AASHTO R 63-13 (2021) PDF Download

AASHTO R 63-13 (2021) is a standard practice that provides guidance for the specification and use of solid wall high-density polyethylene (HDPE) conduit for non-pressure applications. This standard is specifically focused on the protection of power and telecommunications cables in various applications, including highways, airport lighting, traffic control, and fiber optic data and command and control systems in State Transportation Projects.

The standard covers the use of HDPE conduit in different scenarios, such as using it as a casing for the protection of smaller individual conduits (innerducts) in road crossings. It also includes HDPE conduit in various forms, including coils, on steel reels, or in straight sticks. Additionally, the standard covers the use of cable in conduit (CIC) installations, where the power, CATV, or fiber optic cables are installed in the conduit during the manufacturing process.

HDPE conduit is commonly used in standalone duct installations for the protection of power cables, CATV, or fiber optic cables. It is also suitable for standalone duct applications in road crossings, provided that the bury depth is sufficient to avoid degradation effects on the road. Furthermore, HDPE conduit can be used in standalone duct applications parallel to the roadway.