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HomeMy WebLinkAbout05050028.8EARTHWORK 8. Earth Work Balance The Contractor shall confirm all earthwork quantities J. Flushing Sewers -Flush all sanitary sewers except g Y G. Backfilling - for a depth of at least 12 inches above the top the pipe. backfill with earth or 3. Placing Concrete - Concrete shall be deposited so as to require as little prior to start of construction. If on excess or is the Contractor building sewers with water to obtain free flow through each line. Remove all slit and trash from al granular material free from large stones, rock fragments, roots or sod. Tamp this backfill rehandling as practicable. When concrete is 9 P be placed at al atmospheric temperature of 1. SCOPE OF WORK shortage of earth encountered, shall 9 confirm with the Owner and Engineer the requirements appurtenances just prior to acceptance of work. thoroughly, taking care not to disturb the pipe. 35 degrees F. or less, paragraph 702.10 of 3 9 P 9 P A. Extent: The work required under this section for stockpiling, removal or importing of earth. K. Plastic Sewer Pie Installation - Plastic sewer P For the remaining trench depth, backfill with earth or granular material containing stones or the Indiana Department of Transportation Specifications latest revision shall be consists of all excavating, fillip rough radii 9 9+ 9 grading and related items necessary to complete the work Minor adjustments to the grades may be required to pipe shall be installed in a accordance with ASTM D2321 per latest revision and no plastic pipe rocks not larger than 4 inches. Backfill under followed. indicated on the drawings and described in the specifications. The Contractor shall notify in earthwork balances when minor excess material or shortages are encountered. It is recognized by the shall exceed a deflection of 571:. and within 5 of walks, parking areas, driveways and street shall be granular material only - F. Concrete Curb writing the owners and the Engineer of any changes, parties hereto that the calculations of the Engineer L. Storm Water Connections - No roof drains, footing thoroughly compacted by approved methods. 1. Expansion Joints - Shall be 1/2 inch thick errors, or omissions found on the plans or in the field, before work is started or resumed. in determining earthwork quantities shalt be ac- complished in accordance with the American Society of drains and /or surface water drains may be connected to the sanitary sewer systems, including H. Manhole Inverts - Construct manhole flow channels P remoulded between storm structures &curb. Civil Engineers Standards for such calculations. Further, that these calculations are subject to the temporary connections during construction. of concrete sewer pipe or bride, smoothly finished and of semi - circular section conforming to the 2. Contraction /Control Joints - Unless otherwise 1. In general, the items of work to be 9 interpretations of soil borings as the physical limits of the various soil types, also the allowable variation M. Waterline Crossin - Where water lines and g inside diameter of the connecting sewers. Make changes in size or grade gradually and changes in provided, contraction joints shall be sawed or scored joints spaced 10 feet on center, except or performed under this action shall include: clearing and grubbing, removal of trees and in finish grade and compaction permitted the contractor, sanitary sewers cross and water lines cannot be Placed above the sewer with a minimum of 18 inches direction by true curves. Provide such channels intersection radii where its shall be laced 5' o.c. P stumps where required), rotection of trees P ( P and that all of these parameters may cause either an vertical clearance, the sewer must be constructed for all connecting sewers at each manhole 3. Finish -Tamp and screed concrete as soon as to remain, stripping and storage of topsoil, fill compaction and rough radii of entire P 9 grading excess or shortage of actual earthwork materials to 9 complete the project. If such an actual minor excess or of water works grade ductile iron pipe with �� mechanical Joints within 10 feet of the water I. Sshownns -All and shall be of the size laced, and fill an hone combed laces. P Y Y P Finish square comers to 1 4" radius and �i / site. shortage of materials occurs, the contractor shall contact the engineer to determine if adjustment can be line. shown on the plans and shall be constructed to the lane grades shown. All drains constructed off -site as other comers to radii shown. 