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U.S. 197: The Dalles (Columbia River) Bridge Deck Replacement

Construction Phase

Region 4: Central Oregon (The Dalles, Wasco)

​​Bridge Safety Project


Traffic Impact

During construction when The Dalles Columbia River Bridge is closed, traffic will be re-routed to the east using I-84 to Biggs Junction, across the Columbia River into Washington and using U.S. 97 to S.R. 14 west to U.S. 197. 

Construction Impacts

Construction work on the bridge will begin in March, 2021. Expect to see delays and some single lane closures at night throughout the project. Flaggers will be on site when this occurs. Portable message boards will display construction impacts on both sides of the bridge to alert travelers.

Full weekend closures will take place from Labor Day 2021 through Memorial Day 2022. During these weekends, the bridge will close Thursday nights at 8 p.m. and will re-open on Monday mornings at 6 a.m. During these closures, the detour will route traffic across the bridge at Biggs Junction. See map.



Contract Bid Let - Fall 2020

Construction - Spring 2021 - 2022



ODOT, in partnership with the Washington Department of Transportation, will improve the safety and upgrade The Dalles Columbia River Bridge. The project includes:
  • Replacing the exisitng concrete bridge deck
  • Replacing bridge rail
  • Installing new illumination and navigation lights system across the bridge
  • Installing bridge screening over the locks and BNSF Railway​


U.S. 197 | The Dalles Columbia Bridge spans the Columbia River between The Dalles, OR and Dallesport, WA. 

Cost and Funding

Total project cost is just under $41 million. The cost is shared 50/50 with Washington State DOT​


​Hamilton Construction

What Problem Will This Improve?

This steel-truss-cantilever bridge on U.S. 197 was constructed in 1953. The existing bridge deck is failing and needs to be replaced. This bridge crosses the Columbia River and is a crucial connection point between the Dalles, Oregon and Dallesport and Murdock, Washington. This project will remove and replace the exisitng bridge deck and make critical safety repairs. ​

Contacts & Media

Project Area Map

Project Contacts

Resident Engineer (Construction Project Manager)
Brad DeHart

Community Affairs Coordinator
Kacey Davey

Last Updated

2/22/2021 3:57 PM

Project Number


Project Documents

Related documents to this project
DallesBridgeClosure.pdfDalles Bridge Closure Information
DallesBridgePIP.pdfThe Dalles Bridge Deck Replacement Project Information Paper

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