevent saturation of the fill or material behind cut slopes. (b) An excess storm water passage shall be provided for all storm water storage areas. Such passage shall have capacity to convey through the proposed development the excess storm water from the tributary watershed. The capacity of such excess storm water passages shall be constructed in such a manner as to transport the peak rate of run-off from a 100 year return frequency storm assuming all storm sewers are inoperative, all upstream areas are fully developed in accordance with the City's current land use plan, and that antecedent rain fall has saturated the tributary watershed. (c) No buildings or structures shall be constructed within such passage, however, streets, parking lots, playgrounds, park areas, pedestrian walkways, utility easements and other open space uses shall be considered compatible uses. In the event such passageway is reshaped or its capacity to transport excess storm water is otherwise restricted during or after construction, the City Engineer shall notify the agency, party or parties causing said restriction to remove the same, and set a reasonable time for its removal. If said parties refuse to or are unable to comply with said order, the City Engineer shall cause said restrictions to be removed at the expense of said parties. Where a proposed development contains existing natural drainage, appropriate planning measures shall be undertaken or required to preserve and maintain said natural drainage as part of the excess storm water passage. (d) Notwithstanding any other provisions of this Title whenever in the judgment of the City Engineer a condition occurs in a storm water storage area or passageway that creates a dangerous and 42 imminent health and safety hazard, the City Engineer shall order such action as shall be effective immediately or in the time and manner prescribed in the order itself. 9. Additional Information. The following additional information may be required to be submitted, in sufficient numbers of copies as is determined by the Planning staff, at the discretion of the Planning Director or City Engineer. (a) Slope Classification Map and analysis. (b) Profiles or cross-sections. (c) Additional drainage calculations. (d) Soils data including a report from a registered soils engineer, engineering geologist, or other qualified person. (e) Statement of the estimated starting and completion dates for the grading work proposed and any revegetation work that may be required. (f) Detailed revegetation plans for the site, and if appropriate, information relating to the landscaping on adjacent or surrounding areas affected by the proposed development. Such landscape plans shall be prepared by a licensed engineer, architect, landscape architect, or other qualified person. These plans shall show: (1) Distribution of plant material, existing trees and work involved as related to slope control and/or physical environment. (2) A plan describing the methods of planting the areas to be landscaped with special emphasis on: (i) soil preparation, plant material and methods of planting; and (ii) initial maintenance of the 43 plant material and slopes until a specified percentage of plant coverage is established uniformly on the cut and fill slopes. (3) Such other and further details as may be specified and required by the Planning Director to carry out the purposes of this Title. All such plans shall bear the name of the person responsible for the preparation of the plan. (4) The revegetation plan will be submitted by the Planning Director to the Salt Lake City Parks Department's landscape architect for review. (g) The present contours of the site in dashed lines and the proposed contours in solid lines. Contour intervals shall be not more than two (2) feet where slopes are predominately five (5) percent or less, and five (5) feet where slopes are predominately steeper than five (5) percent. (h) The location of all drainage to, from and across the site, the location of intermittent and permanent streams, springs and culverts and other drainage structures, and size and location of any precipitation catchment area in, above or within one hundred (100) feet of the site. (i) Detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs and other protective devices to be constructed with or as a part of the proposed work together with a map showing drainage areas, and the complete drainage network including outfall lines and natural drainageways which may be affected by the proposed project. Include the estimated runoff of the areas served by the proposed drainage system. 44 (j) Whenever a proposed subdivision lies within 500 feet of an identified fault, a geological report and verification as per Section 47-3-5(2) will be required. These reports will be submitted for review to the Utah Geological and Mineral Survey by the Planning Director. (k) Plan showing temporary erosion control measures to prevent erosion during the course of construction and a revegetation plan addressing the requirements of Section 47-3-5(3) and (4). (1) A description of the method to be employed in disposing of soil and other material that is removed from the site, including the location of the disposal site. (m) A descripton of the method to be used in obtaining fill to be used on the site and the site of acquisition of such fill. (n) Such other information as shall be required by the Planning Director. SECTION 47-3-5. FOOTHILL DEVELOPMENT OVERLAY ZONE SPECIAL REGULATIONS. The following reports and regulations will be required for the approval of any subdivision request located within a zoning area designated as the "Foothill Development Overlay Zone" ("F-1"). 1. Soils Reports. (a) The U.S.D.A. Soil Conservation Service publication, Soil Survey of Salt Lake City Area, Utah (April 1974) and Soil Survey and Interpretation, Summit Soil Survey Area, Wasatch Mountain Portion, Salt Lake County, Utah (June 1975), are hereby adopted as the official soil maps and interpretations for soils in Salt Lake City. (b) The surveys adopted in Section (1) above, are to be used 45 as a guide to land use planning for those items covered in the survey in Salt Lake City and are not intended to replace on-site soil investigations. (c) The Planning Commission shall require a soil investiga- tion report if the Salt Lake County 208 Water Quality Soils Map andinterpretation shows soils in the area proposed for development which present one or more constraints to development as defined on said map. Such soils report shall be prepared by a person or firm qualified by training and experience to have knowledge of the subject and must contain at least the following information: (1) Slope Classification Map and analysis; (2) Estimate of the normal highest elevation of the seasonal high watertable; (3) The location and size of swamps, springs, and seeps shall be shown on the site plan and an investigation made to determine the reasons for occurence of these underground water sources. An analysis of the vegetation cover or other surface information may be used to show the presence of the underground water; (4) Unified soil classification for the major horizons (layers of soil profile) or of the zone of the footing foundation including, where appropriate, the Plasticity Index (PI) and Liquid Limit (LL); (5) Shrink Swell Potential. Said potential and its characteristics shall be determined and classified according to the tests prescribed in Section 2904(a) of the [Adopted] Uniform Building Code and related references; (6) Potential frost action based on the depth to watertable and the unified soils classification; 46 (7) The soil, suitabilities, constraints and proposed methods of mitigating said constraints in implementing the proposed development plan; (8) A verified writen statement by the person or firm preparing the soils report identifying the soil constraints to development and further stating in his professional opinion, the ability of the proposed development plan to mitigate and/or eliminate said constraints in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use or stability of a public way or drainage channel and adverse impact on the natural environment. 2. Geology Reports (a) A geology report shall be prepared by a person or firm qualified by training and experience to have knowledge of the subject. Since the nature and distribution of earth materials, faults, folds, slide masses, or other significant features cannot be described fully and effectively in words alone, a geologic map shall accompany the report. Mapping should reflect careful attention to the rock composition, structural elements, surface, and subsurface distribution of the earth materials exposed or inferred features and/or relationships. (b) It should be understood that Salt Lake City is in Seismic Zone Three, such zone having the highest probability of earthquake damage. Therefore, the report shall contain at least the following information: (1) Location and size of subject area and its general setting with respect to major geographic and/or geologic features; (2) Identification of the person who did the geologic 47 mapping upon which the report is based and the dates when the mapping was done; (3) Existing topography and drainage in the subject area; (4) Abundance, distribution and general nature of exposures of earth materials within the area; (5) Nature and source of available subsurface information; (6) Estimated depth of bedrock; (7) Bedrock - igneous, sedimentary, metamorphic types; (8) Structural features - including, but not limited to, stratification, stability, folds, zones of contortion or crushing, joints, fractures, shear zones, faults, and any other geological limitations; (c) A verified written statement by the person or firm preparing the geology report identifying any geological problems to development and further stating in his professional opinion, the ability of the proposed development plan to mitigate and/or eliminate said problems in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use, or stability of a public way or drainage channel, and adverse impact on the natural environment. 3. Grading and Drainage Plan. (a) A grading and drainage plan prepared by a professional engineer registered in the State of Utah shall be submitted with each application. The plan must be sufficient to determine the erosion control measures necessary to prevent soil loss during construction as well as after project completion. 48 (b) The plan shall include, as a minimum, the following information: (1) Map of the entire site showing existing details and contours of the property using, at a maximum, ten foot contour intervals and a scale of 1" = 100'. (2) Supplemental map(s) of area(s) to be graded showing existing details and contours at five foot intervals where terrain will not be modified and proposed details and contours of two foot intervals where terrain modification is proposed, using a scale of 1" = 20'. (3) An investigation of the effects of high intensity rain storm (100 year return frequency storm according to U.S. Department of Commerce Weather Bureau Frequency Curves) evaluating how the proposed drainage system will handle the predicted flows. Include the effect of drainage areas outside the development which drain through the subject area and the anticipated flow and handling of the drainage leaving the development. (4) History, including frequency and duration of prior flooding. (5) Location of any existing building or structures and the approximate location of any proposed buildings or structures on the area to be developed and any existing buildings or structures on land of adjacent owners which are within 100 feet of the property or which are on the land of adjacent owners beyond said distance but may be affected by the proposed development. (6) The direction of proposed drainage flow and the approximate grade of all streets (not to be construed as the grades used for the final street design). 49 (7) Detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs and other protective devices to be constructed with or as a part of the proposed work, together with a map showing drainage areas, and the complete drainage network including outfall lines and natural drainageways which may be affected by the proposed project. Include the estimated runoff of the areas served by the proposed drainage system. (8) A description of the method to be used in obtaining fill to be used on the site and the site of acquisition of such fill. (9) A description of methods to be employed in disposing of soil and other materials to be removed from the site, including the location of the disposal site. (10) Plan showing temporary erosion control measures to prevent erosion during the course of construction. (11) A schedule showing when each stage of the development will be completed, including the total area of soil surface which is to be disturbed during each stage and estimated starting and completion dates. The schedule shall be drawn to limit the time that soil is exposed and unprotected to the shortest possible period. In no event shall the existing "natural" vegetation or ground cover be destroyed, removed, or disturbed more than 15 days prior to commencing grading for development as scheduled. (c) A verified written statement by the person or firm preparing the grading and drainage plan identifying any grading and drainage problems to development and further stating in his professional opinion, the ability of the proposed plan to mitigate 50 and/or eliminate said problems in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use, or stability of a public way or drainage channel, and adverse impact on the natural environment. 