2. Excavated material that is suitable may be Y made to correct the imbalance of earth. N. Utilities - It shall be the responsibility of sP Y part of the outlet drain will be located as shown. G. Concrete Walks and Exterior Steps used for fills. All unsuitable material and each contractor to verify all existing utilities J. Utilities - It shall be the responsibility of each all surplus excavated material not required and conditions pertaining to his phase of the contractor to verify all existing utilities and 1. Slopes - Provide 1/4 inch per foot cross shall be removed from the site. The work. It shall also be the contractors conditions pertaining to his phase of the work. slope. Make adjustments in slopes at walk location of dump and length of haul shall be responsibility to contact the owners of the It shall also be the contractors responsibility to intersections as necessary to provide proper the Contractor's responsibility. SANITARY SEWER SYSTEMS various utilities before work is started. The contact the owners of the various utilities before drainage. 3. Provide and place any additional fill contractor shall notify in writing the owners and the engineer of any changes, errors or omissions work is started. The contractor shall notify in writing the owners or the engineer of any changes, 2. Dimensions - Walks and steps shall be one material from off the site as may be 1. SCOPE OF WORK found on these plans or in the field before work errors or omissions found on these plans or in the course construction and of widths and details necessary to produce the grades required. Fill obtained from off site shall be of kind The work under this section includes all sanitary is started or resumed. field before work is started or resumed. shown on the drawings. and quality as specified for fills herein and the source approved by the Owner. sewers, manholes, deanouts and related items including excavating and badkfllling, necessary to complete the 0. Service Laterals - Individual lot service lines shall be 6" in diameter and of material equal to q K. Contractor to grout joints inside storm 3. Finish - Screed concrete and trowel with a trowel to a hard dense surface after work shown in the drawings, starting five feet outside that specified in 2A of this section. Service structures where pipes enter or exit P P and between structure and casting. steel surface water has disappeared. I medium PP Apply 4. The Contractor shall accept the site as he eP the bulldin walls. The ends of sewers shall be 9 lines shall be connected to the main sewer b a Y broom finish and scribe control Joints at 5 finds it and shall remove all trash, rubbish tightly plugged or capped at the terminal points, wye at locations shown on plan & profile sheets. foot spacing. Provide 1/2" expansion joints and debris from the site prior to starting adjacent to buildings, pending the connecting of all Unless otherwise noted, lateral ends shall be extended where sidewalks intersect, and maximum excavation. such lines to the building drain as specified in the to edge of easement. Location of laterals shall be spacing of 48 feet between expansion joints. plumbing specifications and architectural drawings. marked on curb by stamping cuff with "SA" at time AI B. Work not included: The following items of of curb placement. Letters shall be 2" in height STREETS H. Curing Concrete - Except as otherwise specified, related work are specified and included in other 2. MATERIALS & painted with green paint after concrete is cured. cure all concrete by one of the methods described sections of these specifications: Ends of lines shall be marked with a wood 4x4 in Section 501.17 of the Indiana Department of A. Sanitary Sewers painted green. 1. SCOPE OF WORK Transportation Specifications, latest revision. 1. Excavation, grading and Backfilling for utility lines 1. All gravity plastic sewer pipe and fittings shall conform to ASTM D3034, SDR -35 and meet P. New Sanitary Sewer Main Construction - Contractor shall record dimensions of each service line stub The work required under this section includes all I. Bituminous Pavement - Hot asphalt concrete Pavement shall be as specified in Section 403 of 2. Storm drainage systems a cell classification of 12454 B in accordance with ASTM 1784. from nearest downstream manhole measured along the sanitary sewer main. The locations of on concrete and bituminous paving and related items necessary to complete the work indicated on drawings the Indiana Department of Transportation latest Paving will not 3. Sanitary sewer systems manholes and service lines along with any other and described in the specifications, including ut not � g Specifications revisions. be permitted during unfavorable weather or when B. Manholes construction changes are to be incorporated on "Record limited to: the temperature is 40 degrees F. and falling. 