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HomeMy WebLinkAboutORD151ORDINANCE NO.151 AN ORDINANCE OF THE MAYOR AND CITY COUNCIL OF THE CITY OF APACHE JUNCTION,ARIZONA,ADDING CHAPTERS 3 &4 TO THE CITY CODE OF APACHE JUNCTION (VOLUME I I -LAND DEVELOPMENT CODE)PERTAINING TO CONSTRUC- TION ACTIVITIES IN PUBLIC RIGHTS -OF -WAY IN WHICH CHAPTER 3 CONTAINS SPECIAL PROVISIONS FOR CONSTRUCTION OF STREET IMPROVEMENTS,AND CHAPTER 4 CONTAINS SPECIAL PROVISIONS FOR INSTALLATION OF UNDERGROUND UTILITIES. BE IT ORDAINED BY THE MAYOR AND CITY COUNCIL OF THE CITY OF APACHE JUNCTION,ARIZONA,THAT: SECTION I IN GENERAL 1.Those certain documents which are made a public record by Resolution No.82-34 and entitled "Chapter 3,Special Provisions for Construction of Street Improvements"and "Chapter 4,Special Provisions for Installation of Underground Utilities"are hereby added to "The Code of the City of Apache Junction,Volume II,Land Development Code"as Chapters 3 and 4 respectively,and henceforth are adopted and made a part thereof as i f fully set out in this ordinance. 2.a.That certain document referred to as "Chapter 3,Special Provisions for Construction of Street Improvements,"consisting of the following articles: b. Article 1 Article 2 Article 3 Article 4 Compaction Contraction and Expansion Joints for Curbs,Gutter, and Sidewalks Testing •Materials That certain document referred to as "Chapter 4,Special Provisions for Installation of Underground Utilities,"consisting of the following articles: Article I Article I I Article III Article IV Article V Article VI Specifications and Details Plans,Specifications,Engineering Excavation,Backfill,and Compaction Pavement Cutting and Restoration Surface Restoration of Graveled or Earth Surface Roads Miscellaneous SECTION I I PROVIDING PENALTIES FOR THE VIOLATION THEREOF Any person,firm,or corporation,whether as principal,owner, agent,tenant,employee,or otherwise,who violates any provisions of this ordinance or violates or fails to comply with any order or regulation made hereunder,shall be guilty of a misdemeanor and upon conviction thereof shall be punishable by a fine of not more than one -thousand dollars ($1,000)or by a term not exceeding six (6)months or by both such fine and imprisonment,and each day's continuance of a violation shall be deemed a separate offense. SECTION III REPEAL OF CONFLICTING ORDINANCES All ordinances and parts of ordinances in conflict with the provisions of this ordinance or any part of the code adopted herein by reference are hereby repealed. SECTION IV PROVIDING FOR SEVERABILITY If any section,sub -section,sentence,phrase,clause,or portion of this ordinance or any part of the code adopted herein by reference is for any reason held to be invalid or unconstitutional by the decision of any court of competent jurisdiction,such decision shall ORDINANCE NO.151 PAGE TWO not affect the validity of the remaining portions thereof. PASSED AND ADOPTED by the Mayor and City Council of the City of Apache Junction,Arizona,this 6th day of July 19 . ATTEST: c -- Kathleen Connelly City Clerk APPROVED AS TO FORM: City Attorney Wendell J.ClarWT----— Mayor CHAPTER 3 CITY CLERK'S OFFICE r • CITY OF APACHE JUNCTION SPECIAL PROVISIONS FOR CONSTRUCTION OF STREET IMPROVEMENTS 1.COMPACTION: copy DO NOT REMOVE - A.Subgrade - Top six inches (6") of pavement and curb subgrade shall be scarified, loosened and compacted to a minimum of ninety-five percent (95%) of the maximum density of the material.Sidewalk subgrade shall be compacted to a minimum of eighty-five percent (85%) of the maximum density of the material. B.Base Material - The base course shall not be placed on subgrade until compaction tests of the subgrade have been provided to the city and found to meet the specifications contained herein.Base material shall be compacted, full depth, to a minimum of one hundred percent (100%) of the maximum density of the material being used. C.Asphalt concrete pavement shall be compacted to ninety-five percent (95%) of the specific gravity of test specimens compacted by the 75 blow method of ASTM D-1559.A rolling pattern may be established for this required density only with the approval of the City Engineer. D.Requests for variances from A and B above will require certified material tests and designs. 2.CONTRACTION AND EXPANSION JOINTS FOR CURBS, GUTTER & SIDEWALKS. Expansion joints shall conform to Section 729 of the MAC Standard Specifications and placed only at driveways and at ends of curb returns. Contraction joints shall conform to MAC Details 230 and be placed at twelve -foot (12') intervals on straight runs and within curb returns. 3.TESTING. A.All requirements of this section shall be performed under the supervision of a Civil Engineer registered in the State of Arizona.All test reports are to be submitted to the City Engineer.Each report shall indicate the location at which the test was made, the date of the test, type and source of material tested, test designation being used and the name of the person performing the test. B.The following soil tests are the minimum required for pavement design purposes: 1.Samples shall be taken to a minimum depth of eight (8) inches below proposed subgrade elevation. 2.One (1) test per eight hundred (800) lineal feet with at least one test per proposed street.An additional test may be ordered by the City Engineer at apparent visible changes in soil type. 3.Each sample shall have a sieve analysis per AASHO T27 with results reported as percent passing #200 sieve, plus a plasticity index per AASHO T91. 