AASHTO M 190-04 (2021) PDF Download

The AASHTO M 190-04 (2021) standard is a specification that outlines the requirements for bituminous-coated corrugated metal culvert pipe and pipe arches. It provides guidelines for the construction of various types of metal culverts. These include Type A, which is fully bituminous-coated, Type B, which is half bituminous-coated with a paved invert, Type C, which is fully bituminous-coated and has a paved invert, and Type D, which is fully bituminous-coated and 100 percent paved or lined.

The standard sets forth the specifications and testing procedures for the materials used in the construction of these culverts, such as the corrugated metal pipe, bituminous coating, and paving materials. It also provides requirements for the installation and maintenance of the culverts to ensure their durability and functionality.