4. Streets and paving 1. Precast reinforced concrete manhole sections the orie,�inal construction drawings and Drawing prints submitted to the City of Carmel All streets, parking areas in contract limits J. Compacted Aggregate Subbase - the thickness shown 5. Water supply system and steps shall conform to ASTM C -478 latest and the engineer as soon after completion of Curbs and gutters Sidewalks and concrete slabs. exterior steps on the drawings is the minimum thickness of the revision' construction as possible. fully compacted subbase. Compaction shall be 2. BENCH MARKS 2 Castings shall be of uniform quality, free 2. MATERIALS accomplished by rolling with a smooth wheeled roller weighing 8 to 10 tons. Compact to 90% Maintain carefully all bench marks, monuments and other reference points; if disturbed or destroyed, contractor from blow holes, porosity, hard spots, shrinkage distortion or other defects. They A. Concrete - Concrete shall be ready -mixed concrete compaction using Standard Testing Procedures. Along curbs, headers and walls and at all placed shall contact engineer. shall be smooth and well - cleaned by shot- blasting or by some other approved method. STORM SEWER SYSTEMS and shall be a mix of proportioned fine and coarse aggregates with Portland cement and water. the roller, the aggregate not accessible the 3. REMOVAL OF TREES They shall be coated with asphalt paint 1. SCOPE OF WORK Minimum cement content shall be 6 bags per cubic material shall a with mechanical tampers or with approved hand tampers. which shall result to a smooth coating, yard of concrete and maximum water content shall A. Remove all trees and stumps from area to be occupied by road and surfaced areas. Removal of tough and tenacious when cold, not tacky or brittle. They shall be gray iron meeting The work under this section includes all storm sewers, storm water inlets, and related items, including be 5.5 U.S. gallons per sack of cement, including moisture in the aggregate. Slump for normal trees outside these areas shall only be done as noted on drawings or approved by the Owner. ASTM A -48 latest revision. Manhole covers for sanitary sewer shall be Neenah Type excavating and backfilling, necessary to complete the work shown on the drawings. weight concrete shall be a maximum of 4 inches and a minimum of 2 inches. the slump of machine CARMEL SPECIFICATIONS R- 1772 -A with f" concealed pickhole. placed concrete shall be no less than 1 -1/4 B. All brush, stumps, wood and other refuse from the 2. MATERIALS inches nor more than 3 inches. Standard test trees shall be buried onsite or removed to disposal areas off of the site. Disposal by burning shall not 3. Joints - manhole sections shall be jointed with sealed "o" rings. The "o" rings shall A. Storm Sewers ASTM C -143 shall be used to measure slump. Compressive strength of concrete at 28 days shall STORM SEWERS be permitted unless proper permits are obtained meet ASTM C -443 latest revisions. be 4000 psi. All exterior concrete shall have air entrainment of 5% to 8% by volume per ASTM C Bedding, Haunchin , Initial Backfill g• g (where applicable). The location of on site bury its shall be designated b the owner or the P 9 Y 4. Bismatic coating shall be applied around I. Reinforced concrete sewer pipe shall confirm P P to ASTM C -76 latest revision, with joints -260. Retempering of delivered concrete will not Bedding, haunching, and initial backfill for all RCP installations shall be B- Borrow for Structure Backfill meeting the material Engineer. each manhole Joint from 6 inches above to 6 conforming to ASTM C -443 latest revision. be allowed. Concrete shall be composed of: requirements of the INDOT. Bedding shall be placed in the 4. PROTECTION OF TREES inches below each joint. Inside joints to be filled with precaat plug material. When storm pipe is submerged 1. Portland cement - Conforming to ASTM C -150, trench bottom such that after the pipe is installed to grade there 4 -inch minimum depth of material A. General Protection: The Contractor shall be 3. APPLICATION B. Manholes Type IA or Type IIIA. 2. Aggregates: Conforming to ASTM C -33 and line, remains a below the pipe barrel and a minimum of 3- inches below the bell. For pipe sizes 66- inches and larger, the minimum depth responsible for the protection of tops, trunks and roots of existing trees on the project site trees A. Permits and Codes - The intent of this section of the specifications is that the contractors bid on 1. Precast reinforced concrete manhole sections and steps shall conform to ASTM C -478 latest 3. Water - Shall be dear and free from of material below the pipe barrel shall be 6- inches. Bedding, haunching and initial backfill shall be compacted