WPC  2QBVROZ!|d 5f@8,%8?f\  P6G;?P"m+^8AM``AAA`k2A26``````````66kkkTwkAIwkkwwA6AX`AT`T`TA``66`6````AI6````T\&\hA2hXAAA2AAAAAAAA`6TTTTT}TwTwTwTwTA6A6A6A6``````````T`^```k`TTTTTTTywTwTwTwT````````A6A6A6A6kI`w6wMw6wAw6`q````AAAkIkIkIkIwQw6w6```````wTwTwT`w6`AkIw6``y``2``@#@WddddddddddddddddddddddddddddddddddddddddNEssEX`AT`````6=`:=`:AATT`BBs``uEssErkkAT`:"`soh`kss`HP LaserJet 4HPLAS4.PRS 4?f\  P6G;\#n?P2rO$  X` hp x (#%'0*,.8135@8:, P age,  s5J  F ooter, B , E dit. Delete the "Project Name (ftr B)" text and replace  s5 it with the name of the project (bolded) . , until you arrive at the document text.(# D.The Guide Specifications are being reviewed and revised. Your technical comments on any guide spec would be greatly appreciated.(#  s5  DRAWING DATA REQUIRED: Add Work Data Sheet, location, and detail drawings as needed, in addition to the following items: 1.Plan and location of all new pipelines, including type of service and size of pipe.(# 2.Location, size, and type of service of existing connecting, intersecting, or adjacent pipelines and other utilities.(# 3.Paved areas and railroads which pass over new pipelines.(# 4.Profile, where necessary to show unusual conditions.(# 5.Invert elevations at beginning and end of pipelines and at manholes or similar structures.(# 6.Class or strength of pipe and limits for same where class or strength will be different for different sections of pipeline. Provide shape requirements if different shapes available.(# 7.Design details for pertinent manholes, catch basins, curb inlets, and head walls.(#  s4N!  REVISIONS OF THIS SECTION:  r5!  CSI format, editorial changes: 8/97 Metric: Technical Update: 9/97 POINT OF CONTACT: Joe Kuka Phone: (303) 2369512#0*(( 5 XM s4 #d `7# `(#LSTORM DRAINAGE Project Name (ftr B)` (#T[4/97] .02630  ă  b-SECTION 02630 0,STORM DRAINAGE PART 1: GENERAL 1.1SUMMARY(# A.Section Includes: [Furnishing] [and] [Installing] storm drainage piping and appurtenances.(# B.Related Sections:(# ************************************************** USE EITHER 01009 OR 01010. EITHER SECTION 01330 OR 01458 MUST BE USED WHEN 01010 IS USED. ************************************************** General Information and Requirements(#`(#MSection 01009 Summary of Work(#`(#MSection 01010 Government Furnished Property(#`(#MSection 01019 Submittal Procedures(#`(#MSection 01330 Certificates(#`(#MSection 01331 1.2SUBMITTALS(# A.General: Submittals shall be according to [Section 01009 General Information and Requirements.] [Section 01330 Submittal Procedures.] [and] [Section 1331 Certificates.](# B.Manufacturer's Catalog Data: Submit three copies each of the following contractor furnished items that are to be used on this project:(# ***************************************************** DELETE THE ITEMS THAT ARE BEING PROVIDED AS SUBMITTALS IN OTHER SECTIONS. INSERT TYPES OF PIPING MATERIAL FOR THIS PROJECTFOR EXAMPLE: CAST IRON, CORRUGATED STEEL, PVC, ETC. ***************************************************** 1.` ` [________] pipe including fittings and jointing materials.(#` 2.` ` Grout(#` 3.` ` Mortar(#` 4.` ` Gaskets(#` 5.` ` Compression Joints(#` 6.` ` Manhole Frames/Covers(#` 7.` ` Grating and Frames(#` 8.` ` [Precast Concrete] Manholes(#` 9.` ` [Precast Concrete] Base Slabs(#` 10.` ` Concrete Block(#` 11.` ` Sewer Brick(#` 12.` ` Bituminous Coating(#` 13.` ` Cold Bituminous Mastic Sealer(#` C.Installation Instructions: Submit 3 copies of manufacturer's recommendations for installation procedures of the material to be placed prior to installation.(# D.Certificates of Conformance: Submit three copies of written certification verifying that the Contractorfurnished items below conform to the requirements of this section:(# 1.` ` Pipe(#` 2.` ` Grout(#` }&0*s's'Ԍ3.` ` Mortar(#` 4.` ` Gaskets(#` 5.` ` Compression Joints(#` 6.` ` Manhole Frames/Covers(#` 7.` ` Grating and Frames(#` 8.` ` [Precast Concrete] Manholes(#` 9.` ` Precast Concrete Base Slabs(#` 10.` ` Concrete Block(#` 11.` ` Sewer Brick(#` 12.` ` Bituminous Coating(#` 13.` ` Cold Bituminous Mastic Sealer(#` E.Field Test Reports: Submit three copies of quality control field tests performed in Part 3 of this section for the following:(# 1.` ` Swelling Test(#` 2.` ` Infiltration Test(#` 3.` ` Exfiltration Test(#` 4.` ` Hydrostatic Test(#` 5.` ` Pneumatic Plug Test(#` F.Work Plan: Submit 3 copies of the Work Plan when sewer flow is to be interrupted. Include the following items in the plan:(# 1.` ` Proposed Schedules(#` 2.` ` Methods(#` 3.` ` Materials(#` 4.` ` Equipment(#` G.Samples: Submit 3 each of the following items:(# 1.` ` [______] pipe(#` 2.` ` Gaskets(#` 3.` ` Compression Joints(#` 4.` ` Manhole Frames/Covers(#` 5.` ` Grating and Frames(#` 6.` ` Precast Concrete Manholes(#` 7.` ` Precast Concrete Base Slabs(#` 8.` ` Concrete Block(#` 9.` ` Sewer Brick(#` 10.` ` Bituminous Coating(#` 11.` ` Cold Bituminous Mastic Sealer(#` 1.3DELIVERY, STORAGE, AND HANDLING(# A.Delivery: Inspect materials delivered to site for damage; damaged goods shall be refused. (# B.Storage: Store with minimum of handling. Do not store materials directly on the ground. Store [plastic piping and jointing materials and] rubber gaskets under cover out of direct sunlight. Keep the inside of pipes and fittings free of dirt and debris. (# C.Handling: Handle pipe, fittings, and other accessories in a manner to ensure delivery to the trench in sound undamaged condition. [Take special care not to damage [coating] [and] [lining] on pipe and fittings; if damaged, make repairs.] Carry, do not drag pipe to trench.(# #0*s's'Ԍ-PART 2: PRODUCTS 2.1PIPELINE [AND CULVERT] MATERIALS(# ***************************************************** THE VARIOUS CLASSES DESIGNATE DIFFERENT D-LOADS. WHERE SULFATE-RESISTANT PIPE IS REQUIRED AND CONCRETE PIPE IS TO BE AN OPTION, SPECIFY THE USE OF TYPE II OR TYPE V CEMENT. ***************************************************** A.Cast-Iron Soil Pipe and Fittings: ASTM A 74, service-weight [with -bell and spigot ends].(# 1.` ` Joints: [ASTM C 564, compression type rubber gasket] [AWWA C 111 pushon type].(#` B.Clay Pipe and Fittings: ASTM C 700, [standard strength] [extra strength] [bell-and-spigot piping only]. (# 1.` ` Joint Materials: ASTM C 425.(#` C.Concrete Pipe and Fittings:(# 1.` ` Storm Drainage Pipe: [Nonreinforced concrete pipe conforming to ASTM C 14[M], Class [1] [2] [3].] [Bell and spigot] [_____] ends.] [Reinforced concrete pipe conforming to ASTM C 76[M], Class [I] [II] [III] [IV] [V], or ASTM C 655, [___] D-Load.](#` 2.` ` Culvert Pipe: [ASTM C 14[M] nonreinforced pipe, Class [___]]. [ASTM C 76[M] reinforced pipe, Class [___]]. [ASTM C 506[M] reinforced concrete arch culvert, Class [AII] [AIII] [AIV]]. [ASTM C 507[M] reinforced concrete elliptical culvert, Class [___]].(#` ***************************************************** DELETE BELOW IF COVERED IN CONCRETE SECTION. CASTINPLACE CONCRETE SHOULD NOT BE USED BENEATH STRUCTURES, FOR DRAIN CROSSINGS, ADJACENT TO PAVED AREAS, OR UNDER HIGH FILLS. ***************************************************** 3.