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HomeMy WebLinkAbout14 SpecificationsSPECIFICATIONS GENERAL NOTES: 1. All work shall be performed in conformance with the Subdivision Control Ordinance of City of Carmel and all other ordinances which pertain to this type of work. 2. No changes in or departure from the plans or specifications shall be made without prior approval, in writing, by the Engineer. 3. The Contractor shall be responsible for obtaining all Federal, State, County and City permits, or any other permits required. 4. Before construction begins, the contractor shall field verify the location of all utilities, and contact all utility companies to locate all mains, conduits, service Tines, etc., in the construction area and shall protect all such utilities during construction. �s 5. Before construction begins, the contractor shall notify the owners, and /or the owner engineer so that an inspector may be present. 6. It shall be the responsibility of the developer and Contractor to maintain quality control throughout the project; failure to do so may result in removal and replacement of the defective work. It is recommended that the developer have a qualified inspector on the job site at all times during construction. 7. It is essential that the work to be done in conjunction with this project shall be installed according to these specifications. The Engineer will be required to certify to certain portions of this project upon completion. Therefore, it is necessary to obtain approval and acceptance by the city that construction was done in compliance with these plans and specifications. 8. The engineer shall be notified of all field tile located on the site during construction. All such field tile shall be incorporated into the storm sewer system so that it remains in working condition. 9. Plans shall be bid as a working system. Any errors or omissions shall be brought to the attention of the engineer prior to construction. In the event of the contractor's failing to give such notice, he shall be held responsible for the results of any such errors or omissions and the cost of rectifying the same. 10. Liability insurance policy shall be furnished to the Developer before any work is started. iI. CLEARING AND GRUBBING 1. Clearing and grubbing shall consist of cutting, removal and satisfactory disposal of all trees, down timber, brush, projecting roots, stumps, rubbish, boulders, broken concrete, fencing (as designated), and other material on the project site and within the boundary as shown on the Construction Documents and /or as designated by "construction limits 2. Special care shall be taken to insure that trees to be left remaining in the project area shall not receive limb, bark or root injuries. When such injuries occur, all rough edges of scarred areas shall be removed in accordance with accepted horticulture practice. 3. All "unsuitable material' from clearing operations stated above shall be removed to disposal area(s) off of the project site; unless a "Bury Pit" shall be utilized in an area where it shall not be beneath building areas and /or pavement areas and shall not be located in an area where storm drainage structures shall be located or where impoundment of surface drainage may occur. Written permission of project owner must be obtained for bury pit construction on site, including location. 4. Materials shall not be disposed of by burning unless a permit is secured from the Indiana Department of Environmental Management and approval is granted by the local Fire Marshall. III. TREE REMOVAL AND PROTECTION 1. Trees shall be removed from the project site only where the area is to be occupied by road and surfaced areas, or as shown on the plans. 2. Trees shall be removed from the project site as directed by the Developer, and so designated. 3. Trees shall be removed from the project site where they interfere with the placement of storm or sanitary sewers. 4. The Contractor shall endeavor to save and protect trees of value and worth which do not impair construction of improvements as designated. in the event cut or fill exceeds 0.5 foot over the root area, the Developer shall be consulted with respect to protective measures to be taken, if any, to preserve such trees. 5. The contractor shall be responsible for determining the method for 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 adjacent work is stared. Earth or material and equipment shall not be stockpiled or stored within the spread of branches. Branches which need to be removed or are broken shall be neatly trimmed. 