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HomeMy WebLinkAbout79-96.191 I 2 I 3 i 4 I 5 I 6 7 ff L K J H G F E F7 C UD B rn rn _Ln m r� M 0 Cn a C_ I A o M CJ Cn CD 3 O V CD 1 EARTHWORK 1. SCOPE OF WORK A. Extent: The work required under this section consists of all excavating, filling, rough grading and related items necessary to complete the work Indicated on the drawings and described in the specifications. The Contractor shall notify in writing the owners and the Engineer of any changes, errors, or omissions found on the plans or in the field, before work is started or resumed. 1. In general, the items of work to be performed under this section shall include: clearing and grubbing, removal of trees and stumps (where 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 dump and length of haul shall be the Contractors responsibility. 3. Provide and place any additional fill material from off the site as may be necessary to produce the grades required. Fill obtained from off site shall 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 included in other sections of these specifications: 1. Excavation, grading and backfilling for utility lines 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 reference points; if disturbed or destroyed, contractor shall contact engineer. 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. All brush, stumps, wood and other refuse from the trees shall be buried onsite or removed to disposal areas off of the site. Disposal by burning shall not be permitted unless proper permits are obtained (where applicable). The location of on site bury pits shall be designated by the owner or the Engineer. 4. PROTECTION 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 score with tree point. 5. HANDLING OF TOPSOIL A. Remove all organic material from the areas to be occupied by buildings, roads, walks and parking areas. Pile and store topsoil at a location where it will not interfere with construction operations. Topeoll shall be reasonably free from subsoil, debris, weeds, grass, stones, ect. B. After completion of site grading and subsurface utility installation, top soil shall be replaced in areas designated on the erosion control plan for seeding and /or sodding. Any remaining top soil shall be used for finished grading around structures and landscaping areas. 6. DISPOSITION OF UTILITIES: A. Rules and regulations governing the respective utilities shall be observed in executing all work under this section. B. If active utilities are encountered but not 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 Engineer. They shall be removed, plugged or capped as directed by the Utility Company and 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 utilitles before work is started. 7. SITE GRADING: A. Grades: Contractor shall perform ail 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 plus or minus the established grade. All banks and other breaks in grade shall be rounded at top and bottom. C. Compaction Requirements: I. All building pad areas shall be compacted to standards specified by local and /or state building codes. 2. For compaction requirements of paved areas, see street specifications. 2 3 4 8. Earth Work Balance 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 stockpiling. removal or importing of earth. 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 calculations of the Engineer In determining earthwork quantities shall be ac- complished in accordance with the American Society of Civil Engineers Standards for such calculations. Further, that these calculations are subject to the Interpretations of sot borings as the physical limits of the various soil types, also the allowable 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 materlds occurs, the contractor shall contact the engineer to determine if adjustment can be made to correct the imbalance of earth. SANITARY SEWER SYSiW 1. SCOPE OF WORK The work under this section includes all sanitary sewers, manholes, demouts and related items Including excavating and bodcfiliing, necessary to complete the work shown in the drawings, starting five feet outside the building walls. The ends of sewers shall be tightly plugged or capped at the temmind points, adjacent to buildings, pending the connecting of all such lines to the building drain as specified in the plumbing specifications and architectural drawings. 2. MATERIALS A. Sanitary Sewers 1. All gravity plastic sewer pipe and fittings shall conform to ASTM D3034. SDR -35 and meet a cell classification of 12454 8 in accordance with ASTM 1784. B. Manholes 1. Precast reinforced concrete manhole sections and steps shall conform to ASTM C -478 latest revision. 2. Castings 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 - biasting or by some other approved method. They shall be coated with asphalt point which shall result in a smooth coating. tough and tenacious when cold. not tacky or brittle. They shal be gray iron meeting ASTM A -48 latest revision. Manhole covers for sanitary sewer shall be Neenah Type R- 1772 -A with "f" conceded pIckhohL 3. Joints - manhole sections shall be jointed with seded "o rings. The "o" rings shill most ASTM C -443 latest revisions. 4. Bismatic coating shall be applied around each manhole joint from 6 Inches above to 6 inches below each joint. Inside joints to be filled with precast plug material. 