` ` CastInPlace Nonreinforced Concrete: ACI 346[R], except that testing shall be the responsibility of and at no additional cost to the Government. [In the case of other conflicts between ACI346[R] and project specifications, requirements of ACI346[R] shall govern.](#` 4.` ` Fittings: Shall of the same strength as the pipe.(#` 5.` ` Joints: [Gaskets and pipe ends for rubber gasket joint shall be according to ASTM C 443[M]. Gaskets shall be suitable for use with sewage.] [Provide primers and lubricants as recommended by the manufacturer. Concrete pipe joints shall be suitable for use with the joint sealants specified.(#` ` ` a.@ @ Butyl gaskets.(#@ ` ` b.@ @ ASTM C 443[M] rubber Oring gaskets.(#@ ` ` c.@ @ AASHTO M 198, Type B preformed plastic gaskets.(#@ ` ` d.@ @ Joint Mortar: ASTM C 270.(#@ D.Corrugated Steel Pipe and Fittings: [AASHTO M 36, Types I and II], [ASTM A 760[M], [ASTM A 762[M], [concrete lined] [fully bituminous coated] [half bituminous coated]. [Bituminous coating shall conform to ASTM A 849.](# 1.` ` Type [I] [II] pipe with [annular] [helical] corrugations.(#` 2.` ` Type [IA] [IIA] pipe with helical corrugations fabricated with a smooth steel liner of Type C precoated sheet with a polymeric coating on both sides of not less than 0.25 mm (0.010 inch) thick conforming to ASTM A 742.(#` 3.` ` Type [IR] [IIR] pipe with helical corrugations.(#` %0*s's'Ԍ4.` ` Fabricate fittings of the same material as the pipe with strength not less than that of the pipe, and having the same size and shape of corrugations as the pipe. Helically corrugated pipe and fittings, when used with hugger-type coupling bands, shall have factory-rolled annular corrugations at each end. [On riveted pipe and fittings the longitudinal seam rivets which would be under the coupling band shall be omitted and that portion of the seam shall be welded.] [Provide [coating] [and] [paving] as follows:(#` 5.` ` Concrete Lining: ASTM A 760 [zinc coated] [aluminum coated] [aluminum-zinc alloy coated] Type [I] [IR] corrugated steel pipe with [annular] [helical] corrugations and a concrete lining in accordance with ASTM A 849. The concrete lining shall be not less than 9.5 mm (3/8 inch) (3/8 inch) over the inside crest of the corrugation.(#` 6.` ` Jointing Devices: Coupling bands as specified in ASTM A 760[M] [ASTM A 762[M]]. The circumference of the band shall be such that when coupled, a 75 mm (3 inch) lap will be provided. [Do not use coupling bands with projections.] Coupling bands shall be bituminous coated to a minimum thickness of 1.25 mm (0.05 inch) [except that coupling bands for polymer precoated pipe shall have [the same polymer precoating as the pipe] [bituminous coating] [the same metallic coating as the pipe only]]. (#`  r5  E.Corrugated Aluminum Pipe and Fittings: ASTM B 745[M] corrugated aluminum alloy pipe. [Corrugation size shall be [____] by [____] mm (inch)] of either:(# 1.` ` Type [I] [II] pipe with [annular] [helical] corrugations. (#` 2.` ` Type [IA] [IR] [IIA] [IIR] pipe with helical corrugations.(#` 3.` ` Fabricate fittings of the same material as the pipe, of strength at least comparable to that of the pipe, and the same size and shape of corrugations as the pipe. [On riveted pipe and fittings the longitudinal seam rivets which would be under the coupling band shall be omitted and that portion of the seam shall be welded.](#` 4.` ` [Bituminous coating shall conform to ASTM A 849 Type [_____].] (#` 5.` ` Jointing Material: Coupling bands shall have the same size and shape corrugations as the piping to which the bands are to be connected and shall conform to ASTM B 745 [M], except that connecting angles shall be omitted and the circumference of the band shall be such that when coupled, a 75 mm (3 inch) lap will be provided. [For hugger-type coupling bands, pipe shall have factory rolled annular corrugations at each end.] [Do not use coupling bands with projections.] For tightening each coupling band, provide four 13 mm (1/2inch) diameter zinc-coated steel rod hoops with silo lugs. Gaskets shall be cylindrical in shape, fabricated of 10 mm thick by 163mm (3/8 inch thick by 6 1/2 inch) minimum; diameter of cylindrical gasket shall be 10 percent less than the nominal pipe diameter.] [Coupling bands may also be hugger type, having a flat central section with a corrugated section near each end designed to mesh with the annular corrugations on the pipe, and with two bolt steel bar-and-strap connectors. Gaskets for use with hugger type bands shall be O-ring type, 30 mm (1 3/16 inch) diameter, conforming to the requirements specified for rubber gaskets in ASTM C 361.(#` F.ABS Composite Plastic Pipe and Fittings: Poly(Vinyl Chloride)(PVC) or Acrylonitrile-Butadiene-Styrene (ABS) composite pipe and fittings, ASTM D 2680.(# 1.` ` Jointing materials: ASTM D 2680 solvent cement and primer or ASTM D 3212 elastomeric gasket joints.(#` }&0*s's'ԌG.Polyvinyl Chloride (PVC) Plastic Piping: ASTM D 3034, SDR 35. Joints shall conform to ASTM D 3212. Gaskets shall conform to ASTM F 477.](# 1. [Polyvinyl Chloride (PVC) Pipe Sized 250 mm (10Inch) Diameter and Smaller: ASTM D 3034, SDR 35, with ends suitable for elastomeric gasket joints. ASTM F 949 with solvent cement joints or elastomeric gasket joints. ASTM D 3212 elastomeric gasket joints, ASTM D 2564 solvent cement joints and ASTM F 477 gaskets.](# H.Corrugated Plastic Piping: [Corrugated poly(vinyl chloride) (PVC) pipe conforming to ASTM F 794] [or] [corrugated, high density polyethylene pipe (HDPE) conforming to] [AASHTO M252] [or] [AASHTO M294, Type [_____]]. [PVC fittings with solvent cemented components shall conform to ASTM D 2855 and ASTM F 402.](# 1.` ` Joints and Jointing Materials: [ASTM D 3212 for PVC pipe joints] [or] [manufacturer's recommendations for HDPE joints].(#` (# I.PE Piping: The pipe manufacturer's resin certification indicating the cell classification of PE used to manufacture the pipe shall be submitted prior to installation of the pipe. The minimum cell classification for polyethylene plastic shall apply to each of the seven primary properties of the cell classification limits in accordance with ASTM D 3350.(# 1.` ` Smooth Wall PE Pipe: ASTM F 714, maximum DR of 21 for pipes 80 to 600 mm (3 to 24 inches) in diameter and maximum DR of 26 for pipes 650 to 1200 mm (26 to 48 inches) in diameter. Pipe shall be produced from PE certified by the resin producer as meeting the requirements of ASTM D 3350, minimum cell class 335434C.(#` ***************************************************** CORRUGATED PE PIPE CULVERTS AND STORM DRAINS SHALL NOT BE INSTALLED BENEATH AIRFIELD PAVEMENTS, CLASS A, B, OR C ROADS, OR ROAD PAVEMENTS WITH A DESIGN INDEX OF 6 OR GREATER. TYPE S PIPE HAS A FULL CIRCULAR CROSS-SECTION, WITH AN OUTER CORRUGATED PIPE WALL AND A SMOOTH INNER LINER. TYPE C PIPE HAS A FULL CIRCULAR CROSS-SECTION, WITH A CORRUGATED SURFACE BOTH INSIDE AND OUTSIDE. CORRUGATIONS MAY BE EITHER ANNULAR OR HELICAL. ***************************************************** 2.