Section 602 Section 602 the minimum clear distance specified between bars and to the surface of the concrete. Welding of reinforcing steel will be permitted only if detailed on the plans or if authorized by the Engineer in writing. If welded, it shall conform to AWS Recommended Practices for Welding Reinforcing Steel, Metal Inserts, and Connections in Reinforced Concrete Construction.
602.03.4 2--Lapping of Mesh and Bar Mats . Sheets of mesh or bar mat reinforcement
shall overlap each other sufficiently to maintain a uniform strength and shall be securely fastened at the ends and edges. The edge lap shall be at least one mesh in width.
602.04 Me thod of Measurement . Reinforcing steel will be measured in pounds based
on the computed weight of the reinforcement shown on the plans or authorized. In cases where a structure is measured and paid for by the unit, complete in place, no measurement of reinforcing steel will be made. The weight of plain or deformed bars and bar mats will be computed from the weights shown in the table of areas and weights in AASHTO M31. The weight for payment of steel fabric reinforcement will be computed from the theoretical weight of plain wire. If the weight per unit of area of the fabric is shown on the plans, that weight will be used for measurement. The weight for payment of structural steel re inforcement will be the theoretical weight of the material used. No allowance will be made for clips, wire, sepa rators, wire chairs, and other material used in fastening the reinforcing in place. If bars are substituted upon the Contractor's request and as a result more steel is used than specified, only the quantity specified will be measured. When splice laps, other than those shown on the plans, are made for the convenience of the Contractor, the extra steel will not be included in the measurement.
602.05 Basis of Payment . Reinforcing steel will be paid for at the contract unit price per
pound which shall be full compensation for completing the work. Payment will be made under: 602-A: Reinforcing Steel - per pound SECTION 603 - CULVERTS AND STORM DRAINS
603.01 Description . This work consists of the construction or reconstruction of pipe
culverts, precast box culverts, cattlepasses, storm drains, sewers, downspouts, special sections and headwalls, hereinafter referred to as "conduit," in accordance with these specifications and in reasonably close conformity with the lin es and grades shown on the plans or established. It shall also consist of furnishing all materials, except those specified to be furnished by the State, and joining the work to other conduit, catch basins, manholes, inlets, etc., as may be required to complete the work as designated. This work shall also consist of constructin g conduits for the encas ement of underground utilities or for other use by the method of jacking or boring in accordance with these specifications and in reasonably close conform ity with the lines a nd grades specified on the plans or established. When alternate pipe is shown in the contract, the Contractor may select an alternate pipe from the alternate pipe group (type) shown in the plans or contract documents. The type of pipe used for alternate pipe shall meet the material requirements of Subsection 603.02 for the type of pipe selected.
603.02 Materials . Conduit shall conform to the design and dimensions shown on the
plans, and materials shall meet the requireme nts specified in the following sections or subsections: Bituminous coated corrugated alumi num pipe and pipe arches ................................. 709.11 Bituminous coated corrugated meta l pipe and pipe arches ........................................ 709.03 Bituminous coated paved invert corrugated aluminum pipe and pipe arches .............................................................................................................. 709 .12 Bituminous coated paved invert corrugated metal pipe and pipe arches ................... 709.04 Bituminous plastic sealer for joints ............................................................................ 707.05 Cast iron pipe ............................................................................................................. 70 9.01 Concrete arch pipe end sections ................................................................................. 708.04 Concrete for h eadwalls ................................................................................................... 601 Concrete pipe ca ttlepasses ......................................................................................... 708.03 Corrugated aluminum pipe and pipe arches ............................................................... 709.09 Corrugated metal pipe an d pipe arches ...................................................................... 709.02 Corrugated poly vinyl chlo ride (PVC) pipe ............................................................... 708.17 Corrugated polyethy lene pipe, ................................................................................... 708.17 Elbows and branch connections for concrete pipe ..................................................... 708.23 Flexible plastic gasket s for joints ............................................................................... 707.06 Joint mortar ................................................................................................................ 7 14.11 Joints for sanitary sewers ........................................................................................ 603.03.4 Metal end sections, elbows, an d branch connec tions ................................................. 709.18 Non-reinforced concre te pipe.................................................................................. 708.02.4 Polymer coated corrugated metal pipe and pipe arches ............................................. 709.05 Precast box culv erts ................................................................................................... 708.22 Reinforced concrete arch pipe.................................................................................... 708.14 Reinforced concrete elliptical pipe ............................................................................ 708.15 Reinforced concrete end sections ............................................................................... 708.04 Reinforced concrete pipe ........................................................................................ 708.02.5 Reinforcin g steel ............................................................................................................. 602 Rubber type ga skets ................................................................................................... 707.04 Steel pipe ................................................................................................................... 709.19 When material requirements provide for modifica tions of design, acceptable modified designs will be shown on the plans.
