LRFD English Standard Bridge and Structure Drawings


These pages contain standard bridge and structure drawings used for the construction of highway projects. The files are approved versions of the Standard ITD Bridge and Structure Drawings which have been modified for use by consulting engineers. The files are intended to be downloaded individually from this site for use on ITD projects.

The files under each individual Section are also available in a WinZip file for each section. All files are in their native Microstation file format.

The Sections listed in the content bar refer to the Idaho Transportation Department Bridge Design Manual.

Microstation file viewer is available for free at Download Bentley View .


Please send comments, questions and suggestions to
Or write to:
Idaho Transportation Department
Bridge Section
P.O. Box 7129
Boise, Idaho 83707-1129
Street Address:
3131 West State Street
Boise, Idaho 83703