` ` Corrugated PE Pipe: AASHTO M 294, Type S, produced from PE certified by the resin producer as meeting the requirements of ASTM D 3350, minimum cell class 315412C or 324420C. Pipe walls shall have the following properties:(#` ` ` @ @  !&+049``>Minimum Moment(#` ` ` Nominal !&+Minimum49``>of Inertia of(#` ` ` Size !&+Wall Area (sq)``>Wall Section(#` ` `  mm@ @  !(inches)+mm/m4(inches)``>mm@@C  H(to the 4th inch)(#  ` `  300 !12&+320041.50``> 390  H0.024(#  ` `  375 !15&+400041.91``> 870  H0.053(#  ` `  450 !18&+490042.34``>1020  H0.062(#  ` `  600 !24&+660043.14``>1900  H0.116(#  ` `  750 !30&+830043.92``>2670  H0.163(#  ` `  900 !36&+950044.50``>3640  H0.222(#  3.` ` Profile Wall PE Pipe: ASTM F 894, RSC 160, produced from PE certified by the resin producer as meeting the requirements of ASTM D 3350, minimum cell class 334433C. Pipe walls shall have the following properties:(#` ` ` @ @  !&+04Minimum Moment(# ` ` @ @  !&+04Of Inertia of(# ` ` @ @  !&+04Wall Section(# ` ` @ @  !&+04mm9``>(to the 4th inch)(#`}&0*s's'ԌNominal@ @  !Minimum+04Cell``>@@C  HCell(#  Size Wall Area (sq) 4Class``>@@C  HClass(#  mm` ` (inch) !mm/m+(inch)4334433C``>@@C  H335434C(#   450@ @ 18 ! 6300+2.964 850``>0.052  H 620Q0.038(#  525@ @ 21 ! 8800+4.1541150``>0.070  H 840Q0.051(#  600@ @ 24 ! 9900+4.6641330``>0.081  H 970Q0.059(#  675@ @ 27 !12500+5.9142050``>0.125  H1490Q0.091(#  750@ @ 30 !12500+5.9142050``>0.125  H1490Q0.091(#  825@ @ 33 !14800+6.9942640``>0.161  H2160Q0.132(#  900@ @ 36 !17100+8.0843310``>0.202  H2700Q0.165(# 1050@ @ 42 !16500+7.8144540``>0.277  H3720Q0.227(# 1200@ @ 48 !18700+8.8245540``>0.338  H4540Q0.277(# J.Subsurface Drainage Piping Materials: (# 1.` ` Clay Drain Tile: ASTM C 4, [standard] [extra-quality] [heavy-duty].(#` 2.` ` Concrete Drain Tile: [ASTM C 412[M] [standard-quality] [extra-quality] [heavy-duty extra quality] [special quality].(#` 3.` ` Perforated Clay Pipe: ASTM C 700, [standard strength] [extra strength].(#` 4.` ` Perforated Concrete Piping: ASTM C 444[M], and applicable requirements of ASTM C 14, Class [_____].(#` 5.` ` Perforated Corrugated Steel Piping: ASTM A 760[M], Type III, zinc-coated.(#` 6.` ` Perforated Polyvinyl Chloride (PVC) Piping: ASTM D 2729.(#` 7.` ` Perforated Polyethylene Pipe With Filter: [AASHTO M 252.] Piping shall be heavy duty perforated corrugated polyethylene tubing having uniformly spaced slots with a maximum width of 3.17 mm (1/8inch). Nylon filter screen shall provide covering for openings in the drain pipe. Lap seams and weld for complete coverage.(#` ` ` a.@ @ Fittings: ASTM F 405 and ASTM D 543 couplings, tees, and end caps for underdrains shall be heavyduty polyethylene.(#@ 2.2MISCELLANEOUS STRUCTURES AND MATERIALS(# A.Gravel: Underdrain trench backfill shall be pit run and approved by the Contracting Officer.(# B.Cover for Drain Outlet: Shall be 14gauge galvanized wire mesh (1/4-inch) square opening.(# C.Hose Clamps: Shall be stainlesssteelgear type, (9/16inch) width.(# D.Drainage Structures: Precast structures may be provided in lieu of cast-in-place concrete except for headwalls and gutters. Pipe-to-wall connections shall be mortared to produce smooth transitions and watertight joints or provided with ASTM C 923 resilient connectors. Bases shall have smooth inverts accurately shaped to a semicircular bottom conforming to the inside contour of the adjacent sewer sections. Changes in direction of the sewer and entering branches into the manhole shall have a circular curve in the manhole invert of as large a radius as the size of the manhole will permit.(# 1.` ` Precast Concrete Structures: ASTM C 478[M]. Provide [an air content of 6 percent, plus or minus 2 percent and] a minimum wall thickness of 125 mm (5 inches). ASTM A 615[M] reinforcing bars. ASTM A 497 welded wire fabric. ASTM C 443[M] or AASHTO M198, Type%0*s's' B gaskets for joint connections. Provide a 100 mm (4 inch) layer of clean gravel bedding with a maximum size of 50 mm (2inches).(#` ***************************************************** DO NOT SPECIFY HERE IF COVERED IN OTHER SECTIONS. ***************************************************** E.Masonry Materials: [Section [_____].](# 1.` ` Brick: ASTM C 32, Grade MS, or ASTM C 62, Grade SW, except that the absorption test will be waived.(#` 2.` ` Concrete Masonry Units: ASTM C 139.(#` 3.` ` Mortar: ASTM C 270, Type M.(#` 4.` ` Water: Water for masonry mortar shall be fresh, clean, potable.(#` 5.` ` Grout: ASTM C 476.(#` F.Erosion Control Riprap: Provide nonerodible rock not exceeding 375mm (15 inches) in its greatest dimension and choked with sufficient small rocks to provide a dense mass with a minimum thickness [of 200 mm (8inches)] [as indicated].(# G.Manholes, Frames, Grates and Covers: See Section 02533.(# PART 3: EXECUTION 3.1EXCAVATION(# A.Trenching: Excavate trenches as indicated [on the drawings.] [as staked in the field.] The width of trenches at any point below the top of the pipe shall be not greater than the outside diameter of the pipe plus [_____] mm (inches) to permit satisfactory jointing and thorough tamping of the bedding material under and around the pipe. Sheeting and bracing where required shall be placed within the trench width as specified. Care shall be taken not to overexcavate. Where trench widths are exceeded, redesign with a resultant increase in cost of stronger pipe or special installation procedures shall be necessary. Cost of this redesign and increased cost of pipe or installation shall be borne by the Contractor without additional cost to the Government.(# ***************************************************** UNLESS OTHERWISE SPECIFIED, MATERIAL USED TO REPLACE UNSTABLE MATERIAL OR ROCK EXCAVATION SHOULD BE COMPACTED TO A MINIMUM DENSITY OF 90 PERCENT FOR COHESIVE SOILS AND 95 PERCENT FOR NONCOHESIVE SOILS, AS DETERMINED BY ASTM D 1557. ***************************************************** B.Removal of Rock: Rock in either ledge or boulder formation shall be replaced with suitable materials to provide a compacted earth cushion having a thickness between unremoved rock and the pipe of at least 200mm (8 inches) or 85 mm (1/2 inch) for each meter (foot) of fill over the top of the pipe, whichever is greater, but not more than three-fourths the nominal diameter of the pipe. Where bell-and-spigot pipe is used, the cushion shall be maintained under the bell as well as under the straight portion of the pipe. Rock excavation shall be as specified and defined in Section 02321 Trenching.(# C.Removal of Unstable Material: Where wet or otherwise unstable soil incapable of properly supporting the pipe, as determined by the Contracting Officer, is unexpectedly encountered in the bottom of a trench, such material shall be removed to the depth required and replaced to the proper grade with select granular material. When}&0*s's' removal of unstable material is due to the fault or neglect of the Contractor in his performance of shoring and sheeting, water removal, or other specified requirements, such removal and replacement shall be performed at no additional cost to the government.