3. APPLICATION A. Permits and Codes - The intent of this section of the specifications is that the contractors bid on the work covered herein shall be based upon the drawings and specifications but that the work shall comply with ail applkoble codes and regulations as amended by any waivers. Contractor shalt furnish all bonds necessary to get permits for cuts and connections to existing sewers. B. Local Standards - The term "lord standards" as used herein means the standards of design and construction of the respective municipal department of utility company. C. Existing Improvements - Maintain in operating condition all active utilltie% sowers and other drains encountered in the sewer Installation. Repair to the satisfaction of the owner any damage to existing active improvements. D. Workmanship - To conform to ail local. state and national codes and to be approved by all lood and state agencies having jurisdiction. E. Trenching - Lay all pipe in open trenches, except when the local authority gives written permission for tunneling. Open the trench sufficiently ahead of pips - laying to roved any obstructions. The width of the trench shah be the inside pipe diameter plus 24 inches for 12 inches aboMS the pipe. Sheet and brace trench as necessary to trenching to comply with n with Occupational SaMy and Health Administration Standards. Keep trendnes free from water while construction to in progress. Under no circumstances shop pipe or appurtenances be laid in standing water. Conduct the discharge from trench dewatering to drains or noturd drainage channels. F. Special 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 providW s the � may ci�and te contract i adjusted. G. Badcfilling - for a depth of at least 12 inches above the top of the pipe, backfill with No. 8 stone. Compact this backfill thoroughly. taking care not to disturb the pipe. For the remaining trench depth, backfM with earth or granular material containing stones or rocks not larger than 4 inches. Backfill under and within 5' of walks, parking areas. driveways and streets shall be granular material only - thoroughly compacted, by approved methods. H. Flow Channels - The flow channels within manholes shall be an integral part of the precast base. The channels shall be shaped and formed for a dean transition with proper hydraulics to allow the smooth conveyance of flow through the manhole. The bench wall shall be formed to the crown of the inlet and outlet pipes to form a "U" shaped channel. The bench wall shall slope back from the crown at 1/2 inch per foot to the manhole wall. I. Infiltration - The contractor shall furnish necessary equipment to test sewers for infiltration. Infiltration rates shall not exceed the Local Standards. All sanitary sewer lines upon completion will be required to pass a low pressure air test unless otherwise directed by the City of Carmel. Said test shall be conducted according to NCPI Standard Method, and shall be witnessed by an inspector authorized by the City of Camel. Infiltration under test shop not exceed 200 gallons per inch of inside diameter of 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. 5 1 6 1 7 8 9 1 10 1 11 12 J. Flushing Sewers -Flush all sanitary sewers except G. Backftlling - for a depth of at least 12 inches 3. Placing Concrete - Concrete shall be building sewers with water s obtain free flow above the top of the pipe, backfill with earth or deposited so as to require as little slit and trash from granular material free from large stones, rode rehandling as practicable. When concrete is through each line. Remove all s appurtenances Just prior to acceptance trash work. fragments. roots or sod. Tamp this backfill to be placed at an atmospheric temperature of thoroughly, taking care not to disturb the pipe. 35 degrees F. or less, paragraph 702.10 of K. Plastic Sewer Pipe Installation - Plastic sewer For the remaining trench depth, backfill with the Indiana Department of Transportation pipe shall be installed in a accordance with ASTM earth or granular material containing stones or Specifications latest revision shall be D2321 per latest revision and no plastic pipe rocks not larger than 4 inches. Backfiil under followed. shall exceed a deflection: of 5X. and within 5' of walks, parking areas, driveways and street shall be granular material only - F. Concrete Curb L Storm Water Connections - No roof drains, footing thoroughly compacted by approved methods. o 1. Expansion Joints -Shall be 1/2 inch thick and /o r surface water drains may be connected the sanitary sewer systems, inducing H. Manhole Inverts - Construct manhole flow channels premoulded between storm structures do curb. 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 Inside diameter of the connecting sewers. Make provided. contraction Joints shall be now M. Waterline Crossing -Where water lines and ed ter lines lines cannot be changes in size or grade gradually and changes in or scored Joints spaced 10 feet on center. except for sanitary sewers cross and water of 18 inches direction by true curves. Provide such channels intersection radii where joints shall be placed 5' o.e. placed above the sewer with t vertical clearance, the sewer must be constructed for all connecting sewers at each manhole. l 3. Finish -Tamp and screed concrete as soon as of water works grade ductil e iron pipe with mechanical Joints within 1 feet pi the water I. Subdrains - All subdrains shall be of the size placed. and fill any honey combed places. line. shown on the plans and shall be constructed to the Finish square comers to 1/4" radius and grades shown. All drains constructed off -site as other comers to radii shown. N. Utilities - It shall be the responsibility of part of the