General Information
Completion: | 3 August 1982 |
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Status: | in use |
Project Type
Function / usage: |
Road bridge |
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Structure: |
Haunched girder bridge |
Support conditions: |
for registered users |
Structure: |
Box girder bridge |
Material: |
Prestressed concrete bridge |
Plan view: |
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Material: |
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Location
Location: |
Clarkston, Asotin County, Washington, USA Lewiston, Nez Perce County, Idaho, USA |
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Crosses: |
|
Coordinates: | 46° 23' 44.02" N 117° 2' 25.39" W |
Technical Information
Dimensions
main span | 185.9 m | |
total length | 574.91 m | |
deck width | 16.4 m |
Materials
superstructure |
prestressed concrete
|
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piers |
reinforced concrete
|
abutments |
reinforced concrete
|
Excerpt from Wikipedia
The Southway Bridge is a highway bridge spanning the Snake River between Clarkston, Washington, and Lewiston, Idaho. It connects Fleshman Way in Clarkston with Bryden Canyon Road in Lewiston, and provides residents of the Lewiston Orchards with access to State Route 129, as well as providing Clarkston residents with access to the Lewiston–Nez Perce County Airport. The bridge was opened to traffic on August 3, 1982, at a cost of $21 million, after several delays due to repairs. The Bryden County Road project linking the bridge to the Lewiston Orchards was completed in 1999.
The bridge was built to supplement the Interstate Highway Bridge (nicknamed the "Blue Bridge") to the north, which was sometimes closed to traffic while the bridge was raised to allow large boats to cross underneath.
Funding
A bill to fund the bridge (titled " S. 3563. A bill to authorize the construction of a highway bridge across the Snake River between Clarkston, Washington and Lewiston, Idaho") was introduced in June 1974 by Senators Warren Magnuson, Henry M. Jackson, Frank Church. and James McClure. In the senators' testimony, they cited the inadequacy of the Interstate Highway Bridge for the modern vehicular traffic of the time, and shared concerns about the creation of the new reservoir in the coming years (created by the Lower Granite Dam) which would result in traffic delays due to increased boat traffic under the bridge requiring the raising of the 1939 bridge.
The Lower Granite Dam was completed in 1975, creating a reservoir (Lower Granite Lake) that extended through the Lewiston–Clarkston metropolitan area, raising the surfaces of the Snake River and Clearwater River to 741 feet (226 meters) above sea level.
Text imported from Wikipedia article "Southway Bridge" and modified on November 15, 2021 according to the CC-BY-SA 4.0 International license.
Participants
Currently there is no information available about persons or companies having participated in this project.
Relevant Web Sites
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data sheet - Structure-ID
20081842 - Published on:
11/11/2021 - Last updated on:
11/11/2021