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BNSF - Oregon Slough Bridge

Multnomah County, Oregon

Photos 

B.N.S.F. - Oregon Slough Bridge

Swing Span

Photo taken by Michael Goff in April 2011

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BH Photo #198083

Map 

Street View 

Description 

This bridge and the Columbia River main channel bridge to the north were originally built as one continuous 6,467' bridge consisting of sixteen simple through truss spans and two swing truss spans totaling 4,273' and 2,194' of steel deck plate girder spans across Hayden Island. The Hayden Island viaduct was later replaced with fill, separating the bridge into north channel and south channel sections.

Facts 

Overview
Swing span through truss bridge over Columbia River - Oregon Slough on BNSF Railway in Portland
Location
Portland, Multnomah County, Oregon
Status
Open to traffic
History
Built 1908
Builders
- American Bridge Co. of New York (Steel Fabricator)
- Byron B. Carter
- Ralph Modjeski of Bochnia, Poland (Engineer)
Railroads
- Amtrak (AMTK)
- Amtrak Cascades
- BNSF Railway (BNSF)
- Burlington Northern Railroad (BN)
- Spokane, Portland & Seattle Railway (SPS)
Design
Main span: Swing Warren through truss with sub-panels
Dimensions
Length of largest span: 335.0 ft.
Total length: 1,535.0 ft.
Approximate latitude, longitude
+45.61500, -122.70278   (decimal degrees)
45°36'54" N, 122°42'10" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/523173/5051315 (zone/easting/northing)
Quadrangle map:
Portland
Inventory number
BH 39786 (Bridgehunter.com ID)

Categories 

American Bridge Co. (1,681)
Amtrak (575)
Amtrak Cascades (25)
BNSF Railway (1,595)
Built 1908 (797)
Built during 1900s (7,748)
Burlington Northern Railroad (512)
Byron B. Carter (1)
Center Pivot Swing Span (96)
Columbia River (43)
Have street view (29,923)
Movable (3,157)
Multnomah County, Oregon (125)
Navigable waterway (2,224)
Open (41,214)
Oregon (1,271)
 Owned by railroad (13,743)
Pin-connected (5,078)
Portland, Oregon (77)
Railroad (16,676)
Ralph Modjeski (51)
Riveted (2,654)
Span length 250-500 feet (1,285)
Spokane, Portland & Seattle Railway (75)
Swing (1,592)
Through truss (17,908)
Total length 1000-2500 feet (2,024)
Truss (36,833)
Warren through truss (1,726)
Warren through truss with sub-panels (76)
Warren truss (7,095)

Update Log 

  • August 3, 2022: New photos from Patrick Gurwell
  • May 28, 2022: Updated by Paul Plassman: Added that this and the main channel bridge were once connected as one long bridge
  • February 10, 2017: New photos from Mike Garland
  • June 13, 2016: Updated by Christopher Finigan: Added categories "Pin-connected", "Riveted"
  • January 12, 2014: Updated by Luke Harden: Added category "Spokane, Portland & Seattle Railway"
  • July 31, 2013: Updated by Luke Harden: Added categories "Amtrak Cascades", "Amtrak"
  • April 27, 2011: New photos from Michael Goff
  • September 7, 2010: New Street View added by Michael Goff
  • February 9, 2009: Added by Michael Goff

Related Bridges 

Sources 

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