AASHTO MP 20-13 (2017) PDF Download

The AASHTO MP 20-13 (2017) standard provides requirements and testing methods for steel-reinforced polyethylene ribbed pipes, couplings, and fittings used in surface and subsurface drainage applications. The standard covers nominal sizes ranging from 300 to 1500 mm (12 to 60 in.) in diameter.

The specification outlines the materials, workmanship, dimensions, pipe stiffness, impact resistance, tensile strength of seams, shape stability, joining systems, and form of markings for these steel-reinforced PE ribbed pipes. These pipes are designed to collect or convey drainage water through open gravity flow as culverts, storm drains, and other similar applications where the soil provides support to the flexible walls of the pipe.

Note 1 highlights the importance of considering the protection of any exposed portions of the PE pipe due to its combustibility and vulnerability to prolonged exposure to ultraviolet radiation.

It is important to note that this specification focuses on the materials requirements of the steel-reinforced PE ribbed pipe. The structural design of such culverts and the proper installation procedures are covered in the AASHTO LRFD Bridge Design Specifications, Section 12, and AASHTO LRFD Bridge Construction Specifications, Section 26, respectively.