in 6 -inch that are to remain. Existing subject to construction damage shall be boxed, fenced or the work covered herein shall be based upon the revision injurious amounts of oils, acids, alkalizes, maximum lifts to not less than95% Standard Proctor Density otherwise protected before any work is started; do not stockpile within branch spread. Remove drawings and specifications but that the work shall comply with all applicable codes and 2. Casting shall be of uniform quality, free from organic materials or other deleterious substances. for the entire depth of the material placed. The backfill shall be brought up evenly on both sides of the pipe for th full interfering branches without injury to trunks and scars with tree regulations as amended by any waivers. Contractor shall furnish all bonds necessary to get permits blow holes, porosity, hard spots, shrinkage distortion or other defects. They B. Welded Steel Wire Fabric -Where required for length of the pipe. Haunching shall extend to the springline of the pipe. The limit of initial backfill shall be 6- inches P P cover paint. for cuts and connections to existing sewers. shall blastin smooth by some other approved method. concrete reinforcement shall conform to ASTM A185. above the s tin lip Minimum trench width shall be the P 9 g 5. HANDLING OF TOPSOIL B. Local Standards -The term "local standards" as They shall be coated with asphalt paint which shall result in a smooth coating, C. Joint Filler - Shall be of non outside diameter of the pipe plus 18- inches. Final Backfill A. Remove all organic material from the areas to be occupied by buildings, roads, walks and parking used herein means the standards of design and construction of the respective municipal tough and tenacious when cold, not tacky or brittle. They shall be gray iron meeting - extruding type meeting ASTM D -544 except that -extruding premouctio joint filler used in concrete walk Final backfill for all RCP installations under and within 5 -feet of pavement shall be B- Borrow for Structure Backfill meeting areas. Pile and store topsoil at a location department of utiit company. I f " n ASTM A -48 latest revision. construction may be either non - extruding or resilient. the material requirements of the INDOT and shall be q where it will not interfere with construction compacted in inch maximum lifts not less than operations. Topsoil shall be reasonably free from subaoi, debris, weeds, grass, stones, ect. C. Existing Improvements - Maintain in operating condition all active utilities, sewers and other 3. Joints - Manhole sections shall be jointed jo with rubber type gaskets. The rubber type D. Bituminous Pavement Materials -All materials re at Standard Proctor Density for the entire depth of the material or Y P top laced. The backfill for the t 6- inches of the excavation B. After completion of site grading and subsurface drains encountered in the sewer installation. Repair to the satisfaction of the owner any damage gaskets shall meet hole Cd storm latest revision. When manhole and storm pipe are proposed for the construction of bituminous pavements shall comply with the Indiana Department P P Y eP P below the start of the aggregate subbase of the pavement be No. 53 Stone meeting the material requirements of utility installation, top soil shall be replaced to existing active Improven ents. continuously in water. of Transportation specifications, per latest revision. shall the INDOT and shall be compacted to not less than 95% in areas designated on the erosion control plan for seeding and /or sodding. Any remaining top D. Workmanship - To conform to all local, state and codes and to be approved by all local and C. SUBDRAINS E. Compacted Aggregate Subbase: Shall be crushed Standard Proctor Density. Final Backfill for all RCP installations greater than 5 -feet of soil shall be used for finished grading around structures and landscaping areas. national state agencies having jurisdiction. 1. Perforated plastic pipe subdrains shall stone or gravel. Crushed gravel shall be a minimum of 35% crushed material. Chert shall be pavement shall be dean fill material free of rocks larger than 6- inches in diameter, frozen lumps of soil, wood or other E. Trenching - Lay all pipe in open trenches, except conform to ASTM F -405. limited to a maximum of 8% of the total. Material extraneous material, compacted in 12 -inch maximum lifts to 6. DISPOSITION OF UTILITIES: when the local authority gives written permission 3. APPLICATION shall be free from an excess of flat, elongated, not less than 9OX Standard Proctor Density for the entire for tunneling. Open the trench sufficiently ahead thinly laminated, soft or disintegrated pieces; depth of the