603.03 Construction Requirements .
603.03.1 Excavation . Except for conduit to be installed by jacking and boring, trenches
shall be excavated in accordance with the requirements of Sec tion 206 to a width sufficient to allow for proper jointing of the conduit and thorough compaction of the bedding and backfill material under and around the conduit. Where feasible, trench walls shall be vertical. The completed trench bottom shall be firm for its full length and width. Where required, in the case of cross drains, the tr ench shall have the camber specified. Where conduit is to be placed in embankment, the excavation shall be made after the embankment has been completed to the specified height above the flow line of the conduit. In all cases the height above flow line shall be at least one foot. In the case of pipe to be jacked or bored, only the trench excavation and bedding as set out in Subsection 603.03.9 shall be performed.
603.03.2 Bedding. Except for conduit placed in a vertical position or jacked or bored, the
conduit bedding shall conform to one of the classes specified. When no bedding class is specified the requirements for Class C bedding or Class C modified bedding, as applicable shall apply. Non-rigid pipe used in cross drains and storm drains shall have a Class B bedding. Non-rigid pipe used in side drains shall have a Class C bedding. No separate measurement will be made for pipe bedding. Costs associated with pipe bedding shall be included in the cost of the pipe. CLASS A bedding consists of a continuous conc rete cradle conforming to plan details, and constructed on an approved foundation. CLASS B bedding consists of bedding the conduit to a depth of at least 30 percent of the vertical outside dimension of the conduit. The thickness of bedding material beneath the pipe shall be at least four inches. The bedding material shall be sand or selected sandy soil, all of which passes a 3/8 inch sieve and not more than 10 percent of which passes a No. 200 sieve. The layer of bedding material shall be shaped to fit the conduit for at least 15 percent of its total height. Recesses in the trench bottom shall be shaped to accommodate the bell when bell and spigot type conduit is used. CLASS C bedding consists of bedding the conduit to a depth of at least 10 percent of its total height. The bed shall be shaped to fit the conduit and shall have recesses shaped to receive the bell if bell and spigot type pipe is used. CLASS C MODIFIED bedding consists of bedding corrugated conduit to a depth of at least 10 percent of its total height. A bedding blanket of approved silty loam, sandy loam, concrete sand, or other approved sand or sandy soil shall be roughly shaped to fit the bottom of the pipe. Minimum thickness before placing pipe shall be as follows: 1 inch for 1/2 inch deep corrugations 2 inches for 1 inch deep corrugations 3 inches for 2 inches or 2 1/2 inches corrugations For structural plate pipe the length of beddi ng arc need not exceed th e width of the bottom plate. Bedding for precast concrete box culverts shall consist of at least two inches of Class 9, Group C, or better, granular material placed between graded forms set at least one foot outside each outside wall of the box culvert. The granular material shall be shaped to fit the bottom of the precast box culvert sections by screeding off the graded forms. After placement of the precast box culvert sections on the graded bedding, the forms may be removed and reused.
