607.01 578 SECTION 607 – PIPE CULVERTS AND STORM SEWERS
607.01 Description ................................ ................................ ................... 578
607.02 Materials ................................ ................................ ...................... 578
607.03 Equipment ................................ ................................ .................... 580
607.04 Preliminary Work ................................ ................................ ......... 581
607.05 Structure Excavation and Foundation Preparation ....................... 581
607.06 Laying Pipe Culverts ................................ ................................ .... 581
607.07 Joining Pipe ................................ ................................ .................. 581
607.08 Field Strutting ................................ ................................ .............. 582
607.09 Backfilling and Post Installation Inspection ................................ . 582
607.10 Disposal of Excess or Unsuitable Material ................................ .. 584
607.11 Final Cleanup ................................ ................................ ............... 584
607.12 Method of Measurement ................................ .............................. 584
607.13 Basis of Payment ................................ ................................ .......... 585
DESCRIPTION
607.01 Description
This work consists of constructing pipe culverts, side drains, slope drains, and storm sewers of the kinds and dimensions shown on the Plans or specified in the Contract. The work also includes all labor, materials, and equi pment as may be necessary to make connections with other drainage structures as shown on the Plans or as directed by the Engineer. MATERIALS
607.02 Materials
A.General Provide m aterials as specified in : Joint Mortar ................................ ................................ ........... 905.02 Rubber Gaskets ................................ ................................ ...... 905.03 607.02 579 Reinforced Concrete Pipe (RCP) ................................ ........... 914.02 Polyvinyl Chloride (PVC) Pipe ................................ ............. 914.09 High Density Polyethylene (HDPE) Plastic Pipe ................... 914.10 Steel Reinforced Thermoplastic Ribbed Pipe (SRTRP) ........ 914.11 Polypropylene (PP) Pipe ................................ ........................ 914.12 Corrugated Metal Pipe (CMP) ................................ ............... 915.02 Materials for special end connections to pipes or structures, required to complete the work as shown on the Plans or directed by the Engineer , shall conform to 914 and 915, unless otherwise spec ified. Reinforced concrete pipe shall be, round, arch or elliptical, as shown on the Plans. The sizes of pipe shall be identified by the nominal inside diameter. Provide pipe of the sizes and classes or gauges specified in the Contract, shown on the Plans , or established by the Engineer. For corrugated metal pipe, and pipe arches , the Contractor may use corrugated steel, provided different corrugations are not mixed in a single line of pipe. Aluminum coated corrugated metal pipe shall conform to the requirements of AASHTO M 274 and the Department’s Drainage Manual for pipe culvert gauge. Furnish c oupling bands and all hardware , except nuts, bolts , and washers, of the same material and coating as the pipe. When corrugated metal pipe arches are specified as “size equivalent round,” the dimensions shall be as shown on the Plans.
B.Pipe Culverts Cross Drains , Side Drains, & Storm Drains Where Pipe Culverts (Cross Drains & Median Drains) are specified , provide them in accordance with the following:
1.Pipe Diameters from 18 through 36 inches. Provide materials meeting one of the following:
1.RCP Class III, IV, or V meeting 914.02 or AASHTO M 170, M 206, or M 207 . 607.03 580 2. CMP meeting 915.02 or AASHTO M 274 .
3.HDPE pipe meeting 914.10 or AASHTO M 294 .
4.PVC pipe meeting 914.09 or AASHTO M 304.
5.PP pipe meeting 914.12 or AASHTO M 330 .
6.SRTRP meeting 914.11 or AASHTO M 335.
2.Pipe Diameters Larger than 36 inches through 60 inches. Provide materials meeting one of the following:
1.RCP Class III, IV, or V meeting 914.02 or AASHTO M 170, M 206, or M 207 .
2.CMP meeting 915.02 or AASHTO M 274 .
3.HDPE pipe meeting 914.10 or AASHTO M 294 .
4.PP pipe meeting 914.12 or AASHTO M 330 .
5.SRTRP meeting 914.11 or AASHTO M 335.
3.Pipe Diameters Larger than 60 inches. Provide materials meeting the following:
1.RCP Class III, IV, or V meeting 914.02 or AASHTO M 170, M 206, or M 207.
2.CMP meeting 915.02 or AASHTO M 274.
C.Slope Drains Where Slope Drains are specified, provide materials in acco rdance with one of the following:
1.CMP meeting 915.02 or AASHTO M 274 .
2.HDPE pipe meeting 914.10 or AASHTO M 294 .
3.PVC pipe meeting 914.09 or AASHTO M 304 .
4.PP pipe meeting 914.02 or AASHTO M 330.
5.SRTRP meeting 914.11 or AASHTO M 335. EQUIPMENT
607.03 Equipment
Provide hoisting equipment capable of handling and placing the pipe culvert in final position without damaging the pipe. Include mechanical tamps. 607.04 581 CONSTRUCTION REQUIREMENTS
607.04 Preliminary Work
Perform Clearing and Grubbing, Removal of Structures and Obstructions, Excavation and Undercutting, and Embankment Construction as specified in 201, 202, 203, and 205, respectively .