excavation. A. Rules and regulations governing the respective utilities shall be observed in executing all work of pipe - laying to reveal any obstructions. The width of the trench shall be the inside pipe A. Permits and Codes - The intent of this section of the specifications is that the contractor's bid on and shall be free from fragments coated with dirt. Compacted aggregate shall be graded as follows: WATER AND SEWER UNDER CITY STREETS under this section. diameter plus 24 inches for 12 inches above the Sheet and brace trench as necessary to the work covered herein shall be based upon the SIEVE SIZE X PASSING B. If active utilities are encountered but not shown pipe. protect workmen and adjacent structures. All drawings and specifications but that the work shall comply with all applicable codes and P Y aPP 1 -1/2" 110 Bedding, .Initial Backfill g g Bedding, haunching and initial backfill materials, placement and on the drawings, the Engineer shall be advised g g before work is continued. trenching to corn with Occupational Safety and 9 PIY Pa Y Health Administration Standards. Keep trenches regulations as amended by any waivers. Contractor shall furnish all bonds necessary to get permits 1 " 80 -100 compaction for water mains, water service laterals, sanitary free from water while construction is in progress. P � for cuts and connections to existing sewers. 3/4 70-90 1/2 55-80 mains and sanitary service laterals shall be in accordance with the standard practice of the utility that has jurisdiction over C. Inactive and abandoned utilities encountered in excavating and grading operations shall be Under no circumstances shall pipe or appurtenances be laid in standing water. Conduct the discharge B. Local Standards - the term "Local Standards" as #4 35-60 the installation. reported to the Engineer. They shall be removed, plugged or capped as directed by the Utility from trench dewatering to drains or natural drainage channels. used herein means the standards of design and construction of the respective municipal #8 25-50 #30 12 -30 Final Backfill Final Backfill for water mains. water service laterals, sanitary *' Company and the Engineer. department or utility company. #200 5 -10 mains and sanitary service laterals under and within 5 -feet of F. Special Supports - Whenever, In the opinion of the pavement shall be B- Borrow for Structure Backfill meeting the D. It shall be the responsibility of each contractor Engineer, the soil at or below the pipe grade C. Existing Improvements - Maintain in operating 3. APPLICATION material requirements of the INDOT and shall be compacted in to verify all existing utilities and conditions pertaining to his phase of the work. It shall p g p Is unsuitable for supporting sewers and appurtenances specified In this section, such condition all active utilities, sewers and other drains encountered in the sewer installation. A. Grading Do any necessary grading in addition to 6 -inch maximum lifts to not less than 95% Standard Proctor Density for the entire depth of the material placed. The also be the contractors responsibility to contact special support, in addition to those shown or Repair to the satisfaction of the owner an damage ep y g that performed in accordance with Earthwork f Section. bring after final backfill for the top 6- inches of the excavation below the start the owners of the various utilities before work specked, shall be provided as the Engineer may P 9 Y direct. the contract will be adjusted. to existing active improvements. a requdes. compaction, to the required races and sections o P 9u 9 of the aggregate subbase of the pavement shall be No. 53 Is started. and for site improvement. Stone meeting the material requirements of the INDOT and 7. SITE GRADING: G. Backfilling - for a depth of at least 12 inches 8 D. Workmanship - To conform to all local. state and national codes and to be approved by all local and B. Preparation of Subgrade - Remove spongy and shall be compacted to not less than 95% Standard Proctor Density. If the standard practice of the utility that has A. Grades: Contractor shall perform all cutting, above the top of the pipe, backfill with No. stone. Compact this backfill thoroughly, state agencies having jurisdiction. otherwise unsuitable material and replace with traffic be jurisdiction over the installation has a more stringent final backfill requirement, the more stringent requirement shall filing, compacting of fills and rough grading required to bring entire project area to grade as taking care not to disturb the pie. for the remaining trench depth, backfill with earth or E. Trenching -Lay all pipe in open trenches, except when the local authority gives written permission