1V. STRIPPING OF TOPSOIL 1. The Contractor shall verify that all topsoil has been removed in the areas to be occupied by road, walks and designated building areas. Topsoil shall be removed to a depth of 8 inches or deeper, if necessary, to remove vegetative matter where required. 2. Topsoil shall be kept separated from suitable fill materials and shall not be used as fill under pavement and /or building areas. 3. Topsoil shall be stored at a location where it does not interfere with construction operations. Excess topsoil shall be removed from the site, and only at the discretion of the Owner. Topsoil storage areas shall be approved in writing by the Owner. 4. Topsoil shall be reasonably free from subsoil debris and stones. IV. GRADING 1. The Contractor shall perform all grading operations to bring subgrades, after final compaction, to the required grades and sections for site improvement. 2. Subgrade shall be proofrolled with suitable equipment and all spongy and otherwise unsuitable material shall be removed and replaced with suitable material. 3. Subgrade for streets shall be prepared in compliance with section 207 of the INDOT standard specifications, or its latest revision, for all areas of street construction. Subgrade shall be compacted to 100X of standard proctor in the upper 6 inches of depth. Depths of embankment below the upper 6 inches shall be compacted to 95X of standard proctor. 4. No earth shall be removed from the job without permission from the engineer and owner. 5. All fill material shall be formed from soil free of deleterious material. Prior to placement of fill, a sample of the proposed fill material should be submitted to the developer's representative for his approval. The fill material should be placed in layers not to exceed six (6 inches in loose thickness and should be spread and dried to a moisture content which will permit proper compaction. 6. All fill material in areas outside of building and pavement areas shall be compacted lightly and protected from erosion. Areas of building construction shall not have unsuitable material placed in that location, and fill shall be compacted in accordance with the Soil Engineer's report (minimum of 95/ standard proctor). These areas shall be determined by the developers representative. 7. All fill materials in excess of two (2) feet shall be considered as structural fills, and shall be compacted in six (6 inch lifts with compaction tests required for each lift. Compaction for all structural fill areas shall be 95X standard proctor, and test results shall be submitted to the Owner's engineer and /or representative. TYPICAL SANITARY SEWER SPECIFICATIONS TO BE USED FOR PRIVATE SEWER DEVELOPMENT WITHIN CLAY TOWNSHIP REGIONAL WASTE DISTRICT REVISED MAY 2002 1. Standard specifications of the District and Indiana Department of Transportation shall apply for all work and materials. Pipe shall be installed in accordance with Section 715. 2. Sanitary sewer pipe shall be PVC in accordance with ASTM D -3034 (S.D.R. 35) and ASTM 2321. PVC pipe shall have grooved bell and gasket. The pipe shall be made of PVC plastic having a cell classification of 12454B. 3. PVC sewer fittings shall conform to the requirements of ASTM D-3034-89 specification. Fittings in sizes through 8" shall be molded in one piece with elastomeric joints and minimum socket depths as specified in sections 6.2 and 7.3.2. Fittings 10" and larger shall be molded or fabricated in accordance with section 7.11 with manufacturers standard pipe bells and gaskets. Wall thickness of fittings shall be SDR 26 as defined in section 7.4.1 of specifications. Gaskets for elastomeric joints shall be molded with a minimum crosssectional area of 0.20 square inches and conform to ASTM F -477 specification. Fittings shall be manufactured by Harco or equal. 4. All sanitary manholes shall be precast concrete manholes in accordance with ASTM C-478 and Section 720. 0-rings shall conform to C -443. Kent Seal or equivalent shall also be applied to all joints and between riser rings and castings. Manhole step spacing shall be no more than 16- inches. Manholes shall be air tested for leakage in accordance with ASTM C1244 -93, Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test. A. Installation and operation of vacuum equipment and indicating devices must be in accordance with manufacturers recommendations and performance specifications which have been provided by the manufacturer and accepted by the Engineer. The vacuum equipment must be capable of testing the entire manhole, including the casting and riser rings. B. With the vacuum tester set in place: 1. Connect the vacuum pump to the outlet port with the valve open. 2. Draw a vacuum of ten (10) inches of Hg. and close the valve. C. Accepted standards for leakage will be