(# 3.2BEDDING(# A.Concrete Pipe: When no bedding class is specified or detailed on the drawings, concrete pipe shall be bedded carefully in a soil foundation accurately shaped and rounded to conform to the lowest one-fourth of the outside portion of circular pipe or to the lower curved portion of pipe arch for the entire length of the pipe or pipe arch. When necessary, the bedding shall be tamped. Bell holes and depressions for joints shall be only of such length, depth, and width as required for properly making the particular type of joint.(# B.Clay Pipe: Bedding for clay pipe shall be as specified by ASTM C 12.(# C.Corrugated Metal Pipe: Bedding for corrugated metal pipe and pipe arch shall be in accordance with ASTM A 798. It is not required to shape the bedding to the pipe geometry. However, for pipe arches, it is recommended to either shape the bedding to the relatively flat bottom arc or fine grade the foundation to a shallow v-shape. Bedding for corrugated structural plate pipe shall meet requirements of ASTM A 807.(# D.Ductile Iron Pipe: Bedding for ductile iron pipe shall be as shown on the drawings.(# E.Plastic Pipe: Bedding for PVC and PE pipe shall meet the requirements of ASTM D 2321. Bedding, haunching, and initial backfill shall be either Class IB or II material.(# 3.3PLACING PIPE(# A.Requirements for All Pipes: Each pipe shall be carefully examined before being laid, and defective or damaged pipe shall not be used. Plastic pipe shall be protected from exposure to the direct sunlight prior to laying as needed to maintain adequate pipe stiffness and meet installation deflection requirements. Pipelines shall be laid to the grades and alignment indicated. Proper facilities shall be provided for lowering sections of pipe into trenches. Lifting lugs in vertically elongated metal pipe shall be placed in the same vertical plane as the major axis of the pipe. Under no circumstances shall pipe be laid in water, and no pipe shall be laid when trench conditions or weather are unsuitable for such work. Diversion of drainage or dewatering of trenches during construction shall be provided as necessary. Deflection of installed plastic pipe shall not exceed 4.5 percent of the nominal inside diameter. After backfilling has been completed, the Government may perform a deflection test on the entire length of installed plastic pipeline using a mandrel or other suitable device. Any plastic pipe showing deflections in excess of 4.5 percent shall be removed and replaced at the Contractor's expense. All pipe in place shall be inspected before backfilling, and those pipes damaged during placement shall be removed and replaced.(# B.Concrete Pipe: Install pipe and fittings in accordance with the provisions for rubber gasket jointing and jointing procedures of ACPA 01-103 or of ACPA 01-102, Chapter 9. Make joints with the gaskets previously specified for joints with this piping. Clean and dry}& 0*s's' surfaces receiving lubricants, cements, or adhesives. Affix gaskets to pipe not more than 24 hours prior to the installation of the pipe. Protect gaskets from sun, blowing dust, and other deleterious agents at all times. Before installation of the pipe, inspect gaskets and remove and replace loose or improperly affixed gaskets. Align each pipe section with the previously installed pipe section, and pull the joint together. If, while pulling the joint, the gasket becomes loose and can be seen through the exterior joint recess when the pipe is pulled up to within 25 mm (1 inch) of closure, remove the pipe and remake the joint.(# 1.` ` Elliptical and Elliptical Reinforced Concrete Pipe: Placement shall be so that the manufacturer's reference lines designating the top of the pipe will be within 5 degrees of a vertical plane through the longitudinal axis of the pipe. In all backfilling operations, care shall be taken to prevent damage to or misalignment of the pipe.(#` C.Clay Pipe: Install pipe and fittings in accordance with the requirements of ASTM C 12 for pipe laying. (# D.Ductile Iron Pipe: Laying shall proceed upgrade with spigot ends of bell-and-spigot pipe and tongue ends of tongue-and-groove pipe pointing in the direction of the flow.(# E.ABS or PVC Composite Plastic Piping: Install pipe and fittings in accordance with the recommendations of the plastic pipe manufacturer. Make joints with the primer and solvent cement specified for this joint; assemble in accordance with the recommendations of the pipe manufacturer. Handle solvent cement in accordance with ASTM F 402.(# F.PVC Plastic Piping: Install pipe and fittings in accordance with the requirements of ASTM D 2321 for laying and joining pipe and fittings. (# G.Corrugated Plastic Piping: Install pipe and fittings in accordance with the recommendations of the pipe manufacturer. Laying shall be with the separate sections joined firmly on a bed shaped to line and grade.(# H.Corrugated Metal Pipe and Pipe Arch: Install [corrugated aluminum] [and] [corrugated steel] pipe, and fittings in accordance with the general requirements for installation of pipelines and with the recommendations of [ASTM B 788] [and] [ASTM A 798] [,respectively], except as otherwise specified in the other subparagraphs hereunder.(# 1.` ` Pipe laying: Handle pipe carefully so as not to damage [coating] [and] [paving]. If damage occurs, give damaged areas of pipe and couplings an application of [coating] [and] [paving] equal to that specified for the pipe [; remove pipe on which [coating] [and] [paving] has been damaged to such extent that satisfactory repairs cannot be made and replace with new, as determined by the Contracting Officer]. [Install paved invert corrugated metal pipe with the paved area centered at the bottom.](#` I.Multiple Culverts: Where multiple lines of pipe are installed, adjacent sides of pipe shall be at least half the nominal pipe diameter or 1 meter (3 feet) apart, whichever is less.(# J.Subsurface Drainage Piping: The laying of pipe and tile shall proceed upgrade from the lower end of the line, and shall have a uniform pitch% 0*s's' to the outlets. Lay drain tile with 3 to 6 mm (1/8 to 1/4 inch) open joints. (# 3.4 JOINTS ***************************************************** WHERE WATERTIGHTNESS IS ESSENTIAL, PARAGRAPHS CEMENT-MORTAR BELL-AND-SPIGOT JOINT THROUGH PLASTIC SEALING COMPOUND JOINTS FOR TONGUE-AND-GROOVED PIPE AND PLASTIC COUPLINGS AND FIELD JOINTS SHOULD BE DELETED. ***************************************************** A.Connections to Existing Lines: Notify Contracting Officer in writing at least 10 days prior to date that connections are to be made. Obtain approval of the Contracting Officer before interrupting service. Conduct work so that there is minimum interruption of service on existing line.(# B.Concrete Pipe: (# 1.