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BNSF - Duwamish River Bridge

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Duwamish River Railroad Bridge

View from North

Photo taken by K. A. Erickson in April 2011

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BNSF - Duwamish River Bridge 

Written by Douglas Butler

The Strauss heel trunnion bascule which formerly use by the Northern Pacific railroad was repaired in 1928 that the operating machinery was removed, built in the machinery inside the counterweight bridge tower, the strut was transferred from the bridge tower to the bascule truss to support the counterweight and notice the framework was change in place. The span is in the better suited operation.

Facts 

Overview
Single leaf bascule bridge over Duwamish River on BNSF Railroad
Location
Seattle, King County, Washington
Status
Open to traffic
History
Built 1928
Builder
- Strauss Bascule Bridge Co. of Chicago, Illinois
Railroads
- BNSF Railway (BNSF)
- Burlington Northern Railroad (BN)
- Northern Pacific Railroad (NP)
Design
Warren through truss bascule
Dimensions
Total length: 160.0 ft.
Also called
Duwamish River Railroad Bridge
Approximate latitude, longitude
+47.57005, -122.35214   (decimal degrees)
47°34'12" N, 122°21'08" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/548727/5268718 (zone/easting/northing)
Quadrangle map:
Seattle South
Inventory number
BH 48614 (Bridgehunter.com ID)

Update Log 

  • March 30, 2017: New Street View added by Douglas Butler
  • September 16, 2016: New Street View added by Dana and Kay Klein
  • June 15, 2016: New Street View added by Douglas Butler
  • January 26, 2016: New photo from Douglas Butler
  • November 30, 2015: New Street View added by Douglas Butler
  • May 14, 2015: New photo from Douglas Butler
  • February 5, 2015: Essay added by Douglas Butler
  • October 27, 2014: New photos from Douglas Butler
  • October 25, 2014: New photos from Royce and Bobette Haley
  • October 21, 2014: New photo from Douglas Butler
  • September 4, 2014: New photos from Douglas Butler
  • July 29, 2014: New photo from Douglas Butler
  • August 22, 2013: New photos from Douglas Butler
  • August 20, 2013: New Street View added by Douglas Butler
  • August 18, 2013: New Street View added by Douglas Butler
  • April 12, 2011: Added by K. A. Erickson

Related Bridges 

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Comments 

BNSF - Duwamish River Bridge
Posted July 5, 2017, by Jim Hoffmann (jvhoffmannjr [at] gmail [dot] com)

Dear Douglas Butler:

I'm working with Pete DePoe on his memoir. He says he was thrown off of that bridge as a kid. Do you mind if I use your drawing in the book pro-bono? Naturally, you will be properly credited.

Please let me know.

BNSF - Duwamish River Bridge
Posted March 24, 2017, by Douglas Butler

This is the detail of the bridge with the operating machinery mounted on the counterweight bridge tower and struts pinned to the bascule truss

BNSF - Duwamish River Bridge
Posted March 24, 2017, by Douglas Butler

This is the second picture

BNSF - Duwamish River Bridge
Posted March 24, 2017, by Douglas Butler

This first picture is a Northern Pacific railroad Strauss Heel trunnion bascule bridge constructed in 1911 of The Railway And Engineering Review showing the operation strut pinned to the counterweight bridge tower and the machinery on the bascule span.

The second two pictures of the same bridge of the Northern Pacific railroad bridge used now used by the Burlington Northern & Santa Fe railroad repaired between the late 1920's to the 1930's with the energy changed from the span to the counterweight and the operating machinery built into the counterweight bridge tower and the strut pinned to the bascule truss.

BNSF - Duwamish River Bridge
Posted March 23, 2017, by Richard Rogala (rich [at] dimensionsui [dot] com)

My Grandfather, Richard Bearden, was the operator of that very bridge from 1929 until he retired from the Northern Pacific Railroad in 1959. I remember spending the night with him there several times, amazed by the machinery and waiting for hours for a train to come so I could watch Grandpa make the bridge go down to let the trains cross.

BNSF - Duwamish River Bridge
Posted December 30, 2015, by Douglas Butler (drawbridges [at] lycos [dot] com)

Thanks Max much appreciated I do have some on the web (drawbridges photo stream) page but I'm not from Seattle. I would love to travel there and explore some bridge and take pictures in Seattle, I can send you some of my sketch drawings of them in Seattle trough my email above. You can type in Duwamish River bridges on google or yahoo and you might come across my drawings. Thanks again.

BNSF - Duwamish River Bridge
Posted December 30, 2015, by Max (bucky8338 [at] gmail [dot] com)

Douglas Butler

drawing of the bridge are wonderful.

do you show them anywhere in the Seattle region?

thanks

Max