established from the elapsed time for a negative pressure change from ten (10) inches to nine (9) inches of mercury, The maximum allowable leakage rate for a four (4) foot diameter manhole must be in accordance with the following: Manhole Depth 10 feet or less >10 feet but <15 feet >15 feet but <25 feet Minimum Elapsed Time for a Pressure Change of 1 Inch Hg 60 seconds 75 seconds 90 seconds For manholes five (5) feet in diameter, add an additional fifteen (15) seconds and for manholes six (6) feet in diameter, add on additional thirty (30) seconds to the time requirements for four (4) foot diameter manholes. For all manholes deeper than twenty-five (25) feet, the Engineer will determine the applicable minimum elapsed time. D. If the manhole fails the test, necessary repairs must be made and the vacuum test and repairs must be repeated until the manhole passes the test. E. If manhole joint sealants are pulled out during the vacuum test, the manhole must be disassembled and the joint sealants replaced. F. Manholes will be subject to visual inspection with all visual leaks being repaired. 5. Butyi rubber coating shall be applied around each manhole joint from 6- inches above to 6- inches below each joint. The appropriate primer shall be applied prior to applying the rubber coating. Inside joints to be filled with precoat plug material. 6. The manhole chimneys, including all riser rings shall be sealed using Infi- Shield Uniband or approved equal. Prior to placement, the top 4 inches of the manhole cone and casting frame shall be cleaned and primed. The Uniband shall extend from 3- inches below the top of the cone section to 2- inches over the flange of the manhole casting frame. 7. The casting elevations are set by plan. However, the castings are to be adjusted in the field by the Engineers representative should a discrepancy occur between plan grade and existing grade. New manhole ring and cover shall be installed to establish grade. Maximum height of adjusting rings shall be 12- inches. 8. Backfill around all structures and all cuts under paved areas with granular material. Trenches opening within 5 -feet of paved roadways shall be backfilled with granular material in accordance with Section 211. Backfill under sidewalks shall be granular, unless the walks are constructed a minimum of 6 months after backfill has been in place. 9. The Contractor shall be responsible for verifying that all state highways, city, and county permits have been obtained by the developer prior to start of construction. 10. The Contractor shall be required to furnish the developer's Engineer with a set of prints, marked in red pencil, showing actual sewer location and invert, to include lateral location, depth and length. Such asbuilt prints must be received by the Engineer before the final contract payment can be authorized. The sanitary sewer laterals and stubs termination shall be indicated on the surface with a metal fence post set immediately above the said termination point. 11. All sanitary sewer lines upon completion will be required to pass a low pressure air test. Said test shall be conducted according to ASTM 1417 -92, and shall be witnessed by an Engineer and a representative of the District. The testing shall be in accordance with Table 1. Add 0.5 psig for each foot of water above the sewer line being tested. 12. Deflection tests shall be performed on all flexible= pipe after the final backfill has been in place at least 30 days. No pipe shall exceed a vertical deflection of 5/ deflection test results. =The following are considered non flexible pipes: concrete pipe, ductile iron pipe, and cast iron pipe). The deflection test shall be performed with a nine -point mandrel. Proving rings shall be available. 13. All mandrel testing shall be observed by a professional engineer representative for certification and a representative of the District. 14. The ends of laterals are to be plugged tight with a braced plastic disc or cap capable of withstanding a low pressure air test without leakage. 15. Bedding for flexible pipe shall be No. 8 crushed stone from 6- inches below the pipe to 12- inches above the p ipe. Bedding for rigid pipe shall be No. 8 crushed stone from 6-inches below the pipe to the spring line of the pipe and from this point to 12 inches above shall be fill sand or equivalent. Manholes shall be placed on no less than 6- inches of No. 8 crushed stone bedding. 16. Water and sewer line crossings and separations shall be in accordance with 327 IAC 3 -6 -9. 17. Trench shall be opened sufficiently ahead of pipe laying to reveal obstruction, and shall be properly protected and /or barricaded when left unattended. 