1. 4.Test results shall be forwarded to the City Engineer together with the paving plans. 5.Additional tests may be required by the City Engineer for purposes of assurance of design information in cases of submittal of pavement de- signs other than the Standard. C.The following compaction tests shall be performed: 1.Pavement subgrade - One (1) test per eight hundred (800) lineal feet of roadway with at least one (1) test per street, minimum. 2.Curb subgrade - One (1) test per five hundred (500) lineal feet of curb with at least one (1) test per street, minimum. 3.Base material - One (1) test per eight hundred (800) lineal feet of roadway with at least one (1) test per street, minimum. 4.Asphalt pavement - One (1) test per eight hundred (800) lineal feet of roadway with at least one (1) test per street, minimum. Maximum densities for the materials being compacted shall be determined in the laboratory for the same materials in accordance with AASHO designa- tion T-99.Field density tests shall be performed in accordance with AASHO designation T-147. D.The following daily concrete test cylinders shall be taken: 1.Two (2) sets per pour over four (4) hours pouring time, two (2) six inch (6") cylinders per set. A seven (7) day break shall be made for each set.When the seven (7) day break is below 1800 PSI a twenty-eight (28) day break shall be made.At least one (1) twenty-eight (28) day cylinder shall be broken for each project with more than forty (40) cubic yard of poured concrete. E.The following tests shall be taken for asphaltic concrete: 1.Gradation - Expressed as % by weight passing, using AASHO T-30. 2.Asphalt content - Expressed as % by weight of total mixed material, sampled and tested per AASHTO T-164 and T-168. 3.Compaction - As previously specified in paragraph VII - C above. A minimum of one (1) sample per 1200 tons of material, but no less than one (1) sample from each source is required for each day's paving.Addi- tional samples may be ordered by the City Engineer or Inspection Engineer whenever obvious visual changes occur in the mix. 4.MATERIALS: A.Base Material - To meet Maricopa Association of Governments (NAG) Speci- fications, Section 702.If "Select" material is used, the upper four inch (4") of base must be Aggregate Base Course.The total thickness shall be 2. determined by laboratory tests of the subgrade materials, with a minimum of six inches (6"). B.Asphaltic Concrete - To meet Maricopa Association of Governments (MAG) Specifications, Section 710.Minimum asphalt content shall be 5% unless otherwise approved in writing by the City Engineer. C.Seal Coat - A preservative seal, conforming to MAG Specifications, Section 718, shall be applied to the finished Asphaltic Concrete surface at the rate of 0.10 gallons of diluted mixture per square yard.The dilution shall be two (2) parts of the concentrate to one (1) part water.No sanding will be required. D.Concrete - Concrete for all structures, curb, gutter, sidewalks, driveway entrances, wash crossings and street related concrete construction shall be Class B, conforming to the applicable requirements of Section 725 of the MAG Standard Specifications. E.Reinforced Concrete Pipe - Shall meet MAG Standard Specifications, Section 735. NOTE:Contractor shall notify the Police Department and Fire Department 24 hours prior to completely closing any street. 5.PERMITS The Contractor shall secure a City Engineering Department Permit prior to start of any construction within public right of way.Three (3) sets of approved plans must be submitted with the application at least five (5) working days before work is scheduled to begin. 3. CHAPTER 4 CITY OF APACHE JUNCTION SPECIAL PROVISIONS FOR INSTALLATION OF UNDERGROUND UTILITIES I.SPECIFICATIONS AND DETAILS. CITY CLERK'S OFFICE COPY DO NOT REMOVE All work and materials shall conform to the current "Uniform Standard Specifications for Public Works Construction - Maricopa Association of Governments", subject to City of Apache Junction supplement, as these Uniform Standard Specifications apply to trench back- fill material, backfill compaction and roadway surface restoration, except as noted in these Special Provisions. In case of conflict between the Uniform Standard Specifi- cations and these Special Provisions, these Special Pro- visions shall govern. Other agency specifications for construction material or methods which are equal to the Uniform Standard Specifications, may be substituted as satisfactory alternates, only with prior written approval of the City Engineer -at no cost to the City of Apache Junction. II.PLANS,SPECIFICATIONS, ENGINEERING A.Preparation of plans, specifications, construction and inspection shall be performed under the super- vision of a Civil Engineer, registered in the State of Arizona and employed by the owner,except that plans prepared by utility companies for distribution of gas,electric power or for communication service need not be prepared by a registered Civil Engineer. B.Plans shall be submitted as outlined in the City of Apache Junction Development Guide, except as modi- fied by these Special Provisions.Profiles will be required on projects involving installation of sewer and underground irrigation lines in dedicated right- of-way.Power facilities must also be submitted in profile where the trade size of a single conduit exceeds six inches (6")in diameter or where multiple conduits including the concrete encasements are sixty (60) square inches or greater in cross-sectional area. In addition, s profiles may be required by the City Engineer in cases of possible alignment or grade con- flicts, cover problems or crossing conflicts.Plans may be submitted concurrently with the application for construction permit. 