Burlington Northern Railroad Bridge 9.6 | |
|---|---|
 A train crossing the bridge's 467-foot (142 m) swing-span section | |
| Coordinates | 45°37′29″N 122°41′27″W / 45.6247°N 122.6908°W |
| Carries | Freight and passenger trains |
| Crosses | Columbia River |
| Locale | Portland, Oregon; Vancouver, Washington |
| Other name(s) | BNSF Railway Bridge 9.6, Columbia River Railroad Bridge (at Portland) |
| Owner | BNSF Railway |
| Characteristics | |
| Design | Swing bridge, Pratt truss |
| Total length | 2,807 feet (856 m)[1] |
| Height | 136.154 ft (41 m) [2] |
| Longest span | 467 feet (142 m)[3][4] |
| Piers in water | 9 |
| Clearance below | 33 feet (10 m) |
| Rail characteristics | |
| No. of tracks | 2 |
| History | |
| Construction start | February 8, 1906 |
| Construction end | July 24, 1908 |
| Opened | November 17, 1908 |
| Statistics | |
| Daily traffic | 63 freight, 10 Amtrak per day (as of 1998[update])[5] |
| Location | |
 | |
Burlington Northern Railroad Bridge 9.6 or BNSF Railway Bridge 9.6,[3] also known as the Columbia River Railroad Bridge,[4] is through truss railway bridge across the Columbia River, between Portland, Oregon, and Vancouver, Washington, owned and operated by BNSF Railway.[3] Built by the Spokane, Portland and Seattle Railway (SP&S) and completed in 1908, it was the first bridge of any kind to be built across the lower Columbia River,[1] preceding the first road bridge, the nearby Interstate Bridge, by a little more than eight years.
The 2,807-foot-long (856 m)[1] bridge has a swing span, which pivots on its base to allow for the passage of taller ships. The bridge carries two railroad tracks, which are used by BNSF, Union Pacific Railroad, and Amtrak. It is one of only two surviving swing-span bridges in the Portland metropolitan area, which once had several bridges of that type.[3] The other survivor is another BNSF bridge located nearby, on the same line and built at the same time, the Oregon Slough Railroad Bridge (also known as BNSF Railway Bridge 8.8).[3] The 9.6 in the name is the distance, in miles, from Portland's Union Station, the same as for Bridge 5.1 (across the Willamette River) and Bridge 8.8 on the same line.[3]
- ^ a b c "Finish Bridge Over Columbia; Steel Structure of the Spokane, Portland & Seattle Railroad [sic] Completed—Last Bolt In Yesterday". The Morning Oregonian. June 26, 1908. p. 11. Retrieved June 21, 2014.
- ^ "ASR Registration 1046454".
- ^ a b c d e f Wood Wortman, Sharon; Wortman, Ed (2006). The Portland Bridge Book (3rd ed.). Urban Adventure Press. pp. 5, 36, 119–120, 177. ISBN 0-9787365-1-6.
- ^ a b Bottenberg, Ray (2007). Bridges of Portland. Arcadia Publishing. pp. 55–64. ISBN 978-0-7385-4876-0.
- ^ HDR Engineering, Inc.; BRW, Inc. (May 1999). Commuter rail feasibility study (PDF) (Report). Southwest Washington Regional Transportation Council. Table 5: Existing and projected train traffic.