18. No water shall be permitted to flow into the sanitary sewer system during construction. Contractor shall utilize a pump to keep the water level below the pipe. Pump discharge shall be directed to a storm outlet in accordance with state and federal laws and regulations (327 IAC 3- 6-20). Any pipe entering existing sewers shall be plugged with screw type mechanical, braced plug until such time as all tests on the sewers have been completed and the lines have passed all punch lists. 19. All sewer laterals installed by the mainline Contractor shall be bedded the same as the main line sewer. 20. For 1 -eight (48) hours notice shall be given to the District prior to the start of sewer construction. Also, 48 hours notice shall be given prior to doing any testing on the sewer. 21. Manhole castings shall be stamped SANITARY SEWER (Neenah Costing R 1642A or equal) and be self sealing type. The casting flange shall be 34 inches and the clear opening shall be 24 inches. Waterproof castings shall be Neenah R- 1916 -F1 and stamped SANITARY SEWER. 22. The minimum slope for sewer acceptance by the Clay Township Regional Waste District are: Size of Pipe Minimum Constructed Slope 8 -inch 10 -inch 12-inch 15 inch 18 -inch 0.401. 0.28X 0.22X 0.15/. 0.12/ 23. The Contractor shall provide measurements of the slope of the sewer for each manhole section as construction progresses. Such measurements shall be certified by a Registered Land Surveyor or Engineer and be available on -site for observation by the District's Inspector. No more than three manhole sections can be constructed in advance of such measurements. 24. In the event the Contractor does not meet the minimum slopes, the sewer section and any other affected sewer sections shall be reconstructed to meet such minimum slopes. 25. Laterals are to be traced with a minimum size of 14 gauge wire from the wye to the terminus. The contractor for the building or home will extend the wire from this terminus to the building cleanout adjacent to the building TABLE 1 MINIMUM SPECIFIED TIME REQUIRED FOR A 1.0 psig DROP FOR SIZE AND LENGTH OF PIPE INDICATED Pipe Diameter In, 4 6 8 1 12 16 18 21 24 27 30 33 38 Minimum Time, mints 148 5:40 7:34 8:26 199 11:20 14:10 17:00 1950 22:40 25:30 28:20 31.10 Length for Minimum Time, ft 597 386 298 239 158 133 114 89 88 80 72 86 Time for Longer Length, S 0.360 L 0.854 L 1.520 L 2.374 L 3.418 L 5.342 L 7.682 L 10.470 L 13.674 L 17.306 L 21.388 L 25.852 L 30.788 L Specification Time for Length (Ll Shown,min:s 100 ft 3:46 5:40 7:34 928 11:20 14 :10 17:00 18:60 22:47 28:51 35:37 49:05 61:17 150 ft 146 5:40 7:34 9 :28 11:20 14:10 19:13 26:10 34:11 43:16 53'26 64:38 76:55 200 ft 3:46 5:40 7:34 9:28 11:24 17:48 25:38 34:54 45:34 57:41 71 :13 88:10 102:12 250 ft 3:46 5:40 7:34 9:63 14:15 22:15 32:03 43:37 56:58 72:07 89:02 107:49 128:12 300 ft 3:46 5:40 7:36 11:52 17:05 26:42 38.27 52:21 68:22 86:32 108:50 129:18 153 :80 350 ft 3:46 5:40 8:52 13:51 19:58 31:09 44:52 61:00 79:46 100:57 124:38 150:43 179:29 400 ft 3:46 5:42 10:08 15:49 22:47 35:36 51:16 69:48 91:10 115:22 142:25 172:21 205:07 450 ft 3:46 6:24 11:24 17:48 25:38 40:04 57 :41 78:31 102:33 129:48 160:15 193:53 230:46 VII. EROSION PROTECTION 1. The Contractor shall provide adequate erosion protection measures during and after construction. Following are methods to be employed and materials to be used: A. Riprap required at location designated on the plans. Riprap to be a size of D50 7" and a minimum of 15" thick. B. All collector swales shall be mulch seeded and have an erosion control blanket. The erosion control blanket is to be placed in the flow line and on all slopes 3 :1 or greater. Follow manufacturer's specifications for laying and securing the erosion control blanket. C. Construction operations conducted on all property shall be neatly finish graded and mulch seeded. D. All inlets are to be protected, preferably with sandbags, silt fence or straw bales, to help prevent siltation in the storm sewer system. E. Permanent seeding is required from back of curb to right-of -way along all new street construction. F. See seeding requirements found on the erosion control plan. G. All collector swales having a grade of 0.5Z to 1.OX are required to have a subsurface drain. All swales to have subsurface drains if draining greater than 1 acre of area. V1I1. STORM SEWER CONSTRUCTION 1. Storm sewer structures shall comply with current specifications of Hamilton County Standards for Storm Drainage Design 2. Contractor shall notify Hamilton County Surveyor's office forty-eight hours prior to commencement of storm sewer construction. 3. Manholes, catchbasins and inlets shall be precast concrete. 