1. fIT.- -EUAVATION, BACKFILL AND COMPACTION :V Excavation - All excavation shall conform to the require- ments of Section 601 of the M.A.G. Standard Specifications, except as modified in these Special Provisions.Attention is called to necessary notification of all utilities. (Call Blue Stake - Tel. 263-1100). B.Backfill and Compaction 1.Materials:Backfill shall consist of sound earth material (other than open graded rock) free from con- crete, timber, asphalt pavement, organic material or other debris.When "select" material or "aggregate base course (A.B.C.)" is substituted or specified, it shall conform to the applicable specification of the M.A.G. Standard Specification. 2.Compaction a.That portion of the backfill from the bottom of the trench to twelve inches (12") compacted depth, over the top of the pipe or conduit shall be back- filled with ABC.This material shall be uniformly jetted to insure proper bedding of pipe. (Exception):Backfill around underground electric, water, and communication lines must meet the speci- fication of the responsible utility owner. b.For a trench under any existing or proposed pave- ment, curb, gutter, or sidewalk, or when the dis- tance from the edge of pavement of back or curb or sidewalk to the centerline of the trench is one foot (1') or less, the backfill shall consist of ABC or select material.The material from twelve inches (12") above the top of the pipe to two feet (2') below finished grade shall be compacted to not less than eighty-five percent (85%) of the maximum density of the material.The upper two feet (2') of the material shall be compacted to not less than ninety-five percent (95%) of the maximum density of the material, with the upper minimum ABC require- ment for roadway pavement compacted to not less than 100% of the maximum density of the material. c.For a trench in an unpaved road where the distance from the edge of the traveled way to the centerline of the trench is one-half (1/2) the depth of the trench or less, the backfill shall consist of ABC or select material.The material from twelve inches (12") above the top of the pipe to two feet (2') below finished grade shall be compacted to not less than 85% of the maximum density of the material. The upper two feet (2') of the material shall be compacted to not less than 95% of the maximum density of the material. 2. d.For a trench where the centerline is more than one foot from the edge of the exist- ing pavement, back of curb or sidewalk, or edge of the traveled way on an unpaved road, the material from twelve inches (12") above the top of the pipe to finished grade shall consist of sound earth material as previously speci- fied, compacted to not less than 85% of the maximum density of the material.Water settl- ing as defined herein is permissible. e.For trenches in alleys and other miscellaneous traveled ways, the backfill and compaction as per paragraph III. B.2.d. shall be followed. f.For trenches in utility easements the backfill may consist of sound earth material.Water settling as defined herein is permissible. g •Water settling as permitted herein shall be performed with lifts not exceeding five feet (5') in depth.The backfill shall be leveled, the trench flooded and the material jetted to: (1)Within one foot (1') of the pipe if the lift is five feet (5') or less from the top of the pipe, or (2)at least one foot (1') into the pre- vious lift if multiple lifts are nec- essary. Sufficient water must be used with a pressure of at least 30 p.s.i. to insure filling of all voids with backfill material.Intervals of jetting shall be not more than six feet (6 1 )* along the trench and transversely across the trench.The water shall not be shut off until the jet has been completely withdrawn from the material. h.Water settling is permitted in new subdivisions but no paving will be permitted over water settled trenches until compaction test results have been approved by the City Engineer. C.The minimum cover for utility lines shall be thirty- six inches (36"), other than direct burial cable which shall be twenty-four inches (24").The minimum cover for storm drainage or irrigation pipe shall be eighteen inches (18").Cover is defined as the difference in elevation between the top of the line or pipe and the ultimate gutter grade of the roadway.If paving is not completed within thirty (30) days after installation of the underground facilities, a temporary earth cover sufficient to meet the above requirements must be placed and maintained. For facilities outside the limits as defined in para- graph III.B.2.d. above, cover is defined as the difference in elevation between the top of the line or pipe and the natural or regraded ground surface whichever is lesser. D.TESTING. 1.Procedures. a.AASHTO T99 - Maximum density. b.AASHTO T147 - Field density. c.AASHTO T27 - Sieve analysis. 