4. Vegetation Preservation and Protection Plan. (a) Vegetation shall be removed only when absolutely necessary, i.e., for buildings, filled areas. roads and Fuel Breaks. Every effort shall be made to conserve topsoil which is removed during construction for later use on areas requiring vegetation or landscaping, i.e., cut and fill slopes. (b) All areas of excavation (cut or fill) attendant to new development shall be sufficiently revegetated to assure that they are protected from erosion due to normal wind or surface water conditions. Vegetation sufficient to stabilize the soil shall also be established on all disturbed areas (including lots which may be subject to future grading) as each stage of grading is completed. Disturbed areas not contained within lot boundaries shall be protected with adapted, fire-resistant species of perennial vegetative cover after grading and/or subdivision improvement related construction is completed. Such revegetation should be in place and of sufficient coverage and maturity to assure that the required protection is existent prior to the release of thes improvement bond. The new vegetation shall be equivalent to or exceed the amount and erosion control characteristics of the original vegetation cover. It should be further assured as to duration and establishment by a minimum of a two year warranty. (c) The property owner and subdivider shall be fully responsible for any destruction of native vegetation proposed for 51 retention under the approved vegetation plan and shall be responsible for the replacement of such destroyed vegetation. Said duties shall continue from the first day of construction until the certificate of occupancy is issued. During this time the property owner and subdivider shall be strictly liable for its own actions and those of its employees or subcontractors. A bond in the amount specified in the approved vegetation plan shall be posted prior to issuing permit to ensure completion of the vegetation plan. (d) A vegetation plan and report shall be prepared by a person or firm qualified by training and experience to have expert knowledge of the subject and shall include the following: (1) Survey of existing trees, large shrubs and ground covers; (2) Plan for the proposed revegetation of the site detailing existing vegetation to be preserved, new vegetation to be planned and any modification to existing vegetation; (3) Plan for the preservation of existing vegetation during construction activity; (4) Vegetation maintenance program including initial and continuing maintenance necessary; (5) Determination of proposed bond necessary to insure soil stabilization. Bond should be provided in an amount sufficient to pay cost of grading, planting and maintenance necessary to stabilize the soil in the event the subdivider fails to complete the same. The bond need not cover the expense of items which would beautify the terrain beyond its natural condition, but only work necessary to restore the terrain to the relative stability of its previous state. 52 (e) A verified written statement by the person or firm preparing the vegetation plan and report identifying any vegetation problems to development and further stating in his professional opinion, the ability of the proposed plan to mitigate and/or eliminate said problems in a manner as to prevent hazard to life, hazard to property, adverse affect on the safety, use or stability of a public way or drainage channel, and adverse impact on the natural environment. 5. Fire protection report. A fire protection report shall be prepared to assess fire probability and potential hazards by a person or agency qualified by training and experience. Elements of the report should include the following: (1) The width and approximate location of any easement required for access of fire protection equipment; (2) Agreements, if any, entered into by the applicant and a fire protection entity or other government agency that could have concerns about fire probability (State and Federal agencies); (3) The approval of the subdivision design and fire protection measures by the fire protection entity; (4) A letter from the Chief of the Salt Lake City Fire Department stating: (i) Fire flow recommendation by insurance service organization. (ii) The existing fire flow capability or the fire flow capability proposed to serve the project. 6. Access to public and private property report. A report assuring that there is provision made for dedicated rights-of-way to 53 provide access to public or private land adjacent to the area proposed for development. These rights-of-way shall be designed and constructed to standards acceptable to the City Engineer. No access road will be allowed to be constructed if terrain is too steep or unsuitable for use but the right-of-way may, nevertheless, be required to be dedicated by the Planning Commission. 7. Notification of adjacent landowners (pubiic or private). Owners of adjacent lands which may be impacted by the proposed development shall be notified of a request for preliminary approval and given an opportunity to appear before the Planning Commission prior to final approval when it reviews the development proposal. This process will help to ensure against future boundary and use conflicts and to avoid "land locking" property, therefore creating a situation beneficial to neither the public nor the private sector. SECTION 47-3-6. FLOOD PLAIN SPECIAL REGULATIONS. In addition to the provisions of Chapter 8 of this Title, the following special regulations and design standards shall apply to all subdivision development within areas identified as being within the boundaries of the Flood Hazard Boundary Map, as defined in Section 47-8-2, Revised Ordinances of Salt Lake City, Utah: 1. Design of Systems. All proposals for subdivision development must provide a water supply system and sanitary sewage systems which are designed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into flood water. Other on-site waste disposal systems must be located so as to avoid impairment of them, or contamination from them, during flooding. All 54 public utilities, including sewer, gas, electricty and water systems shall be designed, located and constructed to minimize or eliminate flood damage. All public improvements (including, but not limited to, streets, sidewalks, curbs, gutter, etc), shall be designed and constructed with adequate drainage systems to minimize the containment of flood waters on adjacent properties. 2. Lot Base Flood Elevations. The preliminary and final plats for all proposed subdivisions and other proposed areas of new development, which are wholly or partially within the Floodplain Hazard Area shall include base flood elevations for each lot within the Floodplain Hazard Area. SECTION 47-3-7. CANYON DEVELOPMENT SPECIAL REGULATIONS. In addition to the other provisions of this Title, the following special regulations and design standards which may be more restrictive shall apply to all subdivision development within areas zoned Residential Canyon "R-IC" and Business Canyon "B-3C". 1. Hydrology. (a) All development including subdivisions, planned or grouped developments and commercial development shall meet the drainage and flood control regulations established by the City Engineer. (b) No structures, cuts, fills, significant modification of the terrain, hardsurfacing or any activity which would cause deterioration of the natural terrain or vegetation shall be permitted within 100 feet of the streambank (defined as the mean highwater line), and said area shall be designated as undevelopable area. 55 (c) Additional and undevelopable streamside areas containing extremely severe physical conditions, such as steep slopes, may be declared undevelopable by the Planning Commission as required by the City Engineer to provide additional safety buffer zones. (d) Structures intended to bridge a stream shall be of a design which meets the standards of the City Engineer. 2. Grading (See also Section 47-3-4). (a) All excavated material shall be removed from the site or placed behind retaining walls or otherwise replaced, recontoured and revegetated. (b) All cut and fill slopes shall be recontoured and revegetated by the subdivider in such a manner as to blend with the natural terrain as specified in this Title. (c) No cuts or fills with a vertical height exceeding 15 feet shall be permitted. (d) Not more than 5 percent of a lot or P.U.D. site shall be left with a slope steeper than the natural grade of the ground or steeper than 20 percent, whichever is greater. (e) The total area of all cuts and fills other than the enclosed floor area of the structure(s) shall not exceed 10 percent of the Tot or PUD site. (f) Public streets shall not traverse or disturb slopes of 30 percent or steeper. SECTION 47-3-8. NON-RESIDENTIAL SUBDIVISION SPECIAL REGULATIONS. The followng special regulations and design standards shall apply to 56 all nonresidential subdivision development within areas zoned for commercial or industrial uses: 1. General Design. The street and lot layout of a non-residential subdivision shall be appropriate to the land for which the subdivision is proposed, and shall conform to the proposed land use and standards established in the Salt Lake City Master Plan, any community master plans and the ordinances of Salt Lake City. 2. Industrial and Commercial. Non-residential subdivisons shall include industrial tracts and may include commercial tracts. 3. Principles and Standards. In addition to the principles and standards in this Title which are appropriate to the planning of all subdivisions, the subdivider shall demonstrate to the satisfaction of the Planning Commission that the street, parcel and block patterns proposed are specifically adapted to the uses anticipated and take into account other uses in the vicinity. The following principles and standards shall be observed: (a) Proposed industrial parcels shall be suitable in area and dimensions to the types of industrial development anticipated. (b) Street rights-of-way and pavements widths shall be adequate to accommodate the type and volume of traffic anticipated to be generated thereon (See Section 47-3-3). (c) Special requirements may be imposed by the City with respect to street, curb, gutter and sidewalk design and construction. (d) Special requirements may be imposed by the City with respect to the installation of public utilities including water, sewer and storm water drainage. 57 (e) Every effort shall be made to protect adjacent residen- tial areas from potential nuisance from the proposed non-residential subdivision, including the provision of extra depth in parcels backing against existing or potential residential development and provisions for a permanently landscaped buffer strip or other suitable screening methods such as berms or walls as required by the Planning Commission. (f) Streets carrying non-residential traffic, especially truck traffic, shall not normally be extended to the boundaries of adjacent existing or potential residential areas, or connected to streets intended for predominantly residential traffic. (g) Subdivisions for proposed commercial development shall take into account and specifically designate all areas for vehicular circulation and parking, for pedestrian circulation and for buffer strips and other landscaping and shall provide for maintenance of such private improvements. SECTION 47-3-9. INSPECTIONS AND ENFORCEMENTS. The Planning Commission with assistance from the City Engineer and Traffic Engineer will handle subdivision approval. The City Engineer will have responsibility for inspections and enforcement. At the time the subdivision approval is issued, the City Engineer shall establish a schedule for inspections as specified in Section 47-4-5. Where it is found by inspection that conditions are not substantially as stated or shown in the approved subdvision plans, the City Engineer or his inspectors shall stop further work until approval is obtained for an amended subdivision plan. 58 CHAPTER 4 LAND DEVELOPMENT REQUIREMENTS: BUILDING SITES SECTIONS: 47-4-1. General Application 47-4-2. Permits Required 47-4-3. Grading and Erosion Control Design Standards and Regulations 47-4-4. Setbacks 47-4-5. Site Development Inspection 47-4-6. Compliance of Work SECTION 47-4-1. GENERAL APPLICATION. No person or party shall do or cause any grading to be done on a building site without first having obtained site development approval in conjunction with the building permit process or a permit from the Building Official except as specified below: 1. Work requiring separate approval/permit. A site development approval/permit shall be required in all cases where development comes under any one or more of the following provisions; (a) Excavation, fill or any combination thereof exceeding 1,000 cubic yards; (b) Excavation, fill or any combination thereof exceeding five feet in vertical depth at its deepest point measured from the adjacent, undisturbed ground surface; 59 (c) Excavation, fill or any combination thereof exceeding an area of 1/2 acre; (d) Excavation, fill or any combination thereof exceeding 75 percent of a building site including the excavation for foundation and footings. (e) Removal of vegetation from an area in excess of 1/2 acre for purposes other than agricultural; (f) Engineered interior fills or surcharges; 2. Work not requiring separate approval/permit. A separate site development permit shall not be required in the following cases for issuance of a building permit shall specify approval of the required grading plan: (a) Excavations below finished grade for basements and footings of buildings or other structures authorized by a valid building permit. This shall not exempt any fill made with the material from such excavation, or exempt any excavation having an unsupported height greater than five feet after the completion of such structure; (b) Removal of vegetation as part of work authorized by a valid building permit; 3. Waiver. The following requirements and standards shall apply to all building sites unless deemed unwarranted by the written recommendation of the Building Official; SECTION 47-4-2. PERMITS REQUIRED. Except as exempted in the foregoing Section 47-4-1, no person or party shall do or cause any grading to be done on a building site without first obtaining site 60 development approval or permit from the Building Official. A separate approval or permit shall be required for each site, and may cover both excavations and fills. 