outlet drain will be located as shown. G. Concrete Walks and Exterior Steps each contractor to verify all existing utilities and conditions pertaining t l his phase of the J. Utilities - It shall be the responsibility of each work. It shall also be the contractors contractor to verify all existing utilities and 1. Slopes - Provide 1/4 inch per foot cross work. responsibility shall l contact the owners contractors the conditions pertaining to his phase of the work. slope. Make adjustments in slopes at walk various utilities before work is started. The It shall also be the contractors responsibility to intersections as necessary to provide proper contractor shall notify in writing the owners and contact the owners of the various utilities before drainage. the engineer of any changes, errors or omissions work is started. The contractor shall notify in found on these plena or in the field before work writing the owners or the engineer of any changes. 2. Dimensions - Walks and steps shall be one Is started or resumed. errors or omissions found on these plans or in the course construction and of widths and details field before work is started or resumed. shown on the drawings. 0. Service Laterals - Individual lot service lines K. Contractor to grout Joints inside storm 3. Finish - Screed concrete and trowel with a shall be 6" in diameter and of material equal to structures where pipes enter or exit steel trowel to a hard dense surface after that specified in 2A of this section. Service and between structure and costing. surface water has d medium lines shall be connected to the main sewer by a iibe control Joints wye at locations shown on plan do profile sheets. broom fining and scribe control joints at 5 foot spacing. Provide 1/2" expansion joints Unless otherwise noted, lateral ends shall be extended to edge of easement. Location of laterals shall be where sidewalks intersect, and maximum marked on curb by stamping curb with "SA" at time spacing of 48 feet between expansion joints. of curb placement. Letters shall be Y in height SETS painted with green paint after concrete is cured. do H. Curing Concrete - Except as otherwise specified. Ends of lines shall be marked with a wood 4x4 cure all concrete by one of the methods described painted green. in Section 501.17 of the Indiana Department of 1. SCOPE OF WORK Transportation Specifications, latest revision. 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 from nearest downstream manhole measured along concrete and bituminous paving and related items pavement shall be as specified M Section 403 of the sanitary sewer main. The locations of necessary to complete the work indicated on drawings the Indiana Deportment of Tror►sporil l not manholes and service lines along with any other and described in the specifications, including but not Specifications latest revisions. Pavinng g will construction changes are to be incorporated on limited to: be permitted during unfavorable weather when the original construction drawings and "Record the temperature is 40 degrees F. and falling. Drawing prints submitted to the City of Carmel All streets, parking areas in contract limits and the engineer as soon after completion of Curbs and gutters J. Compacted Aggregate Subbase - the thickness shown construction as possible. Sidewalks and concrete slabs, exterior steps on the drawings is the minimum Comp thickness of the Comp fully compacted subbase. action shill be 2. MATERIALS accomplished by railing with a smooth wheeled roller weighing 8 to 10 tons. Compact to 90% A. Concrete - Concrete shall be ready -mixed concrete compaction using Standard Testing Procedures. STORM SEWER SYSTEMS and shall be a mix of proportioned fine and Along curbs. headers and walls and at all placed coarse aggregates with Portland cement and water. not accessible to the roller. the aggregate Minimum cement content shall be 6 bags per cubic material shall be tamped with mechanical tampers 1. SCOPE OF WORK yard of concrete and maximum water content shall or with approved hand tompers. The work under this section includes all storm sewers, be 5.5 U.S. gallons per sack of cement, including storm water inlets, and related items, including moisture to the aggregate. Slump for normal excavating and backfilling, necessary to complete the weight concrete shall be a maximum of 4 inches work shown on the drawings. and a minimum of 2 inches. the slump of machine placed concrete shall be no less than 1 -1/4 2. MATERIALS inches nor more than 3 inches. Standard teat NeyWon8 ASTM C -143 shall be used to measure slump. A. Storm Sewers Compressive strength of concrete at 28 days shall be 4000 pat. All exterior concrete shall have 1. Reinforced concrete sewer pipe shall confirm air entrainment of 5% to 8% by volume per ASTM C to ASTM C -76 latest revision, with joints -260. Retempering of delivered concrete will not conforming to ASTM C -443 latest revision. be allowed. Concrete shall be composed of: When storm pipe is submerged 1. Portland cement - Conforming to ASTM C -150, B. Manholes Type IA or Type IIIA. 1. Precast reinforced concrete manhole sections 2. Aggregates: Conforming to ASTM C -33 and steps shall conform to ASTM C -478 latest 3. Water - Shall be clear and free from revision. injurious amounts of oils, acids, alkalizes, 2. Casting shall be of uniform quality, free organic materials or other deleterious from blow holes, porosity, hard spots. substances. shrinkage distortion or other defects. They B. Welded Steel Wire Fabric - Where required for shall be smooth and well cleaned by shot concrete reinforcement shall conform to ASTM A185. - blasting or by some other approved method. They shall be coated with asphalt paint C. Premoulded Joint Filler - Shall be of non which shall result In a smooth tooting. - extruding type meeting ASTM D -544 except that tough and tenacious when cold, not tacky or hall be gray iron meeting premoulded joint filler used in concrete walk brittle. They s ASTM A -48 lotall revision. construction may be either non - extruding or resilient. 