A 15 year bridge rehabilitation programme for trunk road bridges was announced in November 1987. A major part of that programme was the assessment, and where necessary, strengthening of bridges for current loading including 40t vehicles and 11.5t axle loads which were to be permitted from January 1999.
This circular was intended to assist local highway authorities to formulate strategies for tackling similar work on their own roads. It also gives information on new weight restriction signs and Model Traffic Orders for their deployment.
Department for Transport