2.Frequency. The tests shall be made at the locations and depths specified by the City Engineer or his representative. A minimum of one set of tests will be required for each four feet (4') of trench depth for trenches within a paved road or within one half the trench depth measured from back of curb or edge of pavement to centerline of the trench.Otherwise, one set of tests will be required for each eight feet (8') of trench depth.The minimum number of passing tests per set anticipated for specification compliance may be estimated as follows: a.Pavement cut crossing - one (1) set of tests per crossing. b.Longitudinal pavement cuts or the centerline of the trench within one-half the trench depth as previously explained - one set of tests per three hundred feet (300') with one set of tests minimum. c.All other locations - one set of tests per four hundred feet (400') with one set of tests minimum.(Including unimproved (ungraded) right-of-way). 3.Tests may be taken at four foot (4') vertical incre- ments in the same vertical plane at the option of the inspection engineer.Copies of all test reports shall be identified as to project and location by the test- ing laboratory and forwarded to the inspection enginf who shall forward one set of all test results to the City Engineer.As an alternative, the trench may be backfilled with ABC Slurry, on a case -by -case basis with approval by the City Engineer. 4.At his discretion, the City Engineer may order load tests performed to determine the suitability and adequacy of backfill before placement of pavement. Such tests shall be performed with vehicle loaded to approximately eighteen thousand pound (18,000#) axle load.Excessive movement or settlement of backfill shall be cause for rejection of the work by the City.Initial load tests shall be at the expense of the City.If the work is rejected, load retests shall be at the expense of the owner or contractor. IV.PAVEMENT CUTTING AND RESTORATION (See M.A.G. Std. Detail 200) A.All cuts in asphalt or concrete pavement shall have saw cut or neat and straight edges.All transverse or diagonal pavement shall extend at least one foot (1') beyond either side of the trench.Excavated pavement material shall be removed from the site. B.Pavement cut replacement:The asphaltic material used for replacement of pavement cuts shall conform to the applicable M.A.G. Standard Specification for mix C-3/4, Section 710. The thickness of the pavement and aggregate base replaced shall be consistent with the thickness of the existing asphalt pavement and base, but shall not be less than 2 inches (2") of asphaltic pavement over nine inches (9") compacted depth, of aggregate base compacted to 100% of maximum density for the material. For Portland Cement concrete paving cut replacement, this same specification will apply.The existing pavement shall be trimmed to a neat edge and the edge shall be treated with a proper emulsion to insure a bond between the existing pavement and the patch. It is requred that all roadway crossing of lines 4" in diameter or less be bored or pushed under pavement which is less than five (5) years old.Where boring is impossible due to caliche or rock, trenching may be allowed with written authorization by the City Engineer. V.SURFACE RESTORATION OF GRAVELLED OR EARTH SURFACE ROADS. The surface replacement for gravel surfaced roads shall be consistent with the existing surface material in place, and may consist of Select Material or A.B.C. as directed by the City Engineer. Fill placed on existing gravel surfaced roads or earth surfaced roads to obtain minimum allowable cover over the pipe or utility lines shall be placed to proper grade for the 5. full widths of the existing roadway and shall be compacted and graded to the satisfaction of the City Engineer. VI.MISCELLANEOUS. The Contractor shall secure a City Engineering Department Permit prior to start of any construction operations within City right-of-way.Three (3) sets of approved plans must be submitted with the application at least five (5) working days before work is scheduled to begin. The permittee shall notify the property owner or resident of adjoining occupied property at least two (2) working days prior to disruption of access to the property, and at no time deny access to the property longer than one (1) normal working day, and shall provide plank for crossings, if necessary. The permittee shall maintain all existing traffic control signs within the construction area, and shall reset all signs in their original locations as soon as construction operations will permit.The permittee shall place and maintain traffic warning devices during the course of work, as required by the City Engineer. Only rubber -tired equipment shall be used on pavement. Water or approved dust palliative in sufficient quantities shall be applied during all phases of construction involving open earth work to prevent the unnecessary discharge of dust and dirt into the air. During the course of work, the permittee shall maintain the work area in a clean and orderly condition.Excess excavation, debris, etc., will not be permitted to accumulate on the road surface or shoulders.Work shall progress in such a manner that no condition such as soft trenches, drop-offs from the edge of pavement, etc., will exist.Upon completion of install- ation, the permittee shall clean the pavement surface, pull and dress shoulders, and otherwise put in order the entire work area to the satisfaction of the City Engineer. NOTE:Contractor shall notify the City Engineer, the Police Department and the Fire Department 24 hours prior to completely closing any street for construction.