` ` Cement-Mortar Bell-and-Spigot Joint: The first pipe shall be bedded to the established gradeline, with the bell end placed  upstream. The interior surface of the bell shall be carefully cleaned with a wet brush and the lower portion of the bell filled with mortar to such depth as to bring inner surfaces of abutting pipes flush and even. The spigot end of each subsequent pipe shall be cleaned with a wet brush and uniformly matched into a bell so that sections are closely fitted. After each section is laid, the remainder of the joint shall be filled with mortar, and a bead shall be formed around the outside of the joint with sufficient additional mortar. If mortar is not sufficiently stiff to prevent appreciable slump before setting, the outside of the joint shall be wrapped or bandaged with cheesecloth to hold mortar in place.(#` 2.` ` Cement-Mortar Oakum Joint for Bell-and-Spigot Pipe: A closely twisted gasket shall be made of jute or oakum of the diameter required to support the spigot end of the pipe at the proper grade and to make the joint concentric. Joint packing shall be in one piece of sufficient length to pass around the pipe and lap at top. This gasket shall be thoroughly saturated with neat cement grout. The bell of the pipe shall be thoroughly cleaned with a wet brush, and the gasket shall be laid in the bell for the lower third of the circumference and covered with mortar. The spigot of the pipe shall be thoroughly cleaned with a wet brush, inserted in the bell, and carefully driven home. A small amount of mortar shall be inserted in the annular space for the upper two-thirds of the circumference. The gasket then shall be lapped at the top of the pipe and driven home in the annular space with a caulking tool. The remainder of the annular space then shall be filled completely with mortar and beveled at an angle of approximately 45 degrees with the outside of the bell. If mortar is not sufficiently stiff to prevent appreciable slump before setting, the outside of the joint thus made shall be wrapped with cheesecloth. Placing of this type of joint shall be kept at least five joints behind laying operations.(#` 3.` ` Cement-Mortar Diaper Joint for Bell-and-Spigot Pipe: The pipe shall be centered so that the annular space is uniform. The annular space shall be caulked with jute or oakum. Before caulking, the inside of the bell and the outside of the spigot shall be cleaned.(#` % 0*s's'Ԍ` ` a.@ @ Diaper Bands: Diaper bands shall consist of heavy cloth fabric to hold grout in place at joints and shall be cut in such lengths that they will extend one-eighth of the circumference of pipe above the spring line on one side of the pipe and up to the spring line on the other side of the pipe. Longitudinal edges of fabric bands shall be rolled and stitched around two pieces of wire. Width of fabric bands shall be such that after fabric has been securely stitched around both edges on wires, the wires will be uniformly spaced not less than 200 mm (8inches) apart. Wires shall be cut into lengths to pass around pipe with sufficient extra length for the ends to be twisted at top of pipe to hold the band securely in place; bands shall be accurately centered around lower portion of joint.(#@ ` ` b.@ @ Grout: Grout shall be poured between band and pipe from only the high side of band, until grout rises to the top of band at the spring line of pipe, or as nearly so as possible, on the opposite side of pipe, to ensure a thorough sealing of joint around the portion of pipe covered by the band. Silt, slush, water, or polluted mortar grout forced up on the lower side shall be carefully forced out by pouring and removed.(#@ ` ` c.@ @ Remainder of Joint: The remaining unfilled upper portion of the joint shall then be filled with mortar and a bead formed around the outside of this upper portion of the joint with a sufficient amount of additional mortar. The diaper shall be left in place. Placing of this type of joint shall be kept at least five joints behind actual laying of pipe. No backfilling around joints shall be done until joints have been fully inspected and approved.(#@ 4.` ` Cement-Mortar Tongue-and-Groove Joint: The first pipe shall be bedded carefully to the established gradeline with the groove upstream. A shallow excavation shall be made underneath the pipe at the joint and filled with mortar to provide a bed for the pipe. The grooved end of the first pipe shall be carefully cleaned with a wet brush, and a layer of soft mortar applied to the lower half of the groove. The tongue of the second pipe shall be cleaned carefully with a wet brush; while in horizontal position, a layer of soft mortar shall be applied to the upper half of the tongue. The tongue end of the second pipe then shall be inserted in the grooved end of the first pipe until mortar is squeezed out on interior and exterior surfaces. Sufficient mortar shall be used to fill the joint completely and to form a bead on the outside.(#` 5.` ` Cement-Mortar Diaper Joint for Tongue-and-Groove Pipe: The joint shall be of the type described for cement-mortar tongue-and-groove joint in this paragraph, except that the shallow excavation directly beneath the joint shall not be filled with mortar until after a gauze or cheesecloth band dipped in cement mortar has been wrapped around the outside of the joint. The cement-mortar bead at the joint shall be at least 15 mm, (1/2 inch,) thick and the width of the diaper band shall be at least 200 mm. (8 inches.) The diaper shall be left in place. Placing of this type of joint shall be kept at least five joints behind the actual laying of the pipe. No backfilling around the joints shall be done until the joints have been fully inspected and approved.(#` 6.` ` Plastic Sealing Compound Joints for Tongue-and-Grooved Pipe: Sealing compounds shall follow the recommendation of the particular manufacturer in regard to special installation requirements. Surfaces to receive lubricants, primers, or adhesives shall be dry and clean. Sealing compounds shall be affixed to the pipe not more than 3hours prior to installation of}& 0*s's' the pipe, and shall be protected from the sun, blowing dust, and other deleterious agents at all times. Sealing compounds shall be inspected before installation of the pipe, and any loose or improperly affixed sealing compound shall be removed and replaced. The pipe shall be aligned with the previously installed pipe, and the joint pulled together. If, while making the joint with mastic-type sealant, a slight protrusion of the material is not visible along the entire inner and outer circumference of the joint when the joint is pulled up, the pipe shall be removed and the joint remade. After the joint is made, all inner protrusions will be cut off flush with the inner surface of the pipe. If nonmastic-type sealant material is used, the "Squeeze-Out" requirement above shall be waived.(#` 7.