DMRB CS 458 – The assessment of highway bridges and structures for the effects of special type general order (STGO) and special order (SO) vehicles

Access free from the DMRB website. Also available from CIS.

National Highways document. The use of this document enables the effects of special type general order (STGO) and special order (SO) vehicles to be determined for use in the assessment of structural safety and serviceability of highway bridges and structures. This document provides key information that is required to manage risks associated with STGO and SO vehicles, and maintain a safe and operational network.