1. Application. To obtain a permit or approval the applicant shall first file an application therefor in writing on a form furnished by the Building Department for that purpose. Every such application shall: (a) Identify and describe the work to be covered by the permit or approval for which the application is made. (b) Describe the land on which the proposed work is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed work and identify lots of any platted subdivision included within the proposed building site. (c) Indicate the use or occupancy for which the proposed work is intended. (d) Be accompanied by plans, diagrams, computations and specifications and other data as required. (e) Be signed by property owner as permittee, or his authorized agent, who may be required to submit evidence to indicate such authority. (f) Show the location of existing and proposed buildings or structures on the applicant's property, and the location of buildings or structures on adjacent properties which are within 15 feet of the applicant's property, or which may be affected by the proposed site development activities. 61 (g) Show the location of property lines and all existing and proposed streets, roadways, driveways, easements and rights-of-way on contiguous or adjacent to the proposed development site. (h) Show the present contours of the site in dashed lines and the proposed contours in solid lines. Contour intervals shall be not greater than two (2) feet where slopes are predominantly five (5) percent or less, and five feet where slopes are predominantly steeper than five (5) percent. The source of all topographical information shall be indicated. (i) Show the location of all drainage to, from and across the site, the location of intermittent and permanent streams, springs, and culverts and other drainage structures, and size and location of any precipitation catchment area in, above or within 100 feet of the site. (j) Show detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs and other protective devices to be constructed with or as a part of the proposed work, together with a map showing drainage areas, and the complete drainage network including outfall lines and natural drainageways which may be affected by the proposed project. Include the estimated runoff of the areas served by the proposed drainage system. (k) Present a plan showing temporary erosion control measures as outlined in Section 47-3-5(3) to prevent erosion during the course of construction. (1) All grading in excess of 5,000 cubic yards shall require professional engineering and be designated as "engineered grading". 62 Any application including engineered grading shall contain a grading plan prepared by a registered professional engineer or licensed architect. (m) Show a revegetation plan addressing the revegetation requirements specified in Section 47-3-5(4). (n) Make a statement of the estimated starting and completion dates for the grading work proposed and any revegetation work that may be required. (o) Identify the type of surcharging fill material to be used on the building site. (p) Estimate the amount of time surcharging fill material will be in place, and show consideration by a soils engineer of the potential for vertical and lateral soil movements on properties adjacent to the surcharge. (q) Submit a copy of the recorded subdivision plat showing developable area limitations. (r) Such other information as may be required by the Building Official or City Engineer. 2. Soil engineering report or engineering geology required. (a) Soil Engineering Report. The soil engineering report required shall include data regarding the nature, distribution and strength of existing soils, conclusions and recommendations for grading procedures and design criteria for corrective measures when necessary, and opinions and recommendations addressing the adequacy of the site under the proposed grading plan to support the proposed development. (b) Engineering Geology Report. The engineering geology 63 report required shall include an adequate description of the geology of the site, conclusions and recommendations regarding the effect of geologic conditions on the proposed development, and opinions and recommendations addressing the adequacy of the site under the proposed grading plan to support the proposed development. This requirement may be waived by written recommendation of the Building Official if it is deemed unwarranted. 3. Issuance. The application, plans, specifications and other data submitted by an applicant for permit shall be reviewed by the Building Official. Such plans may be reviewed by other departments or agencies to verify compliance with any applicable laws under their jurisdiction. If the Building Official finds that the work described in an application for a permit and the plans, specifications and other data filed therewith conform to the requirements of this Title and other pertinent laws and ordinances, and that the fees specified have been paid, he shall issue a permit therefor to the property owner or his authorized agent. When the Building Official issues the permit where plans are required, he shall endorse in writing or stamp the plans and specifications "APPROVED". Such approved plans and specifications shall not be changed, modified or altered without authorization from the Building Official, and all work shall be done in accordance with the approved plans. The Building Official may require that site development activities and project designs or specifications be modified if delays occur which may create weather-generated problems not considered at the time the permit was issued. No site alteration which shall occur during the months of November through March and no applications proposing such work during that time shall be approved. 64 4. Fees. (a) Plan-checking Fee. For excavation and fill on the same site, the fee shall be based on the volume of the excavation or fill, whichever is greater. Before accepting a set of site development plans and specifications for checking, the Building Official shall collect a site development plan-checking fee. Separate permits and fees shall apply to retaining walls or major drainage structures as indicated elsewhere in this code. There shall be no separate charge for standard terrace drains and similar facilities. The amount of the plan-checking fee for site development plans shall be set forth in Table No. 47-A. The plan-checking fee for a site development permit authorizing additional work to that under a valid permit shall be the difference between such fee paid for the original permit and the fee shown for the entire project. (b) A fee for issuance of each site development permit shall be paid to the Building Official as set forth in Table No. 47-B. 5. Bonds. A performance bond will be required for site development permits in a form approved by the City Attorney and in amounts as may be deemed necessary by the City Engineer to assure that the work, if not completed in accordance with the approved plans and specifications, will be completed or corrected to eliminate hazardous conditions. The performance bond may be provided by a corporate surety, or in lieu thereof, a cash bond or instrument of credit of equal amount. This provision may be waived by the written recommendation of the Building Official if it is deemed unwarranted. 65 TABLE NO. 47-A - PLAN-CHECKING FEES 50 cubic yards or less No Fee 51 to 100 cubic yards $10.00 101 to 1,000 cubic yards 15.00 1,001 to 10,000 cubic yards 20.00 10,001 to 100,000 cubic yards-$20.00 for the first 10,000 cubic yards, plus $10.00 for each additional 10,000 cubic yards or fraction thereof. 100,001 to 200,000 cubic yards-$110.00 for the first 100,000 cubic yards, plus $6.00 for each additional 10,000 cubic yards or fraction thereof. 200,001 cubic yards or more-$170.00 for the first 200,000 cubic yards, plus $3.00 for each additional 10,000 cubic yards or fraction thereof. Other Inspections and Fees: Additional plan review required by changes, additions or revisions to approved plans $15 00 per (minimum charge - one-half hour) hour TABLE NO. 47-B - SITE DEVELOPMENT PERMIT FEES 50 cubic yards or less $10.00 51 to 100 cubic yards 15.00 101 to 1,000 cubic yards-$15.00 for the first 100 cubic yards plus $7.00 for each additional 100 cubic yards or fraction thereof. 1,001 to 10,000 cubic yards-$78.00 for the first 1,000 cubic yards, plus $6.00 for each additional 1,000 cubic yards or fraction thereof 10,001 to 100,000 cubic yards-$132.00 for the first 10,000 cubic yards, plus $27.00 for each additional 10,000 cubic yards or fraction thereof. 100,001 cubic yards or more-$375.00 for the first 100,000 cubic yards, plus $15.00 for each additional 10,000 cubic yards or fraction thereof. Other Inspections and Fees: 1. Inspections outside of normal business hours . . . $15.00 per (Minimum charge - two hours) 2. Reinspection fee assessed under provisions of 305 (h) $15.00 each 3. Inspections for which no fee is specifically indicated $15.00 per hour (minimum charge - one-half hour) 66 SECTION 47-4-3. GRADING AND EROSION CONTROL DESIGN STANDARDS AND REGULATIONS. All subdivision improvement work shall be accomplished in conformance to the following grading and erosion control design standards and regulations: 1. Hours of operation. All grading operations in or contiguous to residential neighborhoods shall be carried on between the hours of 7:00 a.m. to 5:30 p.m. The Building Official may waive this require- ment if it is shown that by restricting the hours of operation it would unduly interfere with the development of the property and it is shown that the neighboring properties would not be adversely affected. 2. Dust and dirt control. All graded surfaces of any nature shall be dampened or suitably contained to prevent dust or spillage on City streets or adjacent properties. Equipment, materials and roadways on the site shall be used or treated so as to cause the least possible annoyance due to dirt, mud, or dust conditions. 3. Undevelopable slopes. Any natural slopes identified on a Slope Classification Map of forty (40) percent or greater shall be designated undevelopable area. Said slope, if retained within the subdivision shall be designated and maintained as common area. In no event shall streets traverse such slopes. 4. Finished cuts and slopes. Limitations shall be applied to the extent of cut and fill slopes to minimize the amount of excavated surface or ground area exposed to potential erosion or settlement. (a) The exposed or finished cuts or slopes of any fill or excavation shall be smoothly graded. (b) All cut and fill slopes shall be recontoured and revegetated by the permittee in accordance with an approved plan. 67 (c) Cut or fill slopes shall normally be limited to fifteen (15) feet in vertical height. However, upon review and favorable recommendation of the City Engineer, the Building Official may recommend that the Mayor approve cut or fill slopes exceeding fifteen (15) feet provided that such variations be allowed on a limited basis after thorough review of each request, and only when balanced by offsetting improvements to the overall aesthetic, environmental and engineering quality of the development. (d) No excavation creating a cut face and no fill creating an exposed surface shall have a slope ratio exceeding one and one-half horizontal to one vertical. EXCEPTION: (1) No slopes shall cut steeper than the bedding plane, fracture, fault or joint in any formation where the cut slope will lie on the dip of the strike line of the fracture, bedding plane, fault or joint. (2) No slopes shall be cut in an existing landslide, mud flow or other form of naturally unstable slope except as recommended by a qualified geological engineer. (3) Where the formation is exposed above the top of the cut which will permit the entry of water along bedding planes, this area shall be sealed with a compacted soil blanket having a minimum thickness of two feet. The soil for this blanket shall be relatively impervious and shall be approved by the soils engineer or engineering geologist. (4) If the material of a slope is of such composition and character as to be unstable under the anticipated maximum moisture 68 contents, the slope angle shall be reduced to a stable value or retained by a method approved by the City Engineer, and certified as to its stability by the soils engineer or geologist. Said retaining method shall include design provisions which are: (i) Conducive to revegetation for soil stability and visual impact. (ii) Used for selected areas of the site and not as a general application. (iii) Limited to tiers each of which is no higher than six (6) feet, separated by plantable terraces a minimum of two feet in width material and free of metal, except that topsoil spread on cut and fill surfaces may incorporate humus for desirable moisture retention properties. (iv) Any retaining system shall remain and be maintained on the lots until plans for construction are approved and a building permit is issued. The plans shall include provisions to integrate driveway access to the lot, while maintaining the structural integrity of the retaining system. (e) The Building,Official may require the slope of a cut or fill be made more level if at any time it is found that the material being cut or the fill is unusually subject to erosion, static or dynamic instability or if other conditions make such requirements necessary for stability. 