` ` Flexible Watertight Joints: Gaskets and jointing materials shall be as recommended by the particular manufacturer in regard to use of lubricants, cements, adhesives, and other special installation requirements. Surfaces to receive lubricants, cements, or adhesives shall be clean and dry. Gaskets and jointing materials shall be affixed to the pipe not more than 24 hours prior to the installation of the pipe, and shall be protected from the sun, blowing dust, and other deleterious agents at all times. Gaskets and jointing materials shall be inspected before installing the pipe; any loose or improperly affixed gaskets and jointing materials shall be removed and replaced. The pipe shall be aligned with the previously installed pipe, and the joint pushed home. If, while the joint is being made the gasket becomes visibly dislocated the pipe shall be removed and the joint remade.(#` 8.` ` External Sealing Band Joint for Noncircular Pipe: Surfaces to receive sealing bands shall be dry and clean. Bands shall be installed in accordance with manufacturer's recommendations.(#` C.Clay Piping: Make joints with a compression joint material specified for joints with this piping and assemble in accordance with the recommendations of the manufacturer of the pipe.(# D.PVC Plastic Pipes: Joints shall be solvent cement or elastomeric gasket type in accordance with the specification for the pipe and as recommended by the pipe manufacturer. Assemble in accordance with the requirements of ASTMD 2321 for assembly of joints. Make joints to other pipe materials in accordance with the recommendations of the plastic pipe manufacturer.(# E.PE Piping: (# 1.` ` Smooth Wall PE Plastic Pipe: Pipe shall be joined using butt fusion method as recommended by the pipe manufacturer.(#` 2.` ` Corrugated PE Plastic Pipe: Water tight joints shall be made using a PVC or PE coupling and rubber gaskets as recommended by the pipe manufacturer. Rubber gaskets shall conform to ASTM F477. Soil tight joints shall conform to the requirements in AASHTO-01, Division II, Section 26.4.2.4. (e) for soil tightness and shall be as recommended by the pipe manufacturer.(#` 3.` ` Profile Wall PE Plastic Pipe: Joints shall be gasketed or thermal weld type with integral bell in accordance with ASTM F 894.(#` F.Corrugated Metal Pipe:(# 1.` ` Field Joints: Transverse field joints shall be of such design that the successive connection of pipe sections will form a continuous line free of appreciable irregularities in the flow line. In addition, the joints shall meet the general performance requirements described in ASTM A 798. The space between the pipe}& 0*s's' and connecting bands shall be kept free from dirt and grit so that corrugations fit snugly. The connecting band, while being tightened, shall be tapped with a soft-head mallet of wood, rubber or plastic, to take up slack and ensure a tight joint. The annular space between abutting sections of part paved, and fully paved pipe and pipe arch, in sizes 750 mm (30 inches) (30 inches) or larger, shall be filled with a bituminous material after jointing. Field joints for each type of corrugated metal pipe shall maintain pipe alignment during construction and prevent infiltration of fill material during the life of the installations. The type, size, and sheet thickness of the band and the size of angles or lugs and bolts shall be as indicated or where not indicated, shall be as specified in the applicable standards or specifications for the pipe.(#` 2.` ` Flexible Watertight, Gasketed Joints: Installation shall be as recommended by the gasket manufacturer for use of lubricants and cements and other special installation requirements. The gasket shall be placed over one end of a section of pipe for half the width of the gasket. The other half shall be doubled over the end of the same pipe. When the adjoining section of pipe is in place, the doubled-over half of the gasket shall then be rolled over the adjoining section. Any unevenness in overlap shall be corrected so that the gasket covers the end of pipe sections equally. Connecting bands shall then be centered over adjoining sections of pipe, and rods or bolts placed in position and nuts tightened. Band Tightening: The band shall be tightened evenly, even tension being kept on the rods or bolts, and the gasket shall be closely observed to see that it is seating properly in the corrugations. Watertight joints shall remain uncovered for a period of time designated, and before being covered, tightness of the nuts shall be measured with a torque wrench. If the nut has tended to loosen its grip on the bolts or rods, the nut shall be retightened with a torque wrench and remain uncovered until a tight, permanent joint is assured.(#` G.Subsurface Piping: Joints between the tile shall be covered with one thickness of the jointing material specified; material shall overlap the joint not less than 100 mm (4 inches) on each side and shall cover the tile for not less than the upper half or more than the upper two-thirds of the circumference of the tile. [[Lay perforated clay pipe] [and] [perforated concrete pipe] without filling the pipe joints, but with positive provision for centering each section of pipe in the bell [or groove] of the placed section.] [[Perforated corrugated aluminum pipe] [and] [perforated corrugated steel pipe] shall have joints made with standard coupling bands in a manner approved by the Contracting Officer.] Provide vertical pipe at the high points in each drain run, for testing purposes. Connect the vertical pipe sections into the drains by means of tees, and extend to the height indicated. Fit the upper hub ends with screwed plugs. Make joints in cast-iron sections with fiber gaskets.(# 3.5 DRAINAGE STRUCTURES A.Manholes, Inlets, and Steel Ladder: See Section 02533 Sanitary Cleanouts, Manholes, Frames, and Covers.(# B.Walls and Headwalls: Construction shall be as indicated.(# C.Metal Work: Perform metal work so that workmanship and finish will be equal to the best practice in modern structural shops and foundries. }&0*s's' Form iron [and steel] to shape and size with sharp lines and angles. Do shearing and punching so that clean true lines and surfaces are produced. Make castings sound and free from warp, cold shuts, and blow holes that may impair their strength or appearance. Give exposed surfaces a smooth finish with sharp well-defined lines and arises. Provide rabbets, lugs, and brackets wherever necessary for fitting and support. (# 1.` ` [Apply zinc coating to steel gratings after fabrication in accordance with ASTM A 653[M].] [Clean surfaces of steel frames and covers to bare metal. For surfaces contaminated with rust, dirt, oil, grease, or other contaminants, wash with solvents until thoroughly clean. Immediately after cleaning, coat surfaces with a coat of pretreatment coating, applied to a dry film thickness of 0.008 to 0.013 mm (0.3 to 0.5 mil); or apply a crystalline phosphate coating. As soon as practicable after the pretreatment coating has dried, prime treated surfaces with a coat of [_____] applied to a minimum dry film thickness of [_____] mm (mils). If primed surfaces are damaged before removal from the shop, retouch with primer.](#` 2.