stable material. No will allowed on prepared subgrade prior to paving. govern. shown on the drawings. granular material containing stones or rocks not larger than 4 inches. Backfill under and within for tunneling. Open the trench sufficient ahead of pipelaying to reveal any obstructions. The C. Compaction of Sub rode -The first 6 inches below subgrade MINIMUM COVER FOR PIPE CROSSINGS OF CITY STREETS B. Rough Grading: the tolerance for paved areas 5' of walks, parking areas, driveways and streets width of the trench shall be the inside pipe the shall be compacted to at least 100% of the maximum dry density as determined by the shall not exceed 0.10 feet plus or minus above the established subgrade. All other areas shall shall be granular material only - thoroughly compacted, by approved methods. diameter plus 24 inches for 12 inches above the pipe. Sheet and brace trench as necessary to provisions of AASHO T -99. Water shall be prevented from standing on the compacted subgrade. For installation of Storm Mains, Water Mains, Sanitary Mains, Water Service Laterals, Sanitary Service Laterals under City not exceed 0.10 feet plus or minus the established grade. All banks and other breaks in H. Flow Channels - The flow channels within manholes protect workmen and adjacent structures. All trenching to comply with Occupational Safety and D. Utility Structures - Check for correct elevation streets, regardless of the jurisdiction of the utility, the minimum cover from the top of the installed pavement to the grade shall be rounded at top and bottom. shall be an integral part of the precast base. The channels shall be shaped and formed for a Health Administration Standards. Keep trenches free from water while construction is in progress. of all manhole covers, valve boxes and similar top of the installed pipe shall be the pavement section C. Compaction Requirements: clean transition with proper hydraulics to allow Under no circumstances lay pipe or appurtenances structures located within areas to be paved, and make, or have made, any necessary adjustments in thickness (all bituminous and aggregate material above the ". the smooth conveyance of flow through the manhole. in standing water. Conduct the discharge from subgrade) plus 1 -0 If the standard practice of the utility 1. All building pad areas shall be compacted to The bench wall shall be formed to the crown of the "U" trench dewatering to drains or natural drainage such structures. that has jurisdiction over the installation has a more stringent standards specified by local and /or state inlet and outlet pipes to form a shaped channels E Placing Concrete cover requirement, the more stringent requirement shall building codes. channel. The bench wall shall slope back from the govern. crown at 1/2 inch per foot to the manhole wall. F. Special Supports - Whenever in the opinion of the 1. subgrade - Place concrete only on a moist, 2. For compaction requirements of paved areas, see street specifications. I. Infiltration -The contractor shall furnish Engineer the soil at or below the pipe grade is unsuitable for supporting sewers and appurtenances compacted subgrade or base free from loose necessary equipment to teat sewers f or specified In this section, such special support, material. Place no concrete on a muddy or frozen subgrade. infiltration. Infiltration rotes shall not exceed in addition to those shown or specified, shall be the Local Standards. All sanitary sewer lines upon completion will be required to pass a low provided as the Engineer may direct, and the contract will be adjusted. 2. Forms - All forms shall be free from warp, pressure air test, unless otherwise directed by tight enough to prevent leakage and the City of Carmel. Said test shall be conducted substantial enough to maintain their shape NOTE: according to NCPI Standard Method, and shall be and position without springing or settling. witnessed by an Inspector authorized by the City when concrete is placed. Forms shall be MINIMUM COVER OVER TOP OF ALL of Carmel. Infiltration under teat shall not exceed 200 gallons per inch of inside diameter of dean and smooth immediately before concreting. WATERMAINS TO BE 54" FROM FINISH GRADE. sewer pipe per mile of sewer in 24 hours and inclusive of all appurtenances within the section being tested such as manholes, house connections, etc. r>� A g�a (7° 0 �z W Z O U_ LL U ^W a_ W 0 N W H kn N Cl) W rn > Q _ Q X > o Q n W z � __ J J -r Cl) p 7 U Q Z Q N N p Z v 2 � J M N D Lii Z to c �• 1J r3 . Z WW UU)Q J D�Z JQWQ ~W0 ZWW Z I..L r^ 0 VJ -J Z �- W O OVJ2 =UWEt LL <E< W W�U W M r F_ C111� /f���'i �,R ,...,;UPp ,� �ISTO... No. PE19800489 STATE OF sS/ONAt11���`� BY: DATE: SHEET C901 OF 8 JOB #: DAX.002