603.03.3 Laying Conduit . The conduit laying shall begin at the staked location of the
downstream end of the conduit line. The lowe r segment of the conduit shall be in contact with the shaped bedding throughout its full le ngth. Bell or groove ends of rigid conduits and outside circumferential laps of flexible conduits shall be placed facing upstream. Flexible conduits shall be placed with longitudi nal laps or seams at the sides. Transverse joints for all types of coated flexible conduits shall maintain pipe alignment during construction and prevent infiltration of backf ill material during the life of the structure. Paved or partially lined conduit shall be laid so that the longitudinal center line of the paved segment coincides with the flow line. Elliptical and elliptically reinforced conduits shall be placed with the major axis within five degrees of a horizontal plane through the longitudinal axis of the conduit. Construction requirements for end sections shall conform to the requirements for placing the pipe to which they are joined. At the Contractor's option, subject to the written approval of the Engineer, concrete headwalls conforming to the Department's Standard Drawings may be substituted for premanufactured end sections without change in compensation.
603.03.4 Joining Conduit .
603.03.4 1--Storm Drainage . Rigid conduits may be either bell and spigot or tongue and
groove design unless one type is specified. The method of joining conduit sections shall be such that the ends are fully entered, and the inner surfaces are reasonably flush and even. Unless otherwise specified, joints shall be sealed with rubber type gaskets, bituminous plastic sealer, or flex ible plastic gaskets. Joints for precast concrete box culverts shall be made with bituminous plastic sealer. Rubber type gaskets shall be installed so as to form a flexib le watertight seal. For joints to be sealed with bituminous plastic, the joining ends shall be wiped clean and dry. The plastic compound shall be applied cold to the entire surface of tongues and grooves, the entire surface of bells and spigots, and the entire area of metal pipes to be covered by connecting bands. Sections of concrete pipe shall be forced together, and sections of metal pipe banded together, with excess compound extruding both inside and outside the pipe. Excess compound shall be removed from interior surfaces, and the exterior shall be finished reasonably flush. After pipe has been joined with bituminous plastic compound, roofing felt or other approved suitable fabric shall be placed over the outside joints to avoid mixing of soil with the compound. For joints to be sealed with flexible plastic gasket material, the pipe shall be installed in a dry trench. Joints shall be made in such a manner that a slight internal extrusion of the plastic gasket will occur for the full circumference when the sections of pipe are forced together. Installation shall be in accor dance with these specifications and the manufacturer's instructions. Plastic gasket ma terial shall be applied only to surfaces which are dry. A primer of the type recommended by the manufacturer of the plastic gasket shall be applied to the tongue and groove and to the end surfaces, and the surface to be primed shall be clean and dry when the primer is app lied. During cold weather the joint surfaces and the gasket shall be lightly heated, without damage to the pipe or joint material, immediately prior to forcing the sections of pipe together. During hot weather the Contractor shall place kraft or other approved paper over the joints to avoid mixing soil with the plastic gasket material. For joints constructed of either bituminous plastic sealer or flexible plastic material, special care shall be taken to provide an equal uniform joint between pipe sections and to prevent one section from supporting the other. Backfilling operations may follow immediately. Pickup holes in pipe shall be plugged using a plastic sealer covered with suitable fabric, or a method approved by the Engineer. Flexible steel conduits shall be firmly joined by coupling bands. The ends of flexible conduits fabricated with helical corrugati ons shall be adapted by reforming and/or modification for circumferential corrugated coupling bands. The width and thickness of corrugated bands for both circumferential and helical corrugated flexible conduits shall be in accordance with AASHTO M 36 except that the bands shall be no less than 10½ inches in width. In lieu of the preceding requirem ents and in addition to bein g supplied or r ecommended by the pipe manufacturer, coupling bands for joining corrugated polyethylene pipe shall be in accordance with AASHTO M 294 and shall meet or exceed the soil-tightness requirements of the AASHTO Standard Specifications for Highway Bridges, Section 26, paragraph 26.4.2.4 (e). Corrugated polyethylene pipe may also be furnished with bell & spigot type joints with O- ring rubber gasket meeting ASTM F 477 placed on the spigot end. At least two (2) corrugations of the spigot end must insert into the bell end. Joints and fittings for poly (vinyl chloride) (PVC) pipe shall meet the requirements of ASTM F 949.
