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Interstate Highway Bridge
Looking at the northern side of the Interstate Highway Bridge from Clarkston, Washington
Coordinates	46°25′13″N 117°02′11″W / 46.42028°N 117.03639°W / 46.42028; -117.03639
Carries	US 12 (4 lanes)
Locale	Clarkston, Washington and Lewiston, Idaho
Maintained by	Washington State Department of Transportation
Characteristics
Design	Vertical Lift Truss
Location

The Interstate Highway Bridge crosses the Snake River, between Clarkston, Washington and Lewiston, Idaho. The bridge carries U.S. Route 12 (US 12) across the state line between Washington and Idaho, and is maintained by the Washington State Department of Transportation. It was built in 1939 and is 1,424 feet (434 m) long. It is nicknamed the "Blue Bridge" locally.

The bridge was the primary route between Lewiston and Clarkston, until the Southway Bridge was constructed in the 1980s.

Gallery

• A telephoto view of the Snake River dividing Lewiston, Idaho and Clarkston, Washington. The photographer is atop Lewiston Hill, looking south. The Interstate Highway Bridge is the closer of the two bridges. The Southway Bridge is in the distance.
• Looking east toward Idaho, from underneath the bridge
• Crossing westbound into Clarkston via bicycle
• Westbound vehicles entering Washington state

See also

• Lower Granite Lake

References

1. "A moveable bridge". Lewiston Morning Tribune. October 6, 2019. Retrieved December 26, 2023.
2. "Snake River Bridge". Bridge Hunter. Retrieved 2021-06-01.
3. Preston, Seth (January 6, 1990). "Lewiston Manager Backs Bryden Canyon Road". Lewiston Tribune. Retrieved December 12, 2020.
4. Alford, Nathan (August 1, 1999). "Bryden a boon or a bust?". Lewiston Tribune. Retrieved December 13, 2020.

External links

• Historic image from Asotin County Heritage Collection

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• Bridges over the Snake River
• Road bridges in Idaho
• Road bridges in Washington (state)
• Transportation in Nez Perce County, Idaho
• Transportation in Asotin County, Washington
• Bridges of the United States Numbered Highway System
• U.S. Route 12
• Bridges completed in 1939
• Western United States bridge (structure) stubs
• Washington (state) building and structure stubs
• Washington (state) transportation stubs
• Idaho building and structure stubs