5. Abatement of Hazardous Conditions. (a) If, at any stage of grading, the Building Official or City Engineer determines by inspection that the nature of the formation is such that further work as authorized by an existing 69 permit is likely to imperil any property, public way, watercourse or drainage structure, the Building Official or City Engineer shall require, as a condition to allowing the work to proceed, that reasonable safety precautions be taken as are considered advisable to avoid likelihood of such peril. Such precautions may include, but shall not be limited to any of the following: specification of a more level exposed slope; construction of additional drainage facilities, berms, or terraces; compaction or cribbing; installation of plant materials for erosion control; and reports of a registered soils engineer and/or of an engineering geologist whose recommendations may be made requirements for further work. Such a requirement by the Building Official or City Engineer shall constitute a required change order in the work to be performed under permit. Said changes may be required to be reflected in amended plans. (b) Where it appears that damage from storm drainage may result from work performed hereunder, such work may be stopped and the permitee required to take such measures as may be necessary to protect adjoining property or the public safety. On large operations or where unusual site conditions exist, the Building Official or City Engineer may specify the time at which grading may proceed and the time of completion or may require that the operation be conducted in specific stages so as to insure completion of protective measures or devises prior to the advent of seasonal rains. 6. Fill Material and Compaction. (a) Fill Material. All fill shall be earth, rock or other inert materials free from organic material and free of metal, except 70 that topsoil spread on cut and fill surfaces may incorporate humus for desirable moisture retention properties. Fill not meeting the defini- tion above shall be placed only in an approved public or private landfill or other approved deposit site. (b) Back Fillings. Any pipe trench or trenching, or excavation made in any slope of any excavated or filled site, shall be backfilled and compacted to the level of the surrounding grade. (c) Compaction of fills. Unless otherwise directed by the Building Official, all fills governed by this ordinance, intended to support buildings, structures, or where otherwise required to be compacted for stability, shall be compacted, inspected and tested in accordance with the following provisions. (1) The natural ground surface shall be prepared by removal of topsoil and vegetation, and, if necessary, shall be graded to a series of terraces. If fill material unacceptable under (a) above is placed on site or the fill is not placed according to procedures of this Title then it must be removed. (2) The fill shall be spread and compacted in accordance with the City Engineer's approved standards. (3) The moisture content of the fill material shall be controlled at the time of spreading and compaction to obtain required maximum density. (4) A written report of the completed compaction, showing location and depth of test holes, materials used, moisture conditions, recommended soil bearing pressures, and relative density obtained from all tests, prepared by a Civil Engineer or Soils Engineer licensed by the State of Utah or Testing Laboratory shall be submitted to the 71 Building Official, who shall rely on the expertise of the City Engineer for review. (5) The Building Official or City Engineer may require additional tests or information, if, in his opinion, the conditions or materials are such that additional information is necessary, and may modify or delete any of the above listed requirements that, in his opinion, are unnecessary to further the purpose of this Title. 7. Erosion control and revegetation. All cut and fill surfaces created by grading shall be planted with a ground cover that is of a drought resistant variety. Topsoils are to be stockpiled during rough grading and used to cut and fill slopes. Cuts and fills along public roads are required to be landscaped according to an approved plan, as outlined in Section 47-3-5(4). All plant materials must be approved by the Parks Department and Building Official prior to approval. 8. Drainage. (a) Adequate provisions shall be made to prevent any surface waters from damaging the cut face of an excavation or any portion of a fill. All drainage ways and structures shall carry surface waters without producing erosion,to the nearest practical street, storm drain or natural water course approved by the City Engineer. The City Engineer may also require drainage structures to be constructed, or installed as necessary to prevent erosion damage or to prevent saturation of the fill or material behind cut slopes. (b) An excess storm water passage shall be provided for all storm water storage areas. Such passage shall have capacity to convey through the proposed development the excess storm water from the tributary watershed. The capacity of such excess storm water passages shall be constructed in such a manner as to transport the peak rate of 72 run-off from a 100 year return frequency storm assuming all storm sewers are inoperative, all upstream areas are fully developed in accordance with the City's current land use plan, and that antecedent rain fall has saturated the tributary watershed. (c) No buildings or structures shall be constructed within such passage, however, streets, parking lots, playgrounds, park areas, pedestrian walkways, utility easements and other open space uses shall be considered compatible uses. In the event such passageway is reshaped or its capacity to transport excess storm water is otherwise restricted during or after construction, the Building Official or City Engineer shall notify the agency, party or parties causing said restriction to remove the same, and set a reasonable time for its removal. If said parties refuse to or are unable to comply with said order, the Building Official or City Engineer shall cause said restrictions to be removed at the expense of said parties. Where a proposed development contains existing natural drainage, appropriate planning measures shall be undertaken or required to preserve and maintain said natural drainage as part of the excess storm water passage. (d) Notwithstanding any other provisions of this ordinance, whenever in the judgment of the Building Official or City Engineer a condition occurs in a storm water storage area or passageway that creates a dangerous and imminent health and safety hazard, the Building Official or City Engineer shall order such action as shall be effective immediately or in the time and manner prescribed in the order itself. 9. Surcharging. Surcharges shall consist of earth material and 73 shall be applied in such a manner as to have no effect on soil stability on adjacent or neighboring properties. SECTION 47-4-4. SETBACKS. General. The setbacks and other restrictions specified by this section are minimum and may be increased by the Building Official or by the recommendation of a civil engineer, soils engineer or engineering geologist, if necessary for safety and stability, to prevent damage of adjacent properties from deposition or erosion, or to provide access for slope maintenance and drainage. Setbacks deal with distances from property lines, structures or faults, and must satisfy requirements of paragraphs 1-3 below. Retaining walls may be used to reduce the required setbacks when approved by the Building Official. 1. Setbacks from Property Lines. The toes and tops of cut and fill slopes where no structures are located shall he set back from the outer boundaries of the Permit Area, (PA = lot area excluding any undevelopable areas), including yard setbacks, slope-right areas and easements, in accordance with Figure No. 1 and Table No. 47-C, where "a" = setback distance at toe, and "b" = setback at top, and "H" = height from toe to top of cut/fill slope. TABLE NO. 47-C REQUIRED SETBACKS FROM PERMIT AREA BOUNDARY (IN FEET) SETBACKS Height = H a b* under 5 0 1 5-30 H/2 H/5 over 30 15 6 *Additional width may be required for interceptor drain. 74 top of PAj* slope Figure No. 1 b Natural or finish grade toe of cut or fill PA** slo e slope 1 H = height from toe to I a top of slope **Permit Area Boundary Natural or finish grade 2. Setback from Structures. Setbacks between graded slopes (cut or fill) and structures shall be provided in accordance with Figure No. 2. face of footing —,1 Figure No. 2 b top of slope—.> face of structure I H toe of slope a = H/2 but need not exceed 15' max. b = H/2 but need not exceed 10' max. a 3. Setback from Faults. No structure shall be located over a fault. Determinations of the appropriate setback distance from the fault shall be made using the data computed in the geological report as per Section 47-4-2(2) by the person or firm who prepared the geological report. SECTION 47-4-5. ,SITE DEVELOPMENT INSPECTION. 1. Special Inspections. All site development activities for which a permit or approval is required shall be subject to inspection 75 by the Building Official. Special inspections of grading operations and special testing shall be performed to ensure conformity with approved plans and specifications. The following special inspections will be required: (a) Fills. (1) The site is to be inspected prior to the placement of fill material. (2) The fill material is to be inspected prior to placement on the site. (3) Final compaction of fill is to be tested. (4) The final grade is to be inspected. (5) Revegetation will be inspected during planting, upon planting completion and again prior to bond release where applicable. (b) Cuts. (1) The site is to be inspected prior to cutting or removing material. (2) The grade is to be inspected after cutting. (3) Revegetation will be inspected as under (a)(5) above. 2. Inspection Schedule and Enforcement. At the time the site development permit or approval is issued, the Building Official shall establish the stage of development at which required inspections shall be made. In order to obtain inspections, the permittee shall notify the City of readiness at least 24 hours before said inspection is to be made. Where it is found by inspection that conditions are not substantially as stated or shown on the approved plans, the Building Official or his inspectors shall stop further work until approval is obtained for amended plans. 76 SECTION 47-4-6. COMPLETION OF WORK. 1. Final Reports. Upon completion of the rough grading work and again at the final completion of the work, reports and drawings and supplements thereto will be required as follows: (a) An "as-graded" grading plan prepared by a Civil Engineer including original ground surface elevations, as-graded surface elevations, lot drainage patterns and locations and elevations of all surface and subsurface drainage facilities. He shall verify that the work was done in accordance with the final approved site development plan. (b) A soil grading report prepared by a Soils Engineer including locations and elevations of field density tests, summaries of field and laboratory tests and other substantiating data and comments on any changes made during grading and their effect on the recommendations made in the soil engineering investigation report. He shall verify the adequacy of the site for the intended use. (c) A geologic grading report prepared by the Engineering Geologist including a final description of the geology of the site including any new information disclosed during the grading and the effect of same on recommendations incorporated in the approved site development plan. He shall verify the adequacy of the site for the intended use as affected by geologic factors. This requirement may be modified or waived in writing by the Building Official if circum- stances warrant. 2. Notification of Completion. The permittee or his agent shall notify the Building Official when the grading operation is ready for final inspection. Final approval shall not be given until all work 77 including installation of all drainage facilities and their protective devices and all erosion control measures including revegetation have been completed in accordance with the final approved site development plan and the required reports have been submitted. 