7-50 Sectio N 710 – Culverts , Stor M Drains , and Sewe R Pipes , Nonmetal
710.0 1 REINFORCE D CONCRET E PIPE. Reinforced concrete pipe shall conform to the requirements of AASHTO M 170 with the following notes or exceptions:
a.Design Requirements . The circular reinforcement specified in AASHTO M 170, Table 3 for 24 - inch, Class III, Wall B pipe shall be 0.1 square inch per foot of pipe wall. Elliptical reinforcement shall not be used in circular pipes. All pipes 24 inches in diameter or smaller shall be of the bell -and-spigot type. Pipes larger than 24 inches in diameter may be either of the tongue -and-groove or bell -and-spigot types. 710.0 2 REINFORCE D CONCRET E PIPE END SECTIONS . Reinforced concrete pipe end sections shall conform to the requirements of Subsection 710.01 . Where two cages of reinforcement are required in accordance with AASHTO M 170 , they shall be placed in the barrel of the end section only. Reinforcement of the apron section shall be equal in area to the inner cage of the barrel reinforcement. 710.0 3 CORRUGATE D POLYETHYLEN E PIPE (CPEP) . CPEP shall be evaluated in accordance with the AASHTO Product Evaluation & Audit Solutions work plan for Evaluation of HDPE (High Density Polyethylene) Thermoplastic Drainage Pipe Manufacturers and in compliance with the AASHTO Product Evaluation & Audit Solutions audit program for thermoplastic pipe. CPEP shall be one of the products listed on the Agency’s Approved Products Li st for the respective material specification.
a.Corrugated Polyethylene Pipe, Unlined .
1.Small Diameter . CPEP, unlined, with a nominal diameter of 3 inches to 10 inches, inclusive, shall be in accordance with AASHTO M 252 , Type C.
2.Large Diameter . CPEP, unlined, with a nominal diameter of 12 inches to 60 inches, inclusive, shall be in accordance with AASHTO M 294 , Type C.
b.Corrugated Polyethylene Pipe, Smooth Lined .
1.Small Diameter . Smooth lined CPEP with a nominal diameter of 3 inches to 10 inches, inclusive, shall be in accordance with AASHTO M 252 , Type S.
2.Large Diameter . Smooth lined CPEP with a nomi nal diameter of 12 inches to 60 inches, inclusive, shall be in accordance with AASHTO M 294 , Type S.
c.Corrugated Polyethylene Pipe, Perforated . Perforated CPEP shall be in accordance with AASHTO M 252 , Type CP or Type SP. Large diameter CPEP may be made of virgin materials , recycled materials, or a blend of both in accordance with AASHTO M 294 .
7-51 710.0 4 ACRYLONITRILE -BUTADIENE -STYRENE (ABS) PLASTI C PIPE. ABS pipe shall conform
to the requirements of ASTM D2680 . 710.0 5 POLYVINY L CHLORIDE (PVC) PLASTI C PIPE. PVC pipe shall conform to the requirements of Table 710.0 5A. TABLE 710.0 5A – PVC PIPE MATERIAL REQUIREMENTS Pipe Type Pipe Dimensions Standard Smooth wall, perforated or un-perforated 4 – 16 inches (100 – 375 mm) AASHTO M 278 18 – 28 inches (450 – 700 mm) ASTM F679 1 Corrugated, with smooth interior All sizes ASTM F949, ASTM F794 1 Pipe with other cell classifications that meet or exceed the performance requirements of ASTM D3034 will be permitted if the wall thickness is not less than 94% of that in AASHTO M 278 . 710.0 6 CORRUGATED POLYPROPYLENE PIPE (CPPP) . CPPP shall be evaluated in accordance with the AASHTO Product Evaluation & Audit Solutions work plan for Evaluation of Polypropylene Drainage Pipe Manufacturers and in compliance with the AASHTO Product Evaluation & Audit Solutions audit program for thermoplastic pipe. CPPP shall be one of the products listed on the Agency’s Approved Products List for the respective material specification.
a.Corrugated Polypropylene Pipe, Unlined . Unlined CPPP shall be in accordance with AASHTO M 330, Type C.
b.Corrugated Polypropylene Pipe, Smooth Lined . Smooth lined CPPP shall be in accordance with AASHTO M 330 , Type S.
7-52 Sectio N 711 – Culverts , Stor M Drains , and Sewe R Pipes , Metal
711.0 1 CORRUGATE D STEEL PIPE, PIPE ARCHES , AND UNDERDRAINS . Corrugated steel pipe, elbows, end sections, reducer units, pipe arches, underdrain, risers, flushing basins, and coupling bands shall conform to the requirements of AASHTO M 36 . Material furnished under this subsection shall be formed from sheet material coated in accordance with AASHTO M 218, AASHTO M 274 , or AASHTO M 289.
a.Coupling Bands . Coupling bands shall conform to the requirements of AASHTO M 36 , with the following modifications:
1.Coupling bands and their connections shall be of such dimensions as required to meet the Erodible Special Joint category criteria of AASHTO Standard Specifications for Highway Bridges, Section 26 . Structural steel for band connections shall meet the requir ements of ASTM A36 .
a.The only approved method of connection and connection details at the ends of the bands shall be 2 inch 2 inch 3/16 inch galvanized steel angles extending the full width of the band as detailed in Standard Drawing D-4.
b.12-gauge die -cast angles shall be used with a configuration that provides at least the same section modulus as the 2 inch 2 inch 3/16 inch angle, extending the full width of the band.
c.A minimum of two bolts shall be used for 7 inch wide coupling bands, three bolts shall be used for 12 inch wide coupling bands, and five bolts shall be used for 24 inch wide coupling bands. All bolts shall be uniformly spaced. Bolts, nuts, and other threaded items used with coupling bands shall be coated by the electroplating process as specified in ASTM B633, Class Fe/Zn 25, the zinc coating process as specified in AASHTO M 232 , or the mechanical zinc coating process as specifi ed in ASTM B695 , Class 25.
d.Angles shall be connected to bands by one of the following methods:
1.Spot welds spread over full width of the band
2.Stitch -welds over the full width of the band
3.Attached by rivets
Source: Vermont Standard Specifications for Construction, 2024 Edition. Pages 1202–1203 of 1,380.