603.03.4 2--Pipe With Gaskets . Unless otherwise specified, joints for pipe requiring
gaskets shall conform to the following:
a.Pipes requiring gaskets shall be constructed to accommodate the gasket in accordance with the recommendations of the manufacturer of the gasket. Rubber gaskets shall comply with Subsection 707.04, and flexible plastic gaskets shall comply with Subsection 707.06.
b.In municipalities and other local governments having codes and specifications for joining sanitary sewer conduit, the local codes and specifications shall be applicable.
c.Depending upon the type of pipe specified and the joint to be used, the Contractor shall perform the joining in accordance with the recommendations of the manufacturer of the joint material to the extent that the line will be water proofed both from infiltration and exfiltration in sofar as is practicable. Evidence of leakage shall be corrected immediately.
d.Evidence of leakage or suspected leakage may be cause for requiring the Contractor to perform testing to determin e the leakage present. In the case of sanitary sewer lines, leakage exceeding the tolerance permitted under the local governing code, or in the absence of such code the tolerances permitted by MDEQ, Office of Pollution Control, will not be allowed. Leakage in excess of the tolerances perm itted shall be corrected by reworking the line as necessary. Retesting may be required if deemed by the Engineer to be indicated. All testing shall be at no additional cost to the Department.
603.03.5 Relaid Pipe . These construction specifications shall equally apply to relaid
conduits. In addition, conduit salvaged for relaying shall be cleaned of all foreign material prior to reinstallation. All pipe damaged through carelessness or negligence on the part of the Contractor shall be replaced by new pipe or approved pipe at no additional cost to the Department. Pipe and end sections designated for removal and relaying shall be removed in accordance with the provisions of Subsection 202.03.4. 603.03.6--Field Strutting . Where required by the plans, the vertical diameter of round flexible pipe shall be uniformly increased five percent by means of jacks applied after the entire line of pipe has been installed on the bedding but before backfilling. The vertical elongation shall be uniformly maintained by m eans of sufficient sills and struts or by sufficient horizontal ties as specified. Only horizontal ties shall be used for paved invert pipe. Ties and struts shall be removed after th e embankment is completed and compacted.
603.03.7 Backfilling . Conduit shall be inspected before backfill is placed. Conduit found
to be out of alignment, unduly settled, or damaged shall be taken up and relaid or replaced. After approval of conduit, it shall be backfilled with specified materi al in accordance with Subsection 203.03.8.6. Backfill of non-rigid corrugated polyethylene and poly (vinyl chloride) (PVC) pipe used in cross drains and storm drains shall be performed using one of the following methods:
1.Flowable fill meeting the requirements of Section 612 of the Standard Specifications. If flowable fill is used, care shall be taken to prevent the pipe from “floating.”
2.Crushed stone aggregate meeting the requirements of Subsection 703.04.3 of the Standard Specification. No separate measurement will be made for backfilling pipe. Costs associated with backfilling pipe will be included in the cost of the pipe. 603.03.8--Imperfect Trench . Under this method, the embankment shall be completed to a height above the conduit equal to the vertical outside diameter of the conduit plus one foot. A trench equal in width to the outside horizontal diameter of the conduit shall then be excavated to within one foot of the top of the conduit with the trench walls being as nearly vertical as possible. This trench shall be loosely filled with highly compactable soil. Straw, hay, corn stalks, leaves, brush, or sawdust may be used to fill the lower one-fourth to one-third of the trench. Construction of the remainder of the embankment shall then proceed in a normal manner.
603.03.9 Pipes and Encase ments Jacked or Bored. No pipe shall be placed by jacking
or boring unless so desi gnated in the contract. When jacking or boring is designated, the area of placement shall be carefully investigated so as not to interfere with existing underground utilities. Care shall also be taken to keep the disturbed area of construction to a minimum. The line and grade and the limits , if any, of placement to be made by conventional open trench methods for each line of pipe will be es tablished as provided in Subsection 105.08. Unless otherwise shown on the plans, sections of steel pipe shall be joined by welding for the full circumference of the pipe to form a c ontinuous, rigid, watertight structure of the required length. Welding shall be perfor med in accordance with Subsection 810.03.5.