78 CHAPTER 5 INDEPENDENT SITE DEVELOPMENT ACTIVITIES SECTIONS: 47-5-1. General Application 47-5-2. Permit Application 47-5-3. Foothill Development Overlay Zone Reports 47-5-4. Granting Permit 47-5-5. Inspections 47-5-6. Grading and Erosion Control Design Standards and Regulations 47-5-7. Special Canyon Site Deelopment Standards SECTION 47-5-1. GENERAL APPLICATION. No person shall commence or perform or cause any grading to be done in excess of the limits specified below without first obtaining a site development permit. A separate independent site development permit not otherwise required under Chapters 3 and 4 of this Title, shall be required for each site on which grading is to be done as specified in subsection one (1) of this section. 1. General. A site development permit shall be required in all cases where development comes under any one or more of the following provisions: (a) Excavation, fill or any combination thereof exceeding 1,000 cubic yards; (b) Excavation, fill or any combination thereof exceeding five feet in vertical depth at its deepest point measured from the adjacent, undisturbed ground surface; 79 (c) Excavation, fill or any combination thereof exceeding an area of 1/2 acre; (d) Excavation, fill or any combination thereof exceeding 75 percent of a development site, including the excavation of the foundation and footings; (e) Removal of vegetation from an area exceeding 1/2 acre for the purposes other than agricultural; (f) Engineered interior fills or surcharges; (g) Fuel Break for fire protection purposes; (h) Commercial quarries or mining activities operating in appropriate industrial zones as provided in the Salt Lake City Zoning Ordinance; (i) Excavation or removal of vegetation or tilling of soil within public or private property within the Foothill Development Overlay (F-1) Zone or the Preservation (P-1) Zone: 2. Waiver. All of the following requirements and standards shall apply unless deemed unwarrented by the Building Official and waived in writing. SECTION 47-5-2. PERMIT APPLICATION. Each application for an independent site development permit shall be made by the owner of the property or his/her authorized agent to the Building Official on a form furnished for that purpose. The application shall include: 1. Information to be Included. Plot plans of the property drawn to scale in three copies which: (a) Identify and describe the work to be covered by the permit for which the application is made. 80 (b) Describe the land on which the proposed work is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed work, and identify lots of any platted subdivision included within the proposed building site. (c) Indicate the use or occupancy for which the proposed work is intended. (d) Be accompanied by plans, diagrams, computations and specifications and other data as required. (e) Be signed by property owner as permittee, or his authorized agent, who may be required to submit evidence to indicate such authority. (f) Location of existing and proposed buildings or structures on the applicant's property, and the location of buildings or structures on adjacent properties which are within 15 feet of the applicant's property, or which may be affected by the proposed site development activities. (g) Location of all property lines and existing and proposed streets, roadways, driveways, easements and rights-of-way contiguous or adjacent to the proposed development site. (h) The present contours of the site in dashed lines and the proposed contours in solid lines. Contour intervals shall be not greater than two (2) feet where slopes are predominantly five (5) percent or less, and five (5) feet where slopes are predominantly steeper than five (5) percent. The source of all topographical information shall be indicated. (i) The location of all drainage to, from and across the 81 site, the location of intermittent and permanent streams, springs and culverts and other drainage structures, and size and location of any precipitation catchment area in, above or within 100 feet of the site. (j) Detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs and other protective devices to be constructed with or as a part of the proposed work, together with a map showing drainage areas, and the complete drainage network including outfall lines and natural drainageways which may be affected by the proposed project. Include the estimated runoff of the areas served by the proposed drainage system. (k) Plan showing temporary erosion control measures as outlined in Section 47-5-3(3) to prevent erosion during the course of construction. (1) All grading in excess of 5,000 cubic yards shall require professional engineering and be designated as 'engineered grading'. Any application including engineered grading shall contain a grading plan prepared by a registered professional engineer, or licensed architect. (m) A revegetation plan addressing the revegetation requirements specified in Section 47-5-3 (4). (n) Statement of the estimated starting and completion dates for the grading work proposed and any revegetation work that may be required. (o) Identify the type of surcharging fill material to be used on the building site. (p) A description of the methods to be employed in disposing 82 of soil and other material to be removed from the site, including the location of the disposal site. (q) A description of the methods to be employed in obtaining fill to be used on the site, and the location of the site of acquisition of such fill. (r) Whenever a proposed site lies within 500 feet of an identified fault a geological report and certification statement as outlined in Section 47-5-3 (2) will be required. Said report will be submitted for review by the Building Official to the "UGMS" for review. (s) Applications for commercial quarries shall contain an acceptable plan for the eventual rehabilitation and use of the quarry site after the resources have been removed. Such a plan, at a scale of not less than 1" = 100', with contour intervals not greater than five feet, should be compatible with its surroundings and in general agreement with the City Master Plan. The plan shall show the proposed treatment of any stream channel adjacent to the resource deposits during extraction operations. Limits of excavation shall be determined to protect any natural or improved channel and any nearby wooded areas considered vital to the function of the rehabilitated area. Include the estimated time period during which quarrying and land rehabilitation operations will be conducted. (t) Estimate the amount of time surcharging fill material will be in place, and show consideration by a Soils Engineer of the potential for vertical and lateral soil movements on properties adjacent to the surcharge. 83 (u) If applicable, submit a copy of the recorded subdivision plat showing developable area limitations. 2. Additional Information Which May Be Required. The following information shall be provided in triplicate if requested by the Building Official or City Engineer. (a) Slope Classification Map and analysis. (b) Profiles or cross-sections. (c) Additional drainage calculations. (d) Soils data including a report from a registered soils engineer, engineering geologist, or other qualified person. (e) Statement of the estimated starting and completion dates for the grading work proposed and any revegetation work that may be required. (f) Detailed revegetation plans for the site, and if appropriate, information relating to the landscaping on adjacent or surrounding areas affected by the proposed development. Such landscape plans shall be prepared by a licensed engineer, architect, landscape architect, or other qualified person. These plans shall show: (1) Distribution of plant material, existing trees and work involved as related to slope control and/or physical environment. (2) A plan describing the methods of planting the areas to be landscaped with special emphasis on; (i) soils preparation, plant material and methods of planting; and (ii) initial maintenance of the plant material and slopes until a specified percentage of plant coverage is established uniformly on the cut and fill slopes. 84 (3) Such other and further details as may be specified and required by the Building Official to carry out the purposes of this Title. All such plans shall bear the name of the person responsible for the preparation of the plan. (4) The revegetation plan will be submitted by the Building Official to the Salt Lake City Parks Department's landscape architect for review. (g) Such other information as shall be required by the Building Official or City Engineer. 3. Fee. Each site development application made independent and separate from a building permit application shall be accompanied by payment of an application fee of $25.00. SECTION 47-5-3. FOOTHILL DEVELOPMENT OVERLAY ZONE REPORTS. Notwithstanding any foregoing provisions appearing to the contrary, the application for a site development permit for any area situated a zoning area designated as the Foothill Development Overlay Zone (F-1) shall also include the additional information: 1. Soils reports. (a) The U.S.D.A. Soil Conservation Service publication, Soil Survey of Salt Lake City Area, Utah (April 1974) and Soil Survey and Interpretation, Summit Soil Survey Area, Wasatch Mountain Portion, Salt Lake County, Utah (June 1975), are hereby adopted as the official soil maps and interpretations for soils in Salt Lake City. (b) The surveys adopted in Section (1) above are to be used as a guide to land use planning for those items covered in the survey 85 in Salt Lake City and are not intended to replace on-site soil investigations. (c) The Planning Commission shall require a soil investigation report if the Salt Lake County 208 Water Quality Soils Map and interpretation shows soils in the area proposed for development present one or more constraints to development as defined on said map. Such soils report shall be prepared by a person or firm qualified by training and experience to have knowledge of the subject and must contain at least the following information: (1) Slope Classification Map and analysis; (2) Estimate of the normal highest elevation of the seasonal high watertable; (3) The location and size of swamps, springs, and seeps shall be shown on the site plan and an investigation made to determine the reasons for occurrence of these underground water sources. An analysis of the vegetation cover or other surface information may be used to show the presence of the underground water; (4) Unified soil classification for the major horizons (layers of soil profile) or of the zone of the footing foundation including, where appropriate, the Plasticity Index (PI) and Liquid Limit (LL); (5) Shrink swell potential. Said potential and its characteristics shall be determined and classified according to the tests prescribed in Section 2904(a) of the Uniform Building Code and related references; (6) Potential frost action based on the depth to watertable and the unified soils classification; 86 (7) The soil, suitabilities, constraints and proposed methods of mitigating said constraints in implementing the proposed development plan; (8) A verified written statement by the person or firm preparing the soils report identifying the soil constraints to development and further stating in his professional opinion, the ability of the proposed development plat to mitigate and/or eliminate said constraints in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use or stability of a public way or drainage channel and adverse impact on the natural environment. 2. Geology Reports. (a) A geology report shall be prepared by a person or firm qualified by training and experience to have knowledge of the subject. Since the nature and distribution of earth material, faults, folds, slide masses, or other significant features cannot be described fully and effectively in words alone, a geologic map shall accompany the report. Mapping should reflect careful attention to the rock composition, structural elements, surface, and subsurface distribution of the earth materials exposed or inferred features and/or relationships. (b) It should be understood that Salt Lake City is in Seismic Zone Three, such zone having the highest probability of earthquake damage. Therefore, the report shall contain at least the following information: (1) Location and size of subject area and its general setting with respect to major geographic and/or geologic features; 87 (2) Identification of the person who did the geologic mapping upon which the report is based and the dates the mapping was done; (3) Existing topography and drainage in the subject area; (4) Abundance, distribution and general nature of exposures of earth materials within the area; (5) Nature and source of available subsurface information; (6) Estimated depth of bedrock; (7) Bedrock - igneous, sedimentary, metamorphic types; (8) Structural features - including, but not limited to, stratification, stability, folds, zones of contortion or crushing, joints, fractures, shear zones, faults, and any other geological limitations; (c) A verified written statement by the person or firm preparing the geology report identifying any geological problems to development and further stating in his professional opinion, the ability of the proposed develpment plan to mitigate and/or eliminate said problems in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use, or stability of a public way or drainage channel and adverse impact on the natural environment. 