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HomeMy WebLinkAboutpg 07 of 10 SpecificationsJ. Utilities It shall be the responsblity of each contractor to verify all existing utilities and conditions pertaining to his phase of the work. It shall also be the contractors responsiblity to contact the owners of the various utilities before work is started. The contractor shall notify in writing the owners or the engineer of any changes, errors or omissions found on these plans or in the field before work is started or resumed. No. Date Revision SPECIFICATIONS TOM WOOD JAGUAR PARKING City of Carmel, Clay Township, Hamilton County, Indiana Design By MFH Drawn By MFH Checked By AES Approved By AES falcon ENGINEERING, INC. Date August 6, 2004 Job No. 159,0 Scale AS SHOWN 13110 Promise Road, Noblesville, IN 46060 Sheet No. OF 10 Phone= (317) 841 -3141 Fax= (317) 841 -9951 EARTHWORK 1. SCOPE OF WORK A. Extent: The work r ured under this section consists of all excavating, filling, rough wading and related items necessary to complete the work indicated on the &swings and described in the specifications. The Contractor shall notify in writing the owners and the En kneer of any changes, errors or omissions found on the plans or in the field i before work is started or resumed. 1. In general, the items of work to be performed under this section shall include: clearing and dubbing, removal of trees and stumps iwhere required), protection of trees to remain, stripping and storage of topsoil, fill compaction and rough grading of entire site. 2. Excavated material that is suitable may be used for fills. All unsuitable material and all surplus excavated material not required shall be removed from the site. The location of durpp and length of haul shall be the Contractor s responsibility. 3. Provide and place any additional fill material from off the site as may be necessary to produce the ales required. Fll wades from off site sinal be of kind and quality as specified for fills herein and the source approved by the Owner. 4. The Contractor shall accept the site as he finds it and shall remove all trash, rubbish and debris from the site prior to starting excavation. B. Work not included: The following items of related work are specified and induded in other sections of these specifications: 1. Excavation, grading and bockfill'ing for utility limes 2. Storm drainage systems 3. Sanitary sewer systems 4. Streets and paving 5. Water supply system 2. BENCH MARKS Maintain carefully all bench marks, monuments and other other reference points; if disturbed or destroyed, Contractor shall pontact engineer. Replacement shall be at Contractors expense. 3. REMOVAL OF TREES A. Remove all trees and stumps from area to be occupied by road and surfaced areas. Removal of trees outside these areas shall only be done as noted on drawings or approved by the Owner. B. M brush, stumps, wood and other refuse from the trees shall be removed to disposal seas off of the site. Disposal by burning shall not Pe permitted unless proper permits are obtained (where applicable). The location of on-site bury pits shall be approved by the owner and the i Engineer if permitted. 4. PR0TEC11ON OF TREES A. General Protection: The Contractor shall be responsible for the protection of tops, trunks and roots of existing trees on the project site that are to remain. Existing trees subject to construction damage shall be boxed, fenced or otherwise protected before any work is started; do not stockpile within branch spread. Remove interfering branches without injury to trunks and cover scars with tree paint. 5. HANDUNG OF TOPSOIL A. Remove all organic maters from the areas to be occupied by buildings, roads, walks and paking areas. Pile and store topsoil at a location where it wll not interfere with construction operations. Topsoil shall be reasonably free from subsoil, debris, weeds, grass, stones, etc.. B. After completion of site ading and subsurface utility installation, top soil shall be replaced in areas design ed on the erosion control plan for seeding and/or sod. Any remaining topsoil shall be used for finished grading around structures and landscaping areas. 6. DISPOSITION OF U11U11ES: A. Rules and regulations governing the respective utilities shall be observed in executing all work under this section. 