603.03.9 1--Jacking . The designated strength of the pipe to be jacked is determined for
the final loading under the embankment. Additional reinforcement or strength of pipe required to withstand jacking pressure shall be the responsibility of the Contractor. Extra strength pipe furnished by the Contractor shall be at no additional cost to the Department. Pipe larger than a 3½-inch ID shall not be pushed or jacked without boring or otherwise removing the soil as the pipe is advanced. Suitable pits or trenches, when required, shall be excavated for the jacking operation and for placing the end joints of pipe. Where necessary, they shall be securely sheeted and braced to prevent caving. Where pipe is required to be installed unde r railroads, highways, streets or other facilities by jacking or boring methods, construction shall be done in a manner that will not interfere with the operation of the facility or weaken the roadbed or structure. Jacks for forcing the pipe through the roadbed shall have a jacking head constructed in such a manner as to apply uniform pressure around the ring of the pipe. The pipe to be jacked shall be set on guides braced together to properly support the section of the pipe and direct it to the proper line and grade. In gene ral, roadbed material shall be excavated just ahead of the pipe, the excavated material removed through the pipe, and the pipe then forced through the roadbed into the excavated space. When requested, the Contractor shall furnish for the Engineer's approval a plan showing proposed method of handling. The plan shall include the design for the jacking head, and show the jacking support or back stop, arrangement and position of jacks, pipe guides, etc. complete in assembled position. The approval of this plan by the Engineer will not relieve the Contractor from the responsibility of obtaining the specified results. The diameter of the excavation shall conform to the outside circumference of the pipe as closely as practicable. Voids that develop du ring the installation operation and that are determined by the Engineer to be detrimental to the work shall be pressure grouted with an approved mix. The distance that the excavation extends beyond the end of the pipe will depend upon the character of the excavated material, but shall not exceed two feet in any case. This distance shall be decreased on instructions from the En gineer if the character of the material being excavated makes it desirable. The pipe shall be jacked from the low or downstream end. Variation in the final position of the pipe from the line and grade established will be permitted only to the extent of two percent in lateral alignment and one percent in vertical grade, provided that the final grade of flow line is in the direction designated. The Contractor may use a cutting edge around the head end that extends a short distance beyond the pipe end and has inside angles or lugs to keep the cutting edge from slipping back into the pipe. When jacking of pipe is begun, the operatio n shall be carried on without interruption, insofar as practicable, to prevent the pipe from becoming firmly set in the embankment. All pipe damaged in jacking operations shall be removed and replaced by the Contractor at no additional cost to the State. Pits or trenches excavated to facilitate jacking operations shall be backfilled immediately after the jacking has been completed. 603.03.9.2--Boring . The boring shall proceed from a pit provided for the boring equipment and workmen. Excavation for pits and installation of shoring shall be as outlined under jacking. The location of the pit shall meet the approval of the Engineer. The holes are to be bored mechanically. The boring shall be done using a pilot hole. By this method an approximate two-inch pilot hole shall be bored the entire length of th e crossing and shall be checked for line and grade on the opposite end of the bore from the work pit. This pilot hole, when approved, shall serve as the centerline of the larger diameter hole to be bored. Excavated material shall be placed near the top of the working pit and disposed of as required. The use of water or other fluids in connection with the boring operation will be permitted only to the extent to lubricate cuttings as provided herein. Jetting will not be permitted. In unconsolidated soil formations, a gel-forming colloidal drilling fluid consisting of at least 10 percent of high grade carefully processed bentonite may be used to consolidate cuttings of the bit, seal the walls of the hole, and furnish lubrication for subsequent removal of cuttings and installation of the pipe immediately thereafter. Allowable variation from line and grade shall be as specified under jacking. Precise measures are to be taken to prevent overcutting. Overcutting in excess of one-half inch shall be remedied by pressure grouting.
