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

Multnomah County, Oregon
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B.N.S.F. - Columbia Slough Bridge

Photo taken by Michael Goff on September 27, 2010

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Facts 

Overview
Pratt through truss bridge over Columbia 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)
- Ralph Modjeski of Bochnia, Poland (Engineer)
Design
The Columbia Slough Bridge is a standard railroad Pratt through truss from the early twentieth century. The bridge is one of seven Ralph Modjeski bridges on or over the "North Bank Road"
Dimensions
Length of largest span: 160.0 ft.
Total length: 305.0 ft.
Also called
North Portland Slough Bridge
Approximate latitude, longitude
+45.60000, -122.71889   (decimal degrees)
45°36'00" N, 122°43'08" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/521923/5049644 (zone/easting/northing)
USGS topographic map
Portland
Inventory number
BH 39788 (Bridgehunter.com ID)

Categories 

American Bridge Co. (449)
Built 1908 (421)
Built during 1900s (4,243)
Burlington Northern