607.05 Structure Excavation and Foundation Preparation
Perform Structure Excavation and Foundation Preparation as specified in 204. Provide bedding for pipe culverts that conforms to the requirements of 204 or the Standard Drawings . When excavating to install pipe culverts across private property, salvage and replace in its original position, all topsoil and sod disturbed by the excavation operations, unless otherwise specified. Consider all costs of restoring the area to its origina l condition as incidental to other items of construction.
607.06 Laying Pipe Culverts
Lay pipe culverts beginning at the downstream end of the pipe line. Ensure that the lower segment of the pipe is in contact with the shaped bedding throughout its full length. Place bell or groove ends of RCP and outside circumferential laps of flexible pipe facing upstream. Place CMP, HDPE, PP, SRTRP, and PVC pipe with longitudinal laps or seams at the sid es. Lay paved invert pipe so that the longitudinal centerline of the paved segment coincides with the flow line. Place reinforced elliptical concrete pipe with the major axis of the reinforcement less than 5 degrees departure from a vertical plane through the longitudinal axis of the pipe.
607.07 Joining Pipe
RCP may be of bell and spigot or tongue and groove design, unless one type is specified. Join pipe sections so that the ends are fully entered and the inner surfaces are reasonabl y flush and even. Use rubber gaskets or other types of joints recommended by the pipe manufacturer and approved by the Engineer. 607.08 582 To form gasket joints for concrete pipe, install r ubber ring gaskets meeting ASTM C443 for round pipe . Join CMP with approved coupling bands in accordance with ASTM D3212 . HDPE, PP, SRTRP, and PVC pipe shall be joined in accordance with ASTM D3212 and meet the performance requirement for soil -tightness, unless water-tightness is specified. Install joints so that the con nection of pipe sections, for a continuous line, will be free from irregularities in the flow line. If the Engineer approves use of other joint types, install or construct them in accordance with the manufacturer’s recommendations. Inspect the p ipe culvert before placing any backfill , and remove and re -lay or replace pipe found to be out of alignment, unduly settled, or damaged.
607.08 Field Strutting
If required, perform strutting or vertical elongation as shown on the Standard Drawing. Leave ties and str uts in place until the embankment is completed, unless otherwise specified.
607.09 Backfilling and Post Installation Inspection
After the pipe culvert is installed, backfill the trench as specified in 204 and the Standard Drawings. Visually inspect a ll pipe culverts during and after installation to ensure conformance to these Specifications. Conduct the f inal visual inspections for all pipe culverts no sooner than 30 days after completing installation and final fill. Conduct final visual inspections from the inlet and outlet ends of all pipe culverts, providing sufficient hand -held lighting to observe any defects. In addition to visual inspection, perform the testing described below not less than 30 days after completing pipe culvert installation and final fill placement. Perform a ll post installation inspections and testing in the presence of the Engineer as follows:
A.Flexible Pipes: HDPE, PVC, SRTRP, PP, and CMP Conduct a deflection test (mandrel, laser, video, or manual) on at least 10% of the total number of pipe culvert runs, representing a minimum 10% of the total project footage including a minimum of one run of each 607.09 583 pipe culvert diameter . The Engineer will randomly select in stallations to be tested to determine whether the pipe culvert diameter has been reduced greater than 5% of the actual diameter. At any location of a pipe culvert run, i f the deflection is greater than 5% but less than 7.5%, further evaluate all pipe culvert installations to identify excessive deflection s. Provide d ocumentation with pipe culvert station, material type, diameter, deflection location, and length results to the Engineer and Design Engineer for evaluation of excessive deflections based on mat erial type, diameter, deflection location, pipe culvert structural integrity, and effects to pavement stability and drainage . Replace, at no cost to the Department, all pipe culverts with deflections greater than 7.5% of the actual pipe diameter, undue mis alignment, or poor joint construction. Perform all excavation, removal and replacement of pipe culverts with same or different material and all additional work including, but not limited to, bedding, backfill, base stone or asphalt removal and repaving, r equired to correct the pipe installation due to poor construction techniques at no cost to the Department.
B.Rigid Pipe: RCP Visually inspect a ll RCP for alignment, cracking, undue misalignment, abrupt slope changes and joint gasket installation between p ipes at headwalls, catch basins, manholes, etc., for conti nuity, improper backfill or bedding during and after installation ; inspect according to Section 27 of AASHTO Standard Specifications for Highway and Bridges or per ASTM C1840 . If found, further eva luate installations where visual inspections detect poor construction techniques as directed by the Engineer, at no additional cost to the Department. Based on the evaluations, the Engineer and Design Engineer may allow the pipe culvert to remain in plac e if remediations are made according to an approved remediation plan submitted by the producer. The Contractor shall have full understanding of the remediation process prescribed and how to perform the remediation. All remediation work shall be at no cos t to the Department. The Engineer shall inspect pipe culverts for poor installation practices, undue misalignment, abrupt slope changes, joint gasket installation between headwalls, catch basins, manholes, etc., continuity, and improper backfill or bedding. Based on unsatisfa ctory results of inspection or deflection testing, the Engineer may request additional inspections at no cost to the Department 607.10 584 607.10 Disposal of Excess or Unsuitable Material Dispose of excess or unsuitable excavated material as directed by the Engineer. Use excavated material as specified in 204.08.C.