3. Grading and Drainage Plan. (a) A grading and drainage plan prepared by a professional engineer registered in the State of Utah shall be submitted with each application. The plan must be sufficient to determine the erosion control measures necessary to prevent soil loss during construction as well as after project completion. 88 (b) The plan shall include, as a minimum, the following information: (1) Map of the entire site showing existing details and contours of the property using at a maximum ten feet contour intervals and a scale of 1" = 100'. (2) Supplemental map(s) of area(s) to be graded showing existing details and contours at five foot intervals where terrain will not be modified and proposed details and contours of two foot intervals where terrain modification is proposed, using a scale of 1" = 20'. (3) An investigation of the effects of high intensity rain storm (100 year return frequency storm according to U.S. Department of Commerce Weather Bureau Frequency Curves) evaluating how the proposed drainage system will handle the predicted flows. Include effects of drainage areas outside the development which drain through the subject area and the anticipated flow and handling of the drainage leaving the development. (4) History, including frequency and duration of prior flooding. (5) Location of any existing building or structures and the approximate location of any proposed buildings or structures on the areas to be developed and any existing buildings or structures on land of adjacent owners which are within 100 feet of the property or which are on the land of adjacent owners beyond said distance but may be affected by the proposed development. (6) The direction of proposed drainage flow and the approximate grade of all streets (not to be construed as the grades used for the final street design). 89 (7) Detailed plans and locations of all surface and subsurface drainage devices, walls, dams, sediment basins, storage reservoirs and other protective devices to he constructed with or as a part of the proposed work, together with a map showing drainage areas, and the complete drainage network including outfall lines and natural drainageways which may be affected by the proposed project. Include the estimated runoff of the areas served by the proposed drainage system. (8) A description of the method to be used in obtaining fill to be used on the site and the site of acquisition of such fill. (9) A description of methods to be employed in disposing of soil and other material to be removed from the site, including the location of the disposal site. (10) Plan showing temporary erosion control measures to prevent erosion during the course of construction. (11) A schedule showing when each stage of the development will be completed, including the total area of soil surface which is to be disturbed during each stage and estimated starting and completion dates. The schedule shall be drawn to limit the time that soil is exposed and unprotected to the shortest possible period. In no event shall the existing "natural" vegetation or ground cover be destroyed, removed, or disturbed more than 15 days prior to commencing grading for development as scheduled. (c) A verified written statement by the person or firm preparing the grading and drainage plan identifying any grading and drainage problems to development and further stating in his professional opinion, the ability of the proposed plan to mitigate 90 and/or eliminate said problems in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use or stability of a public way or drainage channel, and adverse impact on the natural environment. 4. Vegetation preservation and protection plan. (a) Vegetation shall be removed only when absolutely neces- sary, i.e., for buildings, filled areas, roads and Fuel Breaks. Every effort shall be made to conserve topsoil which is removed during construction for later use on areas requiring vegetation or landscaping, i.e., cut and fill slopes. (b) All areas of excavation (cut or fill) attendant to new development shall be sufficiently revegetated to assure that they are protected from erosion due to normal wind or surface water conditions. Vegetation sufficient to stabilize the soil shall also be established on all disturbed areas (including lots which may be subject to future grading) as each stage of grading is completed. Disturbed areas not contained within lot boundaries shall be protected with adapted, fire-resistant species of perennial vegetative cover after grading and improvement related to construction is completed. Such vegetation should be in place and of sufficient coverage and maturity to assure that the required protection is existent prior to the release of the improvement bond. It should be further assured as to duration and establishment by a minimum of a two-year warranty. The new vegetation shall be equivalent to or exceed the amount and erosion control characteristics of the original vegetation cover. (c) The property owner and subdivider/developer shall be fully responsible for any destruction of native vegetation proposed 91 for retention under the approved vegetation plan and shall be responsible for the replacement of such destroyed vegetation. Said duty shall continue from the first day of construction until the certificate of occupancy or completion is issued. During this time the property owner and subdivider/developer shall be strictly liable for its own actions and those of its employees or subcontractors. A bond in the amount specified in the approved vegetation plan shall be posted prior to issuing permit to ensure completion of the vegetation plan. (d) A vegetation plan and report shall be prepared by a person or firm qualified by training and experience to have expert knowledge of the subject and shall include the following: (1) Survey of existing trees, large shrubs and ground covers; (2) Plan for the proposed revegetation of the site detailing existing vegetation to be preserved, new vegetation to be planted and any modifications to existing vegetation; (3) Plan for the preservation of existing vegetation during construction activity; (4) Vegetation maintenance program including initial and continuing maintenance necessary; (5) Determination of proposed bond necessary to insure soil stabilization. Bond should be provided in an amount sufficient to pay cost of grading, planting and maintenance necessary to stablilize the soil in the event the permittee fails to complete the same. The bond need not cover the expense of items which would beautify the terrain beyond its natural condition, but only work 92 necessary to restore the terrain to the relative stability of its previous state. (e) A verified written statement by the person or firm preparing the vegetation plan and report identifying any vegetation problems to development and further stating in his professional opinion, the ability of the proposed plan to mitigate and/or eliminate said problems in a manner as to prevent hazard to life, hazard to property, adverse affects on the safety, use, or stability of a public way or drainage channel, and adverse impact on the natural environment. 5. Fire protection report. A fire protection report shall be prepared to assess fire probability and potential hazards by a person or agency qualified by training and experience. Elements of the report should include the following: (1) The width and approximate location of any easements required for access of fire protection equipment; (2) Agreements, if any, entered into by the applicant and a fire protection entity or other government agency that could have concerns about fire probability (State & Federal agencies); (3) The approval of the development design and fire protection measures by the fire protection entity; (4) A letter from the chief of the Salt Lake City Fire Department stating: (i) Fire flow recommendation by insurance service organization. (ii) The existing fire flow capability or the fire flow capability proposed to serve the project. 93 6. Access to public and private property report. A report assuring that there is provision made for dedicated rights-of-way to provide access to public or private land adjacent to the area proposed for development. These rights-of-way shall be designed and constructed to standards acceptable to the City Engineer. No access will be allowed to be constructed if the terrain is too steep or unsuitable for use but the right-of-way may, nevertheless, be required to be dedicated by the Planning Commission. 7. Notification of adjacent landowners (public or private). Owners of adjacent lands which may be impacted by the proposed development shall be notified of a request for preliminary approval and given an opportunity to appear before the Planning Commission prior to final approval when it reviews the development proposal. This process will help to ensure against future boundary and use conflict to avoid "land locking" property, therefore creating a situation beneficial to neither the public nor the private sector. 8. Flood Plain regulations. Where applicable under chapter 8 of this Title, site development activities shall comply with said Flood Plain regulations. SECTION 47-5-4. GRANTING PERMIT. To further the specific purposes of this ordinance as set forth in Section 47-1-4, the following procedures are established: 1. Referrals. The application shall be referred by the Building Official to the City Engineer and Planning Director for review. Further, applications may also be referred to the Utah Geological and 94 Mineral Survey and other appropriate advisors for comments and recommendations as deemed necessary or appropriate. 2. Submission to Planning Commission. Upon completion of their review, the City Engineer and Planning Director shall prepare and forward their reports with recommendations to the Planning Commission for its considerations according to Section 47-6-4. 3. Issuance. Upon approval by the Planning Commission and subject to any terms or conditions thereof, the Building Official shall proceed to issue the site development permit. Any appeal of a decision by the Planning Commission must comply with Section 47-6-5. SECTION 47-5-5. INSPECTIONS. 1. Inspection schedule. At the time a site development permit is issued, the Building Official shall establish the stages of development at which inspections required by Section 47-4-5 shall be made. In order to obtain inspections, the permittee shall notify the City of readiness at least 24 hours before said inspection is to be made. 2. Conformity to plans. The Building Official shall be responsible to arrange for required inspections by appropriate inspectors who shall either approve that portion of the work completed or shall notify the permittee wherein the same fails to comply with this Title. Where it is found by inspection that conditions are not substantially as stated or shown in the site development permit applications, the inspector shall stop further work until the work conforms to the approved plan or approval is obtained for revised plans. 95 3. Abatement of hazardous conditions. (a) If, at any stage of site development, the Building Official determines by inspection that the work is creating hazardous conditions, he may suspend the work until provisions for abatement and/or correction are completed as set forth in Section 47-5-6(5) . SECTION 47-5-6. GRADING AND EROSION CONTROL DESIGN STANDARDS AND REGULATIONS. All subdivision improvement work shall be accomplished in conformance to the following grading and erosion control design standards and regulations: 1 . Hours of operation. All grading operations in or contiguous to residential neighborhoods shall be carried on between the hours of 7:00 a.m. to 5:30 p.m. The Building Official may waive this require- ment if it is shown that by restricting the hours of operation it would unduly interfere with the development of the property and it is shown that the neighboring properties would not be adversely affected. 2. Dust and dirt control . All graded surfaces of any nature shall be dampened or suitably contained to prevent dust or spillage on City streets or adjacent properties. Equipment , materials and roadways on the site shall be used or treated so as to cause the least possible annoyance due to dirt, mud, or dust conditions. 3. Undevelopable slopes. Any natural slopes identified on a Slope Classification Map of forty (40) percent or greater shall be designated undevelopable area. Said slope, if retained within the subdivision shall be designated and maintained as common area. In no event shall streets traverse such slopes. 