C76-22a Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
C506-22a Standard Specification for Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe
C655-19a Standard Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer Pipe
- See also WK87980 proposed revision
- See also WK89537 proposed reapproval
WK89371 Standard Specification for Circular Precast Concrete Culvert, Storm Drain, and Sewer Pipe for Microtunneling