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Seismic Design

ODOT Seismic Data Sheet

ODOT Design Response Spectrum Program

Seismic Design Maps

Cascadia Subduction Zone ARS -- Web program used to generate acceleration response spectra for "operational" criteria (full rupture Cascadia Subduction Zone Earthquake). This program is maintained by Portland State University through an agreement with the Oregon Department of Transportation.

Other Materials

FHWA Seismic Retrofit Manual

Seismic Retrofitting Manual for Highway Structures
 
  • Part 1 – Bridges (PDF), January 2006
    Publication No. FHWA-HRT-06-032
  • Part 2 – Retaining Structures, Slopes, Tunnels, Culverts, and Roadways , August 2004
    Publication No. FHWA-HRT-05-067
  • Seismic Retrofitting Guidelines for Complex Steel Truss Highway Bridges, June 2006

Other FHWA Guidance

A bridge expanding off into the distance over water 

Contact the Bridge Engineering Section

4040 Fairview Industrial Drive SE, MS-4
Salem, Oregon 97302-1142
Phone: 503-986-4200

Program Contact

Phone: 503-986-3333

Seismic Design Examples

Foundation modeling

Drilled shafts  

Restrainers

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