96 4. Finished cuts and slopes. Limitations shall he applied to the extent of cut and fill slopes to minimize the amount of excavated surface or ground area exposed to potential erosion or settlement. (a) The exposed or finished cuts or slopes of any fill or excavation shall be smoothly graded. (b) All cut and fill slopes shall be recontoured and revegetated by the permittee in accordance with an approved plan. (c) Cut or fill slopes shall normally be limited to fifteen (15) feet in vertical height. However, upon review and favorable recommendation of the City Engineer, the Planning Commission may recommend that the Mayor approve cut or fill slopes exceeding fifteen (15) feet provided that such variations be allowed on a limited basis after thorough review of each request, and only when balanced by offsetting improvements to the overall aesthetic, environmental and engineering quality of the development. (d) No excavation creating a cut face and no fill creating an exposed surface shall have a slope ratio exceeding one and one-half horizontal to one vertical. EXCEPTION: (1) No slopes shall cut steeper than the bedding plane, fracture, fault or joint in any formation where the cut slope will lie on the dip of the strike line of the fracture, bedding plane, fault or joint. (2) No slopes shall be cut in an existing landslide, mud flow or other form of naturally unstable slope except as recommended by a qualified geological engineer. (3) Where the formation is exposed above the top of the 97 cut which will permit the entry of water along bedding planes, this area shall he sealed with a compacted soil blanket having a minimum thickness of two feet. The soil for this blanket shall be relatively impervious and shall be approved by the soils engineer or engineering geologist. (4) If the material of a slope is of such composition and character as to be unstable under the anticipated maximum moisture contents, the slope angle shall be reduced to a stable value or retained by a method approved by the City Engineer, and certified as to its stability by the soils engineer or geologist. Said retaining method shall include design provisions which are: (i) Conducive to revegetation for soil stability and visual impact. (ii) Used for selected areas of the site and not as a general application. (iii) Limited to tiers each of which is no higher than six (6) feet, separated by plantable terraces a minimum of two feet in width. (iv) Any retaining system shall remain and be maintained on the lots until plans for construction are approved and a building permit is issued. The plans shall include provisions to integrate driveway access to the lot, while maintaining the structural integrity of the retaining system. (e) The Building Official may require the slope of a cut or fill be made more level if at any time it is found that the material being cut or the fill is unusually subject to erosion, static or 98 dynamic instability or if other conditions make such requirements necessary for stability. 5. Abatement of Hazardous Conditions. (a) If, at any stage of grading, the Building Official or City Engineer determines by inspection that the nature of the formation is such that further work as authorized by an existing permit is likely to imperil any property, public way, watercourse or drainage structure, the Building Official or City Engineer shall require, as a condition to allowing the work to proceed, that reasonable safety precautions be taken as are considered advisable to avoid likelihood of such peril. Such precautions may include, but shall not be limited to any of the following: specification of a more level exposed slope: construction of additional drainage facilities, berms, or terraces; compaction or cribbing; installation of plant materials for erosion control; and reports of a registered soils engineer and/or of an engineering geologist whose recommendations may be made requirements for further work. Such a requirement by the Building Official or City Engineer shall constitute a required change order in the work to be performed under permit. Said changes may be required to be reflected in amended plans. (b) Where it appears that damage from storm drainage may result from work performed hereunder, such work may be stopped and the permittee required to take such measures as may be necessary to protect adjoining property or the public safety. On large operations or where unusual site conditions exist, the Building Official or City Engineer may specify the time at which grading may proceed and the time of completion or may require that the operation be conducted in 99 specific stages so as to insure completion of protective measures or devices prior to the advent of seasonal rains. 6. Fill Material and Compaction. (a) Fill material. All fill shall be earth, rock or other inert materials free from organic material and free of metal, except that topsoil spread on cut and fill surfaces may incorporate humus for desirable moisture retention properties. Fill not meeting the definition above shall be placed only in approved public or private landfills or other approved deposit sites. (b) Back fillings. Any pipe trench or trenching, or excavation made in any slope of any excavated or filled site, shall be backfilled and compacted to the level of the surrounding grade. (c) Compaction of fills. Unless otherwise directed by the Building Official or City Engineer, all fills governed by this ordinance, intended to support buildings, structures, or where otherwise required to be compacted for stability, shall be compacted, inspected and tested in accordance with the following provisions. (I) The natural ground surface shall be prepared by removal of topsoil and vegetation, and, if necessary, shall be graded to a series of terraces. If fill material unacceptable under (a) above is placed on site or the fill is not placed according to procedures of this Title then it must be removed. (2) The fill shall be spread and compacted in accordance with the City Engineer's approved standards. (3) The moisture content of the fill material shall be controlled at the time of spreading and compaction to obtain required maximum density. 100 (4) A written report of the completed compaction, showing location and depth of test holes, materials used, moisture conditions, recommended soil bearing pressures, and relative density obtained from all tests, prepared by a Civil Engineer or Soils Engineer licensed by the State of Utah or Testing Laboratory shall be submitted to the Building Official, who will submit it to the City Engineer for review. (5) The Building Official or City engineer may require additional tests or information, if, in his opinion, the conditions or materials are such that additional information is necessary, and may modify or delete any of the above listed requirements that, in his opinion, are unnecessary to further the purpose of this Title. 7. Erosion control and revegetation. All cut and fill surfaces created by grading shall be planted with a ground cover that is of a drought resistant, variety. Topsoils are to be stockpiled during rough grading and used to cut and fill slopes. Cuts and fills along public roads are required to be landscaped according to an approved plan, as outlined in Section 47-3-5(4). All plant materials must be approved by the Parks Department and Building Official prior to subdivision approval. 8. Drainage. (a) Adequate provisions shall be made to prevent any surface waters from damaging the cut face of an excavation or any portion of a fill. All drainage ways and structures shall carry surface waters without producing erosion to the nearest practical street, storm drain or natural water course approved by the City Engineer. The City Engineer may also require drainage structures to be constructed, or installed, as necessary to prevent erosion damage or to prevent saturation of the fill or material behind cut slopes. 101 (b) An excess storm water passage shall be provided for all storm water storage areas. Such passage shall have capacity to convey through the proposed development the excess storm water from the tributary watershed. The capacity of such excess storm water passages shall be constructed in such a manner as to transport the peak rate of run-off from a 100 year return frequency storm assuming all storm sewers are inoperative, all upstream areas are fully developed in accordance with the City's current land use plan, and that antecedent rain fall has saturated the tributary watershed. (c) No buildings or structures shall be constructed within such passage, however, streets, parking lots, playgrounds, park areas, pedestrian walkways, utility easements and other open space uses shall be considered compatible uses. In the event such passageway is reshaped or its capacity to transport excess storm water is otherwise restricted during or after construction, the Building Official or City Engineer shall notify the agency, party or parties causing said restriction to remove the same, and set a reasonable time for its removal. If said parties refuse to or are unable to comply with said order, the Building Official or City Engineer shall cause said restrictions to be removed at the expense of said parties. Where a proposed development contains existing natural drainage, appropriate planning measures shall be undertaken or required to preserve and maintain said natural drainage as part of the excess storm water passage. (d) Notwithstanding any other provisions of this ordinance, whenever in the judgment of the Building Official or City Engineer a condition occurs in a storm water storage area or passageway that 102 creates a dangerous and imminent health and safety hazard, the Building Official or City Engineer shall order such action as shall be effective immediately or in the time and manner prescribed in the order itself. 9. Surcharges shall consist of earth material and shall be applied in such a manner as to have no effect on soil stability on adjacent or neighboring properties. 10. No structure shall be located over a fault. Determination of the appropriate setback distance from the fault shall be made using the data compiled in the geological report as per Section 47-5-3 (2), by the person or firm who prepared the geological report. SECTION 47-5-7. SPECIAL CANYON SITE DEVELOPMENT STANDARDS. In addition to other applicable site development procedures and standards of this Title, due to the sensitive character of the natural environment in canyons, the following minimum standards which may be more restrictive shall apply to all development in those canyon areas zoned Residential Canyon "R-lC" and Business Canyon "6-3C". 1. Hydrology. (a) All development including subdivisions, planned or grouped developments and commercial development shall meet the drainage and flood control regulations established by the City Engineer. (b) No structures, cuts, fills, significant modification of the terrain, hardsurfacing or any activity which would cause deterioration of the natural terrain or vegetation shall be permitted 103 within 100 feet of the streambank (defined as the mean high water line), and said area shall be designated an undevelopable area. (c) Additional undevelopable streamside areas containing extremely severe physical conditions such as steep slopes, may be declared undevelopable by the Planning Commission or Building Official as required by the City Engineer to provide additional safety buffer zones. (d) Structures intended to bridge a stream shall be of a design which meets the standards of the City Engineer. 2. Grading. (See also Section 47-5-6.) (a) All excavated material shall be removed from the site or placed behind retaining walls or otherwise replaced, recontoured and revegetated. (b) All cut and fill slopes shall be recontoured and revegetated by the permittee in such manner as to blend with the natural terrain as specified in this Title. (c) No cuts or fills with a vertical height exceeding 15 feet shall be permitted. (d) Not more than 5 percent of a lot or POD site shall be left with a slope steeper than the natural grade of the ground or steeper than 20 percent, whichever is greater. (e) The total area of all cuts and fills other than the enclosed floor area of the structure(s) shall not exceed 10 percent of the lot or PUD site. (f) Public streets shall not traverse or disturb slopes of 30 percent or steeper. 104 CHAPTER 6 INTERPRETATION, PERMIT PROCEDURE, APPEALS, GROUNDS FOR DENIAL AND ENFORCEMENT ACTIONS. SECTIONS: 47-6-1. Interpretation - Conflicts 47-6-2. Retention of Plans 47-6-3. Expiration, Renewals and Extensions of Permit 47-6-4. Action by Planning Commission 47-6-5. Appeals 47-6-6. Grounds for Denial 47-6-7. Prohibited Activities 47-6-8. Permit or Approval Revocation 47-6-9. Property Owner Responsibility 47-6-10. Violations and Penalties 47-6-11. Severability SECTION 47-6-1. INTERPRETATION - CONFLICTS. 1. Minimum requirements. In their interpretation and application, provisions of this ordinance shall be held to be minimum requirements, except where expressly stated to be maximum require- ments. No intent is made to impair, or interfere with, any private restrictions placed upon any property by covenant or deed; provided, however, that where this ordinance imposes higher standards or greater restrictions the provisions of this Title shall govern. 2. Application of most restrictive standard. Whenever any provision of this Title or any other provisions of law, whether set 105 forth in this Title or in any other law, ordinance or resolution of any kind, impose overlapping or contradictory regulations over the development of land, the most restrictive standards or requirements shall govern. SECTION 47-6-2. RETENTION OF PLANS. Plans, specifications and reports for all site development submitted to Salt Lake City for approval shall be retained by Salt Lake City. SECTION 47-6-3. EXPIRATION, RENEWALS AND EXTENSIONS OF PERMIT. Every site development permit or approval shall expire by limitation and become null and void if the work authorized by such permit has not been commenced within one hundred and eighty (180) days, or is not completed within one (1) year from date of issuance. Extensions and renewals under Chapters 4 and 5 shall be governed by Section 303 of the Uniform Building Code. However, the Building Official may not approve any modification to approved plans without prior approval of the Planning Commission conducted under Section 47-6-4. SECTION 47-6-4. ACTION BY PLANNING COMMISSION. 