Joso Bridge
Coordinates: 46 ° 35 '37 " N , 118 ° 13' 42" W.
| Joso Bridge | ||
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| use | Railway bridge | |
| Crossing of | Snake River | |
| place | Starbuck (Washington) | |
| construction | Scaffold pier viaduct | |
| overall length | 1195 meters | |
| height | 59 meters | |
| start of building | 1911 | |
| completion | 1912 | |
| opening | 1914 | |
| location | ||
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The Joso Bridge (also Joso High Bridge or Joso Viaduct ) is a single-track railway bridge over the Snake River in Washington state . The 1912 scaffolding pier viaduct is part of a Union Pacific Railroad line from Wallula to Spokane .
The bridge consists of 27 steel lattice masts, four of which are in the Snake River, and 55 bridge elements. The five longest elements over the river are lower - chord trusses (Warren truss), while the remaining 50 are solid-wall girders with overhead tracks. The light gray structure is 1,195 meters long and currently extends up to 59 meters above the water , since the river was dammed by the Lower Monumental power station . The Joso Bridge is almost 80 meters high from the highest point to the pillar foundation in the river bed.
Construction of the bridge began in 1911 under the Oregon – Washington Railroad and Navigation Company , a subsidiary of the Union Pacific since 1910. It was completed in 1912, and the line itself began operating in 1914. The Joso Bridge got its name from a nearby siding ( Joso Siding , derived from a local sheep farmer named Leon Jussaud ). The route branches off at Ayers Junction from the railway line leading to Riparia along the Snake River, climbs 0.6% and turns northeast onto the Joso Bridge, the beginning of which still follows the curve. First the bridge, which also has a gradient of 0.6%, leads over the Riparia branch route, then over the Snake River, its right bank and Washington State Route 261 . After the bridge, the route follows the Palouse River Canyon up to the Washtucna Coulee .
The southern part of the bridge is in Walla Walla County , the northern part in Franklin County , in between it touches the northwestern corner of Columbia County . A little above the Joso Bridge is the historic Snake River Bridge .
See also
Web links
- pnwrailfan.com bridge description (English)
- loc.gov photos in the Library of Congress
- Coal train on the Joso Bridge, 2010 (YouTube video)
Individual evidence
- ↑ Joso High Bridge. HistoricBridges.org, accessed May 14, 2020.
- ↑ "Joso Bridge" www.pbase.com