8. If active utilities are encountered but not shown shown on the drawings, the Engineer shall be advised before work is continued. C. Inactive and abandoned utilities encountered in excavating and grading operations shall be reported to the Ingineer. They shall be removed, plugged or capped as directed by the Utility Company or the Engineer. D. It shall be the responsibility of each contractor to verify all existing utilities and conditions pertaining to his phase of the work. It shall also be the contractors responsibility to contact the owners of the various utilities before work is started. 7. SITE GRADING: A. Grades: Contractor shall perform all cutting, filling, compacting of, fills and rough grading required to bring entire project area to grade as shown on the drawings. B. Rough Grading: the tolerance for paved areas shall not exceed 0.10 feet plus or minus above the established subgrade. All other areas shall not exceed 0.10 feet or minus the established grade. All banks and other breaks in grade shall be rounded at top and bottom. C. Compaction Requirements: 1. All areas under building ads and paved areas shall be compacted to 95% standard proctor density. 2. All other fill areas shall be compacted to 90% standard proctor density. 8. EARTH WORK BALANCE A. The Contractor shall confirm all earthwork quantities prior to start of construction. If an excess or shortage of earth is encountered the, Contractor shall confirm with the Owner and Engineer the requirements for stockpling, removal or importing of earth. B. Minor adjustments to the grades may be required to earthwork balances when minor excess material or shortages are encountered. It is recognized by the parties hereto that the cdculations of the the Engineer in determining earthwork with quantities shall be accomplished in accordance wthe American Society of CM Engineers Standards for such calculations. Further, that these calculations are subject to the interpretations of soil borings as the ph cal limits of the various soil types, the callow s e variation in finish grade and compaction permitted the contractor and that all of these parameters may cause either an excess or shortage of actual earthwork materials to complete the project. If such an actual minor excess or shortage of materials occurs, the contractor shall con the Engineer to determine if ad stment can be made to correct the imbalance of earth. 9. TESTING A. Contractor shill hire at Contractors expence an independent soil testing service to assure sot compaction with scope of testing to be approved by Engineer. Copies of test results shall be submitted to the Engineer. STORM SEINER SYSTEMS SCOPE OF WORK The work under this section indudes all storm sewers, storm water inlets, and related items, induding excavating and backfilling, necessary to complete the work shown on the drawings. All work and materials shall meet Hamilton County specifications. 2. MATERIALS A. Storm Sewers 1. Reinforced concrete sewer pi joints conform to ASTM C -76 latest revision, w oints conforming to ASTM C -443 latest revision when storm pipe is continuously submerged in water. 2. Aluminized type 2 corrugated steel pipe shall ufactured i clpnce wi AHT pt e an 1 wit 2 2/Y ac x 1 /2 corr uga th tion AS for O M36 fxid 15 c�jameters; type IR witji 374 x 3/4 x 7 1/2 corrugations for 18 diameter and larger). The pOe shall be formed from an aluminized steel type 2 col that conforms to AASHTO M274. The minimum gage thickness of the pipe shall be as follows: Diameter Gage 12" 2' 448" 14 54 84 12 B. Manholes 2. Casting shall be of uniform quality, free from blow holes, porosity hard spots, shrinkage distortion or other defects. They shall be smooth and well cleaned by shot blasting or by some other approved method. They shall be coated with andt paint which shall result in a smooth coating, tou and tenacious when cold, not tacky or Witte. They shall be gray iron meeting ASTM A -48 latest revision. 3. Joints Manhole sections shall be jointed with rubber type gasket& The rubber type gaskets Shall meet ASTM C -443 latest revision. When manhole and storm pipe are continuously in water. C. SUBDRAINS 1. Perforated astic _p' a subd airs shall conform to ASTM F -405, AASHTO m -252 (4 to 10 pipe). 3. APPLICATION Hi density pot th llene pipe shall _perform 3. AASHTO M252 and M294 Type S specs cations, latest revision, and shall have material ecifications conforming to ASTM 01248 or latest revision. 