607.11 Final Cleanup
Perform final cleanup as specified in 104.10. COMPENSATION
607.12 Method of Measurement
A.Reinforced Concrete Pipe Culverts The Department will measure reinforced c oncrete pipe culverts of the different classes, shapes, and sizes specified, by the linear foot of pipe installed and accepted. The Department will pay for the quantity of pipe cut off, not to exceed 2 feet, at the contract bid price for pipe in place.
B.Corrugated Metal Pipe Culverts The Department will measure c orrugated metal pipe by the linear foot of pipe installed and accepted. The Depar tment will make m easurements as follows:
1.Corrugated Metal pipe with square and vertical ends or with skewed and vertical ends will be measured, in place, end to end of the metal on the centerline of the structure.
2.Corrugated Metal pipe with square en ds beveled, and with ends skewed and beveled, except arch pipe, will be measured, in place, by averaging the end -to-end distances at the top and bottom of the pipe, measured parallel to the centerline of the structure.
3.Corrugated Metal arch pipe with sq uare ends beveled, and with ends skewed and beveled, will be measured, in place, end to end of the metal along the invert of the structure. 607.13 585 C. HDPE Pipe, PP Pipe, SRTRP, and PVC Pipe Culverts The Department will measure HDPE, PP, SRTRP, and PVC pipe by the linear foot of pipe installed and accepted. The quantity of pipe cut off, not to exceed 2 feet, will be paid for at the contract bid price for pipe in place.
D.Slope Drains The Department will measure Slope Drains in the same manner as specified for corrugate d metal pipe in 607.12.B.
E.Side Drains The Department will measure Pipe Culverts (Side Drains) of the different sizes specified by the linear foot along the centerline of the installed pipe, not to exceed the ordered length of t he pipe. Order Pipe Culverts (Side Drains) in increments of 2 feet.
F.Incidentals Unless otherwise shown on the Plans, the Department will not measure structure excavation , and will consider such work incidental to other items of construction. When the Plans provide for direct payment for structure excavation, the Department will make measurement and payment in accordance with 204. The Department will not pay for labor and materials us ed in making branch connections. The length of pipe in the branch connection will be measured and include d in the quantity of pipe culvert installed in the branch line. The Department will not separately measure s trutting of flexible pipe culverts but will consider such costs as included in the unit price bid per linear foot of pipe.
607.13 Basis of Payment
The Department will pay for accepted quantities at the contract prices as follows: 607.13 586 Item Pay Unit __” (Type) Pipe Culvert (Description ) Linear Feet (Type) Pipe Arch (Size) Linear Feet __” Slope Drain Pipe Linear Feet __” Crossdrain Pipe Culvert Linear Feet Box Culvert (Size) Linear Feet __” Slotted Drain Pipe Linear Feet Such payment is full compensation for all labor and materials used in making joints and connections to other structures; for strutting, when required; excavation, bedding, and backfill, unless otherwise provided for in the Contract, and for completing all incidentals necessary to complete the item. 608.01 587 SECTION 608 – SANITARY SEWERS
608.01 Description ................................ ................................ ................... 587
608.02 Materials ................................ ................................ ...................... 587
608.03 Equipment ................................ ................................ .................... 588
608.04 Preliminary Work ................................ ................................ ......... 588
608.05 Structure Excavation and Found ation Preparation ....................... 588
608.06 Laying Pipe ................................ ................................ .................. 588
608.07 Constructing Joints ................................ ................................ ....... 589
608.08 Connections ................................ ................................ ................. 589
608.09 Test for Watertightness ................................ ................................ 590
608.10 Backfilling ................................ ................................ ................... 590
608.11 Method of Measurement ................................ .............................. 590
608.12 Basis of Payment ................................ ................................ .......... 591
DESCRIPTION
608.01 Description
This work consists of constructing sanitary sewers, or parts of sewers, composed of the kinds and dimensions of pipe shown on the Plans or established by the Engineer. The work also includes such inc identals, materials, and labor as may be necessary to make connections with other structures, as shown on the Plans or as directed by the Engineer. MATERIALS
608.02 Materials
Provide materials as specified in: Joint Mortar ................................ ................................ ........... 905.02 Rubber Gaskets ................................ ................................ ...... 905.03 Hemp or Oakum Gaskets ................................ ....................... 905.04 Concrete Pipe, Non -Reinforced ................................ ............. 914.01 Concrete Pipe, Reinforced ................................ ..................... 914.02 Vitrified Clay Pipe ................................ ................................ . 914.06
Source: Tennessee Standard Specifications for Road and Bridge Construction, 2021 Edition. Pages 587–595 of 1,072.