` ` Field Painting: [After installation, clean cast-iron frames, covers, gratings, and steps not buried in masonry or concrete to bare metal of mortar, rust, grease, dirt, and other deleterious materials and apply a coat of bituminous paint.] [After installation, clean steel covers and steel or concrete frames not buried in masonry or concrete to bare metal of mortar, dirt, grease, and other deleterious materials. Apply a coat of primer, [_____], to a minimum dry film thickness of [____] mm (mil); and apply a top coat, [_____] to a minimum dry film thickness of [____] mm (mils), color optional.] Do not paint surfaces subject to abrasion.(#` 3.6BACKFILLING(# A.Backfilling Pipe in Trenches: After the pipe has been properly bedded, selected material from excavation or borrow, at a moisture content that will facilitate compaction, shall be placed along both sides of pipe in layers not exceeding 150 mm (6 inches) in compacted depth. The backfill shall be brought up evenly on both sides of pipe for the full length of pipe. Care shall be taken to ensure thorough compaction of the fill under the haunches of the pipe. Each layer shall be thoroughly compacted with mechanical tampers or rammers. This method of filling and compacting shall continue until the fill has reached an elevation of at least 300 mm (12 inches) above the top of the pipe. The remainder of the trench shall be backfilled and compacted by spreading and rolling or compacted by mechanical rammers or tampers in layers not exceeding [____] millimeters (inches). Tests for density will be made as necessary to ensure conformance to the compaction requirements specified elsewhere in this paragraph. Where it is necessary in the opinion of the Contracting Officer, any sheeting or portions of bracing used shall be left in place and the contract will be adjusted accordingly. Untreated sheeting shall not be left in place beneath structures or pavements.(# B.Backfilling Pipe in Fill Sections: For pipe placed in fill sections, backfill material and the placement and compaction procedures shall be as specified elsewhere in this paragraph. The fill material shall be uniformly spread in layers longitudinally on both sides of the pipe, not exceeding 150 mm (6 inches) in compacted depth, and shall be compacted by rolling parallel with pipe or by mechanical tamping or ramming. Prior to commencing normal filling operations, the crown}&0*s's' width of the fill at a height of 300 mm (12 inches) above the top of the pipe shall extend a distance of not less than twice the outside pipe diameter on each side of the pipe or 4 m, (12 feet,) whichever is less. After the backfill has reached at least 300mm (12 inches) above the top of the pipe, the remainder of the fill shall be placed and thoroughly compacted in layers not exceeding [____] mm (inches).(# C.Movement of Construction Machinery: In compacting by rolling or operating heavy equipment parallel with the pipe, displacement of or injury to the pipe shall be avoided. Movement of construction machinery over a culvert or storm drain at any stage of construction shall be at the Contractor's risk. Any damaged pipe shall be repaired or replaced.(# D.Compaction: Cohesionless materials include gravels, gravel-sand mixtures, sands, and gravelly sands. Cohesive materials include clayey and silty gravels, gravel-silt mixtures, clayey and silty sands, sand-clay mixtures, clays, silts, and very fine sands. (# 1.` ` Minimum Density: Backfill over and around the pipe and backfill around and adjacent to drainage structures shall be compacted at the approved moisture content to the following applicable minimum density (densities) which will be determined as specified in this paragraph.(#` ` ` a.@ @ Under [airfield and heliport pavements,] paved roads, streets, parking areas, and similar-use pavements including adjacent shoulder areas, the density shall be not less than 90percent of maximum density for cohesive material and 95percent of maximum density for cohesionless material, up to the elevation where requirements for pavement subgrade materials and compaction shall control.(#@ ` ` b.@ @ Under unpaved or turfed traffic areas, density shall not be less than 90 percent of maximum density for cohesive material and 95 percent of maximum density for cohesionless material.(#@ ` ` c.@ @ Under nontraffic areas, density shall be not less than that of the surrounding material.(#@ E.Determination of Density: Testing shall be the responsibility of the Contractor and performed at no additional cost to the Government. Testing shall be performed by an approved commercial testing laboratory or by the Contractor subject to approval. Tests shall be performed in sufficient number to ensure that specified density is being obtained. Laboratory tests for moisture-density relations shall be made in accordance with ASTM D 1557 except that mechanical tampers may be used provided the results are correlated with those obtained with the specified hand tamper. Field density tests shall be determined in accordance with ASTM D 2167 or ASTM D 2922. When ASTM D 2922 is used, the calibration curves shall be checked and adjusted, if necessary, using the sand cone method as described in paragraph Calibration of the referenced publications. ASTM D 2922 results in a wet unit weight of soil and when using this method ASTM D 3017 shall be used to determine the moisture content of the soil. The calibration curves furnished with the moisture gauges shall be checked along with density calibration checks as described in ASTM D 3017 or ASTM D 2922. Test results shall be furnished the Contracting Officer. The calibration checks of both the density and moisture gauges shall be made at the beginning of a job on each different type of material encountered and at intervals as directed.(# /%0*s's'Ԍ-***************************************************** WHEN THE QUANTITY OF PIPE REQUIRED FOR A PROJECT IS SO SMALL THAT THE PROVISIONS FOR TESTING AND CERTIFICATION OF WATERTIGHTNESS OF JOINTS APPEARS TO BE ECONOMICALLY UNFEASIBLE, SUCH PROVISIONS SHOULD BE DELETED. SELECT APPROPRIATE LEAKAGE RATE. DELETE PARAGRAPH WHEN WATERTIGHT JOINTS ARE NOT REQUIRED. ***************************************************** 3.7FIELD TESTING(# A.Field Tests and Inspections: Contractor shall provide labor, -equipment, and incidentals required for testing [, except that water and electric power needed for field tests will be furnished as set forth in Section [_____, "_____."]] or engage the services of a firm to provide the necessary testing. The Contracting Officer will conduct field inspections and witness field tests specified in this section. The Contractor shall be able to produce evidence, when required, that each item of work has been constructed properly in accordance with the drawings and specifications.