1. Precast reinforced concrete manhole sections and steps shall conform to ASTM C -478 latest revision. A. Permits and Codes The intent of this section of the specifications is that the contractor's bid on the work covered herein shall be based upon the drawings and specifications but that the work shall comply with all applicable codes and regulations as amended by any waivers. Contractor shall furnish all bonds necessary to get permits for cuts and connections to existing sewers. Contractor shall notify the County Surveyor s Office a minimum of 72 hours prior to the commencement of storm sewer construction. B. Local Standards the term "Local Standards" as used herein means the standards of design and construction of the respective municipal department or utility company. C. Existing Improvements Maintain in operating condition all active utilities, sewers and other wins encountered in the sewer installation. Repair to the satisfaction of the owner any damage to existing active knprovements. D. Workmanship To conform to all local, state and national codes and to be approved by di lord and state agencies having jurisdiatiion. E. Trenching Lay all pipe in open ,trenches, except when the local authonty gives written permission for tunneling. Open the trench sufficient ahead of ipe laying to reveal any obstructions. The width of the trench shall be the inside pipe diameter plus 24 inches for 12 inches above the pipe. Sheet and brace trench as necessary to protect workmen and adjacent structures. All trenching to comply with Occupational Safety and Health Administration Standards Keep trenches free from water while construction is in progress. Under no circumstances lay pipe or appurtenances in standing water. Conducl the discharge from trench dewatering to drains or natural drainage channels. F. ecid Supports Whenever in the opinion of the Engineer the soil at or below the pipe grade is unsuitable for supporting sewers and appurtenances specified in this section, such special support, in addition to those, shown or specified, shall be provided as the Engineer may direct, aid the contract will be adjusted G. Badkfilling for a depth of at least 12 inches above the top of the pipe, backfill with earth or granular material free from large stones, rock fragments, roots or sod. Tamp this backfill thoroughly, taking care not to disturb the pipe. For the remaining, trench depth, backfill with earth or granular material containing stones or rocks npt larger than 4 inches. Backflf under and within 5 of paved areas shall be granular material only and shall conform to local standards thoroughly compacted by approved methods. H. Manhole Inverts Construct manhole flow channels of concrete sewer pie or brick, smoothly finished and of semicircular section conforming to the inside diameter of the connectin g sewers. Make changes in size or grad adually and changes in tio direcn by true curves. Provide such channels for all connecting sewers at each manhole. I. Subdrains All subdrains shall be of the size shown on the plans and shall be constructed to the grades shown. All drains constructed off -site as part of the outlet drain will be located as shown. STREETS AND PAVING 1. SCOPE OF WORK A. The work required under this section indudes all concrete and bituminous paving and related items necessary to complete the worlc indicated on drawings and described in the specifications, induding but not limited to: All streets, parking areas in contract !knits Curbs and gutters. Sidewalks and concrete slabs, exterior steps. 2. MATERIALS A. Concrete Concrete shall be read mixed concrete and shall be a mix of proportioned fine and coarse aggregates with Portland cement and water. mum cement content shall be 6 bags per cubic yard of concrete and maximum water content shall be 5.5 U.S. me�lons per sack of cement, induding moisture in the aggregate. Slump for normal weight concrete shit be a maximum of 4 inches and a minimum of 2 inches. The slump o machine place concrete shalt be no less than 1 -1 4 inches nor more than 3 inches. Standard test ASTM C-143 shall be used to measure slump. Compressive strength of concrete at 28 days shall be 4000 psi. All exterior concrete shall hove at entrainment of 5% to 8% by volume per ASTM C -260. Retempering delivered concrete will not be allowed. Concrete shall be composed of: 1. Portland cement Conforming to ASTM C -150, Type IA or Type 111A. 2. Aggregates: Conforming to ASTM C -33 3. Water Shall be clear and free from injurious amounts of oils, acids alkdis, organic materials or other deleterious substances. B. Welded Steel Wre Fabric Where required for concrete reinforcement shall conform to ASTM A185. C. Premoulded Joint Flier Shalt be of non extruding type meeting ASTM D -544 except that premoulded jaint filler used in concrete walk construction may be either non extruding or resliient. D. Bituminous Pavement Materiels All materials proposed for the construction of bituminous pavements shall comply with