Crooked River Railroad Bridge
Coordinates: 44 ° 23 '28 " N , 121 ° 11' 46" W.
| Crooked River Railroad Bridge | ||
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| use | Railway bridge | |
| Crossing of | Crooked River | |
| place | Terrebonne , Oregon | |
| construction | Truss bridge | |
| overall length | 140 m | |
| Longest span | 104 m | |
| opening | 1911 | |
| planner | Ralph Modjeski | |
| location | ||
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The Crooked River Railroad Bridge is a single-track railway bridge over the Crooked River north of Terrebonne in the state of Oregon in the USA . The bridge was built in 1911 as part of the Oregon Trunk Railway , which became part of the Spokane, Portland and Seattle Railway . This railway company was later merged into the BNSF Railway , which now operates the bridge for rail freight traffic on the route between Wishram , Washington and Bend , Oregon.
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The truss bridge built in 1911 was designed by Ralph Modjeski . As a design he chose a two-hinged arch bridge made of steel , which is stiffened by the framework to form a spandrel groove and which leads the tracks on the top. This arch bridge section has a span of 103.6 m and is supplemented on both sides by an 18.3 m long girder bridge . The 13 inner half-timbered fields have a height of 22 m in the outer part of the bridge and 3.7 m in the middle. The entire framework has a width of 5.5 m at the top and widens at the arch in the middle to 6.1 m and at the end up to 9.1 m.
The bridge spans a 100 meter deep canyon in Peter Skene Ogden State Park with two other bridges . Upstream follow the old and new bridges of US Highway 97 with the Crooked River High Bridge (1926) and the Rex T. Barber Veterans Memorial Bridge (2000) .
literature
- Bridge Construction on the Oregon Trunk Railway. In: Railway Age Gazette. , Vol. 52, No. 13, 1912, pp. 756-759.
- The Crooked River Arch Bridge. In: Railway Age Gazette. , Vol. 54, No. 9, 1913, pp. 394-396.
Web links
- Sheila G. Miller: Crooked River bridges documentary. In: The Bulletin. January 30, 2011.
Individual evidence
- ^ The History of BNSF: A Legacy for the 21st Century. BNSF Railway Company, pp. 40-44. Retrieved July 22, 2017.
- ↑ The Crooked River Arch Bridge. In: Railway Age Gazette. , Vol. 54, No. 9, 1913, pp. 394-396.