As of January 1, 2020, all new and replacement bridge rails installed on the National Highway System are required to conform to the requirements stipulated in the Manual for Assessing Safety Hardware, ...
AASHTO. (2020a). LRFD Bridge Design Specifications, 9th ed. Washington, DC. AASHTO. (2020b). The Manual for Bridge Evaluation, 3rd ed., with 2020 Interim Revisions ...