the Indiana Department of Transportation specifications, per latest revision. E. Compacted Aggregate Subbase: Shall be crushed stone or grave Crushed gravel shall be a minimum of 35% crushed material. Chert shall be limited to a maximum of 8% of the total. Material shall be free from an excess of flat, elongated, thinly laminated, soft or disintegrated pieces; and shall be free from fragments coated with dirt. Compacted aggregate shall be graded as follows: SIEVE SIZE PASSING 1 1/2" 80-100 1f2 55-80 25-50 1 5-10 3. APPLICATION A. Grading Do any necessary gradk in addition to that performed in accordance with Earthwork Section, to bring_ subgrades, after final compaction, to the required grades and sections for site improvement. 8. Preparation of Subgrade Remove ngy and otherwise unsuitable material and r ace with stable material. No traffic will be lowed on prepared subgrade prior to paving. C. Compaction of Subgrade The first 6 inches below the subgrade shall be compacted to at least 100% of the maximum dry density as determined by the provisions of AASHTO T -99. Water shall be prevented from standing on the compacted subgrade. D. Compacted Aggregate Subbase the thickness shown on the drawings is the minimum thickness of the fully compacted subbase. Compaction shall be accomplished by rolling with a smooth wheeled roller weighing S to 10 tops. Compact to 95% standard proctor density (ASTM D 1557) Along curbs, headers and walls and at all placed not accessible to the roller the aggregate material shall be tamped with mechanical tampers or with approved hand tampers. E. Bituminous Pavement Hot asphalt concrete pavement shall be as specified in Section 400 -410 of the Indiana Department of Transportation Specifications latest revisions. Paving will not be permitted during unfavorable weather or when the temperature is not in compliance with section 401.05 of the INDOT Specifications. F. Utility Structures Check for .orrect elevation of all manhole covers, naive boxes and similar structures located within areas to be paved, and make, or have made, any necessary adjustments in such structures. G. Placing Concrete Subgrade Place concrete only on a moist, compacted subgrade or base free from loose material. Place no concrete on a muddy or frozen subgrade. 2. Forms All forms shall be free from tight enough to prevent leakage and substant enough to maintain their shape aid position without p ringmg or settling, when concrete is placed. Forms shall be dean and smooth and coated with form release before placement of concrete. 3. Placing Concrete Concrete shall be deposited so as to require as little rehandling as practicable. When concrete is to be placed at an atmospheric temperature of 35 degrees F. or less, paragraph 702.10 of the Indiana Department of Transportation Specifications latest revision shall be followed. U11U11ES 2. GAS H. Concrete Curb 1. Expansion Joints Shall be 1/2 inch thick premou ded at ends of all returns and at a maximum spacing of 100 feet. 2. Contraction Joints Unless otherwise provided, contraction joints shall be sawed joints spaced 20 feet on center. 3. Finish Tamp and screed concrete as soon as placed, and fill any honey bed places. Finish square comers to 1 /4 radius and other comers to radii shown. I. Concrete Walks and Exterior Steps 1. Slopes Provide 114 inch per foot cross slope. Make adjustments in slopes at walk intersections as necessary to provide proper drainage. 2. Dimensions Walks and steps shall be one course construction and of widths and details shown on the drawings. 3. Finish Screed concrete aid trowel with a steel trowel to a hard dense surface after surface water has disappeared y medium broom finish and scribe trot joints at 5 foot spacing. Provide 1 2 expansion joints where sidewalks intersec and at a maximum spacing of 48 feet between expansion joints. Curing Concrete Except as otherwise specified, cure all concrete by one of the methods described in Section 501.17 oI the Indiana Department of Transportation Spedfications, latest revision. 1. WATER A. All water mains shall be installed and tested in accordance with local standards and requirements. Gas mains shown in the lans are for information only. The local gas unity is responsble for final design aid installation of new gas mains. 3. OTHER U11UTIES Electric Telephone and CAN lines shown in the plans are for information only. ibe local utility companies are responsble for find design and installation of the respective utility lines. 0 1 ,111111 r 1t/ j 1 E. SKoo No. 880573 .o STATE IT roc. 4. 8 ON At Ot s' difr11n1 08/17/04