ODOT, US Highway 20: Design-Build Bridges

 As part of the design-build team, GRI provided foundation and geotechnical engineering services for 16 replacement bridges over the Malheur River and side streams and re-alignment of a portion of US Hwy 20. The project sites extend from Riley to Vale along US 20. The bridges ranged up to about 300 feet long and were constructed of precast, prestressed concrete structural elements. Foundation support is provided by driven steel pipe and H-piles and spread footings. GRI completed geotechnical investigations and analyses and prepared a report for each bridge site. GRI personnel provided support services during construction.

Location: Central Oregon

Owner: ODOT

Market Sector: Transportation