Skip Top Navigation

Border Bridges

Washington shares the responsibility for preserving, maintaining and operating nine bridges with Oregon and two bridges with Idaho. Both states make the future preservation of these bridges a top priority in their bridge programs.

US101 Astoria-Megler Bridge (ODOT)

US 101 Astoria Bridge
US101 Columbia River Bridge near Astoria
ODOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The Astoria-Megler Bridge was opened to traffic in August of 1966 and is over 4 miles in length (21,474 feet). The bridge has a cantilever through truss span near the Oregon side and standard through truss spans near the Washington side with prestress concrete girder spans in the middle. The average daily traffic is nearly 7,100.

ODOT has completed the painting of the steel spans near the Washington side (total cost nearly $16 million). The painting of the steel near Oregon side is planned to be completed in two phases. The first phase to paint the steel above the roadway is scheduled to be complete by July,2015 (total cost nearly $22 million). The second phase is scheduled to begin after July 2015.

July 2015-17 work planned
Paint the steel below the roadway on the steel spans near Oregon. Total estimated cost is anticipated to be between $20 - 25 million shared equally between ODOT and WSDOT.

SR433 Lewis and Clark Bridge (WSDOT)

SR 433 Lewis and Clark Bridge
SR433 Lewis and Clark Bridge near Longview
WSDOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The Lewis and Clark Bridge was opened to traffic in March of 1930 and is 5,478 feet in length. The bridge has a cantilever through truss span over the main channel of the Columbia River and steel girder and deck truss approach spans. The average daily traffic is nearly 21,000. This bridge is a vital link between Longview, Washington and Rainier, Oregon.

WSDOT completed a deck replacement in 2004. Painting the steel members was completed in 2013 as part of three separate contracts. No other preservation projects are planned over the next 10 years.

Interstate 5 Bridges (ODOT)

I5 bridges in Portland and Vancouver
Interstate 5 bridges between Portland and Vancouver
ODOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The northbound bridge was opened to traffic in 1917 and the southbound bridge was opened in 1958. The bridges are 5,478 feet in length. The bridge have through steel truss spans including one vertical lift span. The average daily traffic on both bridges combined is nearly 130,000. This bridge is a vital link between Oregon and Washington.

Future planned work
ODOT has identified a need to replace the Movable span Trunnion on the north side of the northbound bridge. Total estimated cost is anticipated to be between $5 - 10 million shared equally between ODOT and WSDOT.

Interstate 205 Glenn Jackson Bridge (ODOT)

I-205 Glenn Jackson Bridge
I-205 Glenn Jackson Bridge near Portland and Vancouver
ODOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The Glenn Jackson Bridge was opened to traffic in December of 1982 and is 10,580 feet in length. The bridge consists of concrete post-tensioned segmental box sections. The average daily traffic is nearly 137,000. This bridge is a vital link and serves as a alternative route to Interstate 5 between Oregon and Washington.

Future planned work
ODOT has identified a need to replace the modified concrete overlay within the next 10 years. The cost and timing of the project has not been finalized.

US197 Dalles Bridge (ODOT)

US 97 Dalles Bridge
US97 Dalles Bridge near Dalles, Oregon
ODOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The Dalles Bridge was opened to traffic in December of 1953 and is 3,345 feet in length. The bridge consists of a steel cantilever through truss main span and steel girders in the approach spans. The average daily traffic is nearly 8,400.

Future planned work
ODOT has identified a need to replace lightweight concrete bridge deck and paint the steel members within the next 10 years. The cost and timing of the project has not been finalized.


US97 Sam Hill Memorial Bridge (WSDOT)

US97 Sam Hill Memorial Bridge
US97 Sam Hill Memorial Bridge near Biggs Junction, Oregon
WSDOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The Sam Hill Memorial Bridge (also known as the Biggs Rapids bridge) was opened to traffic in November of 1962 and is 2,567 feet in length. The bridge consists of steel truss span over the main navigational channel and steel girder approach spans. The average daily traffic is nearly 5,100.

WSDOT completed a deck replacement in 2009. Painting the steel members is currently under construction with a total cost of nearly $10 million. The painting is scheduled to be complete in 2015. No other preservation projects are planned over the next 10 years.

Interstate 82 Umatilla Bridges (WSDOT)

I-82 Umatilla Bridges
I-82 Umatilla Bridges near Umatilla, Oregon
WSDOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. The older northbound bridge was opened to traffic in 1955 and the newer southbound bridge was opened in 1988.

The older steel truss bridge is 3,308 feet in length and the newer concrete segmental bridge is 3,433 feet in length. The average daily traffic on both bridges combined is nearly 8,150.

Future planned work
WSDOT has identified a need on the older 1955 bridge to replace lightweight concrete bridge deck. The design is scheduled to start after July 2015 with construction to be done in 2017-18. The total cost to replace the deck is likely to be between $15-$20 million. The steel bridge is also in need of painting with funding likely to be available in 2021-23. The total cost to repaint the bridge is likely to be nearly $35 - $40 million.

US12 Snake River Clarkston Bridge (WSDOT)

US 127 Snake River Bridge
US127 Snake River Bridge near Clarkston, WA
WSDOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. Preservation and Maintenance costs are shared between Washington and Idaho. The Snake River Bridge was opened to traffic in 1939 and is 1,424 feet in length. The bridge consists of steel movable truss span over the main navigational channel and concrete T-Beam approach spans. The average daily traffic is nearly 20,000.

WSDOT completed a deck repair and concrete overlay in 2006. The steel members were last painted in 2002. No preservation projects are planned over the next 10 years.

State Route 41 BNRR OC Bridge (IDOT)

State Route 41
State Route 41 Bridge over BNRR near Newport
IDOT takes the lead on identifying and administering the preservation and maintenance needs on this bridge. Preservation and Maintenance costs are shared between Washington and Idaho. The bridge was opened to traffic in 1966 and consists of steel girder spans. The bridge is 175 feet in length. The average daily traffic on is nearly 5,300. No preservation projects are planned over the next 10 years.