603.03.9 3--Grouting, Backfilling, and Cleanup . After the jacked conduit is in place, all
joints in concrete pipe shall be cleaned carefully and pointed from the inside to afford a smooth continuous interior surface. Extension of the line beyond that required to be jacked or bored shall be by conventional methods as set out in this section. As soon after jacking as possible, the inters tices around the outside of the pipe shall be filled by pressure grouting. The grout mixture shall consist of fine sand or silt, Type I cement of not less than 15 percent by volume, and water. The grout shall be placed through holes bored at such intervals that the grout can be determined as rising in an adjacent hole at least six inches above the top of the pipe. The water content of the grout shall be the minimum necessary to provide proper placement. Grouting shall be performed by qualified personnel with equipment especially designed for the purpose. At the end of each day's grouting operation, or at the completion of the grouting operation for each line of pipe, whichever occurs first, the conduit shall be carefully inspected on the inside and all grout that penetrated the pipe shall be removed and the inside surface wiped clean. Other waste grout that will impair the work shall be removed and disposed of. After successive operations are completed, all sheeting, shoring, etc. shall be removed, excavations backfilled to the surface of the existing ground or as directed, the backfill compacted in accordance w ith the specifications, and all surplus material disposed of to the satisfaction of the Engineer.
603.04 Me thod of Measurement . The lengths of pipe and precast box culverts will be
measured by the linear foot by multiplying the number of commercial lengths installed by the nominal length per section, with the exception that portions of commercial lengths extending more than four feet beyond the ends of conduit actually required or at the face of structures will not be measured for payment. Unless otherwise indi cated on the plans, sections of lines of conduits placed by conventional methods will not be meas ured as pipe jacked or bored. End sections, headwalls, elbows, branch conn ections, and other appurtenances for which pay items are listed will be measured by the numb er of units of the kind and size specified. Concrete collars used for connecting non-rigid pipe to concrete end sections will not be measured for payment and the costs shall be absorbed in the cost of other pay items. Pipe removed and relaid will be measured by the linear foot. End sections removed and relaid will be measured by the unit. Excavation for conventionally installed conduits will be measured and paid for as set out in Section 206. Excavation fo r conduits placed by jacking or boring will not be measured for separate payment. Excavation for precast box culverts will be meas ured in cubic yards as set out in Section 206 for cast-in-place box culverts of comparable sizes.
603.05 Basis of Payment . Accepted quantities of pipe an d precast box culverts will be
paid for at the contract unit price per linear foot. End sections, headwalls, elbows, branch conn ections, and other appurtenances for which pay items are listed in the contract will be paid for at the contract unit price per each. Pipe removed and relaid will be paid for at the contract unit price per linear foot. End sections removed and relaid will be paid for at the contract unit price per each. The prices thus paid shall be full compensation for completing the work. Materials or work for which a pay item is not included and are necessary to complete the work under this section shall be furnished or performed and shall be considered incidental to the completed construction. Payment will be made under: FERROUS METAL CONDUIT 603-A: ___" Steel Pipe, Wall Thickness _____ - per linear foot 603-B: ___" Cast Iron Pipe, Class _____, Description - per linear foot ALTERNATE CONDUIT 603-ALT: ___" Type ____ Alternate Pipe - per linear foot CONCRETE CONDUIT 603-CA: ___" Reinforced Concrete Pipe, Class _____ - per linear foot 603-CB: ___" Reinforced Concrete End Section - per each 603-CC: ___" Non-Reinforced Concrete Pipe, Class ____ - per linear foot 603-CD: 48" x 72" Concrete Pipe Cattlepass - per linear foot 603-CE: ___" x ___" Concrete Arch Pipe, Class ____ - per linear foot 603-CF: ___" x ___" Concrete Arch Pipe End Section - per each For conduit required to be jacked or bored, the appropriate pay item listed