(# B.Leakage Tests: Test lines for leakage by either infiltration tests or exfiltration tests. Prior to testing for leakage, backfill trench up to at least the lower half of pipe. When necessary to prevent pipeline movement during testing, place additional backfill around pipe sufficient to prevent movement, but leaving joints uncovered to permit inspection. When leakage exceeds the amount specified below, make satisfactory correction and retest pipeline section in the same manner. Correct visible leaks regardless of leakage test results. Amount of leakage, as measured by either infiltration or exfiltration test shall not exceed:(# 1.` ` [23.5 liters per mm diameter per kilometer of pipeline per day (250 gallons per inch diameter per mile of pipeline per day)](#` 2.` ` [0.03 liters per mm diameter per 30 m of pipeline per hour (0.2 gallons per inch diameter per 100feet of pipeline per hour)].(#` 3.` ` [47]liters per millimeter of diameter per day per kilometer ([500] gallons per inch of diameter per day per mile) of pipeline.(#` 4.` ` [Infiltration] [and] [exfiltration] tests for installed concrete pipe shall be performed in accordance with (ASTM C 969[M].(#` C.Hydrostatic Test on Watertight Joints: Cement or corrugated-metal pipes joined straight shall withstand 69 kilopascal (10 psi) for 24 hours without failure. When test is completed test sections shall be angled and retested at 69 kilopascal (10 psi) for an additional 24hours.(# 1.` ` Test results for concrete pipe shall conform to [ASTM C 443[M]] [AASHTO M 198].(#` 2.` ` Test results for clay pipe shall conform to ASTM C 425.(#` D.Low Pressure Air Test of Conduit: Acceptance tests for installed ferrous and plastic piping shall be in accordance with ASTM F 1417.(# E.Deflection Testing: Perform a deflection test on entire length of installed plastic pipeline on completion of work adjacent to and over the pipeline, including leakage tests, backfilling, placement of fill, grading, paving, concreting, and any other superimposed loads. Deflection of pipe in the installed pipeline under external loads shall not exceed 4.5 percent of the average inside diameter of pipe. Determine whether the allowable deflection has been exceeded by use of a pull-through device or a deflection measuring device.(# ` ` a.@ @ Pull-through device: Pass the pull-through device through each run of pipe, either by pulling it through or flushing it}&0*s's' through with water. If the device fails to pass freely through a pipe run, replace pipe which has the excessive deflection and completely retest in same manner and under same conditions as specified.(#@ ` ` b.@ @ Deflection measuring device procedure: Measure deflections through each run of installed pipe. If deflection readings in excess of 4.5 percent of average inside diameter of pipe are obtained, retest pipe by a run from the opposite direction. If retest continues to show a deflection in excess of 4.5 percent of average inside diameter of pipe, remove pipe which has excessive deflection, replace with new pipe, and completely retest in same manner and under same conditions.(#@ ` ` c.@ @ Any pipe showing deflections in excess of 5 percent at the end of one year following installation and acceptance shall be replaced at no cost to the Government.(#@ F.Field Tests for Concrete: See Field testing requirements covered in Section 03300 Cast-In-Place Concrete.(# PART 4: MEASUREMENT AND PAYMENT 4.1METHOD OF MEASUREMENT(# ***************************************************** WHEN A "LUMP SUM" CONTRACT IS USED, DELETE THE TITLE PART 4: MEASUREMENT AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION. MEASUREMENT AND PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 GENERAL INFORMATION AND REQUIREMENTS OR SECTION 01010 SUMMARY OF WORK. WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE PHRASES; USE THE "NO MEASUREMENT" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION ARE INCLUDED IN THE BID SCHEDULE. ***************************************************** A.Units: [The work described in this section will] [not be measured for payment.] [be measured and paid for on a lump sum basis.](# 1.` ` [Excavation and backfill of underdrain trenches will be considered as a portion of structure installation and will not be measured for separate payment.(#` 2.` ` The length of pipe installed will be measured along the centerlines of the pipe from end to end of pipe without deductions for diameter of manholes. Pipe will be measured and paid for by the number of linear meters (feet) of culverts or storm drains placed in the accepted work. (#` 3.` ` Underdrain pipe will be paid for by lump sum provided in the Bid Schedule.](#` 4.` ` Walls and headwalls will be measured by the number of cubic meters (yards) of reinforced concrete, plain concrete, or masonry used in the construction of the walls and headwalls. Wall and headwalls will be paid for at the contract unit price for the number of walls and headwalls constructed in the completed work.(#` 5.` ` Flared end sections will be measured by the unit. Flared end sections will be paid for at the contract unit price for the various sizes in the accepted work.(#` p 4.2BASIS OF PAYMENT(# ***************************************************** WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE PHRASES; USE THE "NO DIRECT PAYMENT" PHRASE WHEN NONE OF THE PAY ITEMS IN THIS SECTION ARE INCLUDED IN THE BID SCHEDULE. WHEN NOT A "LUMP SUM" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS SECTION, SELECT APPLICABLE PAY ITEMS. DO NOT CHANGE PAY ITEM NUMBER. WHEN MORE THAN ONE DIAMETER OR GAUGE IS SPECIFIED FOR ANY PAY ITEM, LETTER SUFFIXES WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER. WHEN GOVERNMENTFURNISHED PROPERTY IS SPECIFIED FOR PAY ITEMS, THE LETTER SUFFIX GF WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER. ***************************************************** A.Payment: [No direct payment for the work described under this section p will be made. Consideration for this item shall be included in the bid price for other items of the Contract.] [Prices and payment will be full compensation for the work described in this section. Payment will be made under:](# Pay Item@ @  !&+049``>@@C  HLQPay Unit(#  02293(01) Underdrains. . . . . . . . . . . . . . . . . . .QLump Sum(# 02293(10) Culvert/Storm Drain Pipe [____] Dia(#p(#JLinear mm (foot) 02293(20) Reinforced Concrete(#p (#HCubic Meter (Foot) 02293(30) Nonreinforced Concrete(#p (#HCubic Meter (Foot) 02293(40) Masonry(#p(#ECubic Diameter (Foot) 02293(50) Flared End Section [___] Diameter(#p!(#VEach 02293(60) Riprap(#p (#RLump Sum 02293(50) Flared End Section [___] Diameter(#p!(#VEach 0,END OF SECTION0*s's' 5 ,WORK DATA SHEET V2FOR &SECTION 02293 UNDERDRAINS Pipe Length: _______________________________________________________ Pipe Size: _______________________________________________________ Pipe Appurtenances: _______________________________________________ (couplings, tees, and end caps) ____________________________________ Geotextile: ________________________________________________________ When several projects requiring underdrains are included, a tabular format may be more appropriate. (06/94)