4. Precast concrete and steel for manholes and inlets shall be in accordance with A.S.T.M. C -478. 5. Castings shall be as shown on the storm sewer profiles details, type and model number. 6. Granular backfill shall be required for all crossings under pavement areas. 7. All pipe shall be bedded with bedding installed as required by ASTM specifications pertaining to the type of pipe being installed. 8. All sewer and water line crossings shall be in accordance with Ten State Standards, state and local codes. 9. All storm sewer pipe is designed to have a Manning's "n" coefficient of 0.12. IX. UTILITIES 1. Water Line Note: Wo er lines to be designed and installed by the Veolia Water 2. Electric, Telephone, Cable and Gas A. Conduit shall be required for all crossings under pavement areas. B. Granuirr backfill shall be required for all crossings under pavement areas. C. Concrete pads for electric and telephone transformers shall be set at the approximate gr and grade as shown on the Site Development Grading Plans for the respective loz,ations. D. The contractor is to coordinate with the utility companies so that they may install their needed facilities prior to curbs and paving. A minimum of seven working days is r(- quired. X. GRANULAR BACKFILL Shall be in accordance with INDOT Standard Specifications Xl. PAVEMENT CONSTRUCTION 1. All street construction shall be in accordance with the plans and specifications and conform to the minimum standards of Hamilton County 2. Subgrade shall be prepared in compliance with Section 207.02 of the iNDOT standard specifications. No traffic shall be permitted on the prepared subgrade prior to paving. 3. Backfilling of utility trenches with granular material under pavement areas is required, and shall conform to minimum standards of Hamilton County 4. If bituminous material is used for the streets, the one inch surface course installation shall be delayed until approximately 80X of the housing units are constructed. XII. CONCRETE CURB AND WALKS 1. See detail sheet for type and details. 2. All concrete shall be ready-mix concrete conforming to A.S.T.M. specifications C -94 of CSA- A23.1, classes 10 and 12. Concrete shall be in conformance with Indiana State Highway Commission Standards. 3. Application A. Place concrete only on a moist compacted subgrade or base free from loose material. Place no concrete on muddy or frozen subgrade. B. Concrete shall be deposited so as to require as little rehandling as practical. When concrete is to be placed at an atmospheric temperature of 35 degrees Fahrenheit, or less, paragraph 702.10 of the INDOT Specifications, current edition, shall apply. 4. Sidewalk curb ramps shall be required within the public right of-way, and shall conform with the American Disabilities Act (ADA), Section 4.7. See detail. XIII. FINISH GRADING AND SEEDING (Developer shall designate location if required) 1. Over the approved rough grade (see Section V), spread 4 inch minimum of topsoil or approved fill to such depth as will finish to the required finish grades and contours after rolling and natural settlement. New grades shall slope uniformly between levels established on the plans, and intersections of new grades with existing grades shall be uniform and smooth. 2. Fertilizer shall be spread uniformly over the area to be seeded. It shall be mixed into the top two inches of soil with a disk harrow, rotary tiller, or other approved equipment. Fertilizer shall be spread at the rate of 800 pounds per acre, unless otherwise specified. 3. A permanent seeding mixture in the areas where stripping, cuts, or fills have been graded shall be seeded for silt and erosion protection at a rate of 90 pounds per acre with a mixture as follows: 18 lbs. Kentucky Bluegrass, 18 lbs. Park Kentucky Bluegrass, 18 lbs. Delta Kentucky Bluegrass, 10 lbs. Pennlawn Fescue, and 26 lbs. Annual Ryegrass. Wood cellulose fiber, straw or mulch, as approved by the Engineer, shall be applied at a rate of 4 tons per acre. Seeding mixture rates, including fertilizer and mulch, should be seeded during March 1 to May 10th, or from August 10 to September 30th, and immediately following the land grading or construction completion, preferably the same day while soil conditions are moist and loose for best results. 4. If final lot grading is not done within a timely manner, then a temporary cover shall be seeded 40 lbs. of annual rye-grass per acre and 40 lbs. of Kentucky 31 Fescue (or approved equal) c 0 5 a) cc E 0 U 0 Z CO O Z O W 1-": Q X U W Z3 F- Lu< Z c� U w J W rat 0 O o 01 k ?i; c %am cf, up<Q\-‘0 I W ()Vc' R' co M vi W m Project No: 03146 Sheet No: N *4 0i 0 0 140 17 \03146 \con .plans \0314 pc dgn 5/27/2004 3: 10: 31 PM V D r1/4,