above will contain the term "Jacked or Bored", as applicable. For conduit required to have rubber type or flexible type gasket, the appropriate pay item listed above will contain the term "Rubber Type Gasket" or "Flexible Type Gasket", as applicable. CORRUGATED FERROUS METAL CONDUIT 603-MA: ___" * Coated Corrugated Metal Pipe, ____ Gage, ______ Corrugation - per linear foot 603-MB: ___" * Coated Corrugated Metal End Section, ____ Gage - per each 603-MC: ___" x ___" * Coated Corrugated Metal Arch Pipe, _____ Gage, _____ Corrugation - per linear foot 603-MD: ___" x ___" * Coated Corrugated Metal End Section, _____ Gage - per each 603-ME: ___" * Coated Paved Invert Corrugated Metal Pipe, _____ Gage, _____ Corrugation - per linear foot 603-MF: ___" * Coated Paved Invert Corrugated Metal End Section, _____ Gage - per each 603-MG: ___" x ___" * Coated Paved Invert Corrugated Metal Arch Pipe, ______ Gage, _____ Corrugation - per linear foot 603-MH: ___" x ___" * Coated Paved Invert Corrugated Metal End Section, _____ Gage - per each * Type Coating to be shown as either Zinc, Aluminum, Polymeric or Bituminous. NOTE: The gage of pipe specified for various coating types will vary according to the Department's design policy. CORRUGATED NON-FERROUS METAL CONDUIT 603-NA: ___" Corrugated Aluminum Pipe, _____ Gage, _____ Corrugation - per linear foot 603-NB: ___" Corrugated Aluminum End Section, _____ Gage - per each 603-NC: ___" x ___" Corrugated Aluminum Arch Pipe, _____ Gage, _____ Corrugation - per linear foot 603-ND: ___" x ___" Corrugated Aluminum End Section, ______ Gage - per each 603-NE: ___" Bituminous Coated Corrugated Aluminum Pipe, _____ Gage - per linear foot 603-NF: ___" Bituminous Coated Corrugated Aluminum End Section, _____ Gage - per each 603-NG: ___" x ____" Bituminous Coated Corrugated Aluminum Arch Pipe, _____ Gage, _____ Corrugation - per linear foot 603-NH: ___" x ___" Bituminous Coated Corrugated Aluminum End Section, _____ Gage - per each 603-NI: ___" Bituminous Coated Paved Invert Corrugated Aluminum Pipe, _____ Gage, _____ Corrugation - per linear foot 603-NJ: ___" Bituminous Coated Paved Invert Corrugated Aluminum End Section, _____ Gage - per each 603-NK: ___" x ___" Bituminous Coated Paved Invert Corrugated Aluminum Arch Pipe, ____ Gage, ____ Corrugation - per linear foot 603-NL: ___" x ___" Bituminous Coated Paved Invert Corrugated Aluminum End Section, _____ Gage - per each CORRUGATED POLYETHYLENE CONDUIT 603-PE: ___" Corrugated Polyethylene Pipe - per linear foot CORRUGATED POLY VINYL CHLORIDE CONDUIT 603-PVC: ___" Corrugated Poly Vinyl Chloride Pipe - per linear foot PRECAST BOX CULVERTS 603-PA: ___' x ___' Precast Concrete Box Culvert - per linear foot 603-PB: ___' x ___' Precast Concrete Box Culvert End Section - per each RELAID PIPE 603-RA: ___" Pipe Removed and Relaid - per linear foot 603-RB: ___" End Section Removed and Relaid - per each SPECIALS AND CO NCRETE HEADWALLS 603-SA: Special Section, Descri ption - per each or linear foot 603-SB: Size Branch Connection Type & Description - per each 603-SC: Size & Type Headwall, Per Plans - per each SECTION 604 - MANHOLES, INLETS AND CATCH BASINS
604.01 Description . This work consists of the construction of manholes, inlets, and catch
basins in accordance with these specifications and in reasonably close conformity with the details, lines, grades, and dimensions shown on the plans or established by the Engineer. Precast sectional manholes shall consist of furn ishing and assembling precast sections for manholes, together with necessary fittings, ba ses, and connections, all constructed in accordance with these specifications and in reas onably close conformi ty with the details, lines, grades and dimensions shown on the plans, or established.
604.02 Materials . The materials used in this construction shall meet the requirements
specified in the following Section or Subsections: Masonry Brick, Grad e SM ............................................................................... 706.01 Mortar ............................................................................................................... 714.11 Concrete ................................................................................................................ 601 Reinforcing Steel ............................................................................ 711.00 and 711.01
Source: Mississippi Standard Specifications for Road and Bridge Construction, 2017 Edition. Pages 397–407 of 1,113.