3. Joints - Manhole sections shcdl be jointed D. Bituminous Pavement Materials - All materials with rubber type gaskets. The rubber type �� G -»• �� gaskets shall meet ASTM C -443 latest proposed for the construction of bituminous ��� '.., �G1STI:RF,. revision. When manhole and storm pipe are pavements shall comply with the Indiana Deportment S ., A' 0 O'+,_ continuously in water. of Transportation specifications, per latest• revision. - 5 C. SUBDRAINS E. Compacted Aggregate Subbase: Shall be crushed %� t 20E `O =4 99re9 � � '. STATE OF e � 1. Perforated plastic pipe subdrains shall stone or gravel. Crushed gravel shall be a �O,n .., (�, conform to ASTM F -405. minimum of 3579 crushed material. Chert shall be �����'.,�A„y,DIAN�..• °�.` limited to a maximum of 879 of the total. Material 3. APPLICATION shall be free from an excess of flat. elongated, thinly laminated. soft or disintegrated pieces; A. Permits and Codes - The intent of this section of and shall be free from fragments coated with dirt. the specifications is that the contractors bid on Compacted aggregate shall be graded as follows: the work covered herein shall be based upon the SIEVE SIZE X PASSING drawings and specifications but that the work shall comply with all applicable codes and CERM BY 4 regulations as amended by any waivers. Contractor • 1 /2 80- 1100 shall furnish oil bonds necessary to get permits for cuts and connections to existing sewers. 3/4 " 70-90 1/2" 55-80 11% UPAN G AM TIE WA OESIgIS AND CIDWi'S 0011140 B. Local Standards -the term "Local Standards" as #4 35 -60 N91131 ME l E F�eaIM N1�tECNAt PRMgW OF 501111M 25 -50 00006 Off== NO ARE WT i0 K IISiD OR WR00= used herein means the standards of design and #8 12 -30 IN rMI01.E OR N PART, ■1lW 111E UUM COttSi IT OF SNE1 R construction of the respective municipal #00 5-10 DOEMIS 001111WINK department or utilit company. Corpora ft Existing Improvement - Mai fain in operating 3. APPLICATION ©19�. St�lflal�f �Jl9ifle� �' �"' V� condition all active utilities, sewers and other A. Grading - Do any necessary grading in addition to drains encountered in the sewer installation. Schn6iff Repair to the satisfaction of the owner any damage that performed in accordance with Earthwork to existing active improvements. Section, to bring subgrodes, after find • • compaction. to the required grades and sections D. Workmanship - To conform to all local, state and for site Improvement. 19 national codes and to be approved by all local and state agencies having jurisdiction. B. Preparation of Subgrode -Remove spongy and o coi therwise unsuitable material and replace with w,��, E. Trenching - Lay all pipe in open trenches. except stable material. No traffic will be allowed on when the local authority gives written permission prepared subgrods prior to paving. for tunneling. Open the trench sufficient ahead C. Compaction of Subgrade - The first 6 inches below 3020 North Post Road Engineering of pipelaying to reveal any obstructions. The the subgrade shall be compacted to at least 100% Indianapolis, Indiana Surnying width of the trench shall be the Inside pipe of the maximum dry density as determined by the 46226-0068 landscape Architectare diameter plus 24 inches for 12 Inches above the pipe. Sheet and brace trench as necessary to provisions of AASHO T -99. Water shill 317 -898 -8282 GIS a US protect workmen and adjacent structures. All prevented from standing on the compacteed el subgrade. 317- 899 -8010 Fax Geology trenching to comply with Occupotiopol Safety and D. Utility Structures - Check for correct elevation Health Administration Standards. Keep trenches of all manhole covers, valve boxes and similar free from water while construction is in progress. structures located within areas to be paved, and A partnered Bntity with Bohlen, Meyer, Gibson h Associates, ifnow7orsted Under no circumstances lay pipe or appurtenances in standing water. Conduct the discharge from make, or have made, any necessary adjustments in trench dewatering to drains or natural drainage such structures. channels. E. Placing Concrete PIAJI[ CREBB DBVELOPMENT COMPANY IZC F. Special Supports - Whenever in the opinion of the PLUM CM NORTH SEMON 4 Engineer the soil at or below the pips grade is 1. Subgrode -Place concrete only on a moist, unsuitable for supporting lowers and appurtenances compacted subgrade or base free from loose IIAIOI,TON COUNTY, INDIANA specified to this section. such special support. material. Place no concrete on o muddy or In addition to those shown or specified. shall be frozen subgrade. provided as the Engineer may direct. and the 2. Forms - All forms shall be free from warp. SPECIFICATIONS contract will be adjusted. tight enough to prevent leakage and substantial enough to maintain their shape and position without springing or settling. when concrete is placed. Forma shall be Date Project No. Drawn Approv. dean and smooth immediately before 90414 PRC concreting. Completer Piles Sheet No. .k \904\DMIGS \41 \C901 / -all 8 I 9 1 10 1 11 1 12 1 13 1 14 1 15 M L K J H G F L Er C 7