1. Consideration of application or plans. Whenever the Planning Commission's review and/or approval of proposed plans or applications involving site development activities is required under this Title, the matter shall be placed on the Planning Commission's agenda at a regularly scheduled meeting. Said meeting shall be conducted in conformance with the applicable requirements of the Open Meetings Act. A copy of said agenda may be sent to the applicant, subdivider/ developer, and to each adjacent property owner of record as a 106 courtesy. Failure to mail or receive such notice shall not be a fatal defect. In its discretion, the Planning Commission may also set and hold a special hearing on the pending application where the public and interested parties may have an opportunity to offer testimony. In such an event, notices of the public hearing shall be sent at least seven (7) days prior to the date of the hearing by the Planning Department to parties specified above, together with such other additional property owners or parties as the Director, in his discretion, may believe to have a substantial interest in, or be substantially affected by the proposed work. The Planning Commission may also direct that the notice of the public hearing be advertised by publication. 2. Action upon application. Upon completion of a hearing, if required, and after consideration of the application, recommendations of the City Engineer, Building Official or Planning Director and evaluation of compliance with the provisions of this Title, the Planning Commission shall: (a) Upon a finding that the plan as it stands, or with minor modifications, can comply with the provisions of this Title. (1) Approve the application as submitted, or (2) Approve a modified plan imposing such reasonable terms or conditions as may be deemed necessary to substantially secure the objectives of this Title; or (b) Upon a finding that the work proposed by the application is contrary to the purposes or provisions of this Title or factors set forth in Section 47-6-6. as grounds for denial, the Planning Commission shall disapprove the application for a site development permit or approval. 107 3. Notice of decision - appeal. Applicant shall be informed by letter of the Planning Commission's action. Said action is subject to administrtive appeal within thirty (30) days of the date of such written notice as provided in Section 47-6-5. SECTION 47-6-5. APPEALS. 1. Time limitation for notice of appeal. Any applicant aggrieved by a determination of any administrative official may appeal such determination to the Planning Commission by filing a written notice of appeal with the Planning Commission secretary within thirty (30) days after date of the notification of the administrative official's determination. Any applicant aggrieved by a determination of the Planning Commission may appeal such determination to the Mayor by filing a written notice of appeal with the City Recorder within thirty (30) days after date of notice of the Planning Commission determination. The City Recorder shall then schedule the matter for hearing before the Mayor. Said hearing shall be scheduled at least ten (10) days prior to the date of hearing to enable the City Recorder to give ten (10) days notice by mail to the Planning Commission, applicant, and any interested party who has submitted for such purpose a self-addressed, stamped envelope. Advertised publication of the Notice of Hearing is not required. The administrative decision of the Mayor shall be final and shall be reduced to writing and mailed to the applicant and Planning Commission. 2. Effect of administrative appeal. In the event of a notice of an appeal pursuant to the provisions above, the effect of such filing 108 of the notice shall act to stay any and all further action and work pending the determination of the matter on administrative appeal. 3. Nature of hearing. Appeal of an administrative determination shall be a de novo proceeding before the Planning Commission. A further appeal of the Planning Commission's decision before the Mayor is not a de novo proceeding. The administrative appellate review focus of the Mayor should be to objections, exceptions, or alledged errors in the action of the Planning Commission, which were unreasonably related to the application or plans before it. Based on the Mayor's administrative findings, the Mayor may affirm, reverse, or otherwise modify the decision of the Planning Commission and may impose as conditions to approval such conditions as are deemed reasonably necessary to secure the objectives and compliance with the provisions of this Title. The Mayor shall reduce his action upon the administrative appeal to writing within thirty (30) days of the date of the hearing. Should the Mayor fail to render his decision upon the application within such thirty (30) days, the action of the Planning Commission shall be deemed to be affirmed. 4. Judicial relief - time limitation. Any person seeking judicial review of the Mayor's action by certioari must file an appropriate petition for judicial review with a court of competent jurisdiction within thirty (30) days of the date of the Mayor's decision. SECTION 47-6-6. GENERAL GROUNDS FOR DENIAL. Factors, in addition to deviation from provisions of this Title, which may be grounds for denial of a site development permit or approval shall include, but not be limited to: 109 1. possible or potential saturation of fill and/or unsupported cuts by water (both natural and/or domestic); 2. run-off surface waters that produce unreasonble erosion and/or silting of drainage ways; 3. subsurface conditions (such as rock strata and faults, soil or rock materials, types of formations, etc.) which when disturbed by the proposed site development activity, may create earth movement and/or produce slopes that cannot be landscaped; and/or 4. result in excessive and unnecessary scarring of the natural landscape through grading or removal of vegetation. SECTION 47-6-7. PROHIBITED ACTIVITIES. 1. Removal of Topsoil. It shall be unlawful to remove topsoil for purposes of resale when unrelated to a bonafide purpose of site development contemplated under this Title. The provisions of this Title shall not be construed as permitting the removal of topsoil solely for resale. 2. Nuisance. It shall be unlawful to create or maintain a condition which creates a public or private nuisance. After notice by the City, owners shall be strictly responsible to take any necessary action to correct or abate such nuisance. Further, this Title shall not be construed to authorize any person or owner to create or maintain a private or public nuisance upon real property, and compliance with the provisions of this Title shall not be a defense in any action to abate such nuisance. 110 SECTION 47-6-8. PERMIT OR APPROVAL REVOCATION. 1. Hearing required. In the event the Building Official or the City Engineer requests that a site development permit or approval be permanently suspended or revoked, they shall formally request a revocation hearing before the Planning Commission in compliance with the following procedures: (a) Request. The request shall specify the grounds for complaint or details of deviation with terms and conditions of the approval that justify the proposed permit or approval revocation or suspension. (b) Public Hearing. The Planning Commission shall hold a formal hearing to consider requests and recommendations for permanent revocation or suspension of permits at the next regularly scheduled meeting of the Planning Commission, at which service of the required notice can be satisfied. (c) Notice. The Planning Commission shall cause notice of the time and place of the scheduled hearing to be prepared. Such notice shall be delivered by certified mail or personal service upon the permittee at least five (5) days prior to the date set for the hearing. At any such hearing, the permittee shall be given an opportunity to be heard, and he may call witnesses and present evidence on his behalf. Upon conclusion of such hearing, the Planning Commission shall determine whether or not the permit shall be suspended or revoked, and any necessary or appropriate conditions which must be satisfied prior to the renewal or extension of said permit, including any necessary corrective measures to be completed as provided in (2) below. 111 2. Planning Commission determination. Upon the conclusion of the required hearing and its deliberations thereon, should the Planning Commission find that the permittee or his agents have violated the terms of the permit or provisions of the Title, have conducted or desire to carry out such site development activity in such a manner which unreasonably adversely affects the health, welfare or safety of persons residing or working in the vicinity of the site, or have caused the same to be done, the Planning Commission may, as it deems appropriate; (a) require necessary corrective measures to be undertaken and completed at permittee's expense; (b) require reimbursement to City for unusual costs incurred by the necessitation of enforcement action including costs of inspections, mailings, expert technical assistance, etc.; (c) continue suspension of all work contemplated or associated with the permit permanently until corrective requirements and/or original conditions are satisfied; (d) and/or if circumstances of work conducted have resulted in factors which would have been grounds for denial of the permit, the Planning Commission may order such necessary actions as required to restore the site insofar as possible, to the pre-existing conditions, and revoke the site development permit. If so revoked, and where appropriate, the Planning Commission may preclude acceptance of any site development application for the same site for a period not to exceed twelve months. 3. Appeal. The decision of the Planning Commission on a request for permanent suspension or revocation of a site development permit or 112 approval under this Title may be appealed by the permittee, Building Official or City Engineer to the Mayor as provided in Section 47-6-5. SECTION 47-6-9. PROPERTY OWNER RESPONSIBILITY. Property owners are responsible to maintain their property in a safe, nonhazardous condition and to otherwise comply with the provisions of this Title and applicable ordinances. Failure of city officials to observe or to recognize hazardous or unsightly conditions, or to recommend denial of the site development permit, or the action of the Planning Commission in denying or approving said permit, shall not relieve the permittee, or property owner from responsibility for the condition or damages resulting therefrom. Nor shall such action result in the City, its officers or agents, becoming responsible or liable for conditions and damages resulting therefrom. SECTION 47-6-10. VIOLATIONS AND PENALTIES. 1. Violation of Title. It shall be unlawful for any person to construct, enlarge, alter, repair or maintain any grading, excavation or fill, or cause the same to be done, contrary to or in violation of any provisions of this Title. 2. Obstruction prohibited. It shall be unlawful for any person to willfully or carelessly obstruct or injure any public right-of-way by causing or permitting earth or rock to slump, slough or erode off private property onto the public right-of-way. 3. Flooding. It shall be unlawful for any person to willfully or carelessly obstruct or injure any public right-of-way by causing or permitting flow or seepage of water, or by willfully or carelessly 113 causing or permitting water under his/her control, possession or supervision to escape in any manner so as to injure any street or public improvement. 4. Misdemeanor penalty. Any person violating any of the provisions of this Title shall be deemed guilty of a misdemeanor and each such person shall be deemed guilty of a separate offense for each and every day or portion thereof during which any violation of any of the provisions of this ordinance is committed, continued, permitted or maintained. Upon conviction of any such violation, such person or party may be imprisoned for a period not exceeding six (6) months or be fined in the amount not exceeding two hundred ninety-nine dollars ($299) if the party is an individual, or the greater amount of two thousand dollars ($2,000) in the event the party is a corporation, association, or partnership, or be both so imprisoned and fined. SECTION 47-6-11. SEVERABILITY. 1. Severability. If any section, subsection, sentence, clause or phrase of this Title is for any reason held to be invalid or unconstitutional by the decision of any court of competent jurisdiction, such decision shall not affect the validity of the remaining portions of this Title. The City Council hereby declares that it would have passed this Title and each section, subsection, sentence, clause and phrase thereof, irrespective of the fact that any one or more of the sections, subsections, sentences, clauses or phrases hereof be declared invalid or unconstitutional. 2. Limitation to applied facts. If the application of any provision or provisions of this Title to any person, property, or 114 circumstances is found to be unconstitutional or invalid or ineffec- tive in whole or in part by any court of competent jurisdiction, or other competent agency, the effect of such provision shall be limited to the person, property or circumstances immediately involved in the controversy, and the application of such provision to other persons, properties and circumstances shall be unaffected unless the court specifically rules otherwise. CHAPTER 7 ENERGY EFFICIENT DESIGN INCENTIVES (Reserved) 115