The Design Standards Unit issues revisions to the Bridge Design Guides, Bridge Design Manual, Road Design Manual, and Road & Bridge special details on a monthly basis. Notifications of updates are made via subscription to the Road and Bridge Design Publications Listserv. The monthly update consists of a single PDF file for download that is comprised of the revisions to each publication for the month.

2012 - May 

2012 - April 

2012 - March 

2012 - February 

2012 - January 

2011 - December 

2011 - November