Skip to main content

Oregon State Flag An official website of the State of Oregon »

Geotechnical Design Manual

The ODOT Geotechnical Design Manual establishes standard policies and procedures regarding geotechnical services performed for the Oregon Department of Transportation.

Use this manual on all projects that began work on or after Dec. 1, 2014, and passed the DAP phase gate prior to Jan. 20, 2023.

Contact the Geology & Geotechnical Section

4040 Fairview Industrial Drive SE, MS 6
Salem, Oregon 97302
Phone: 503-986-3252
Fax: 503-986-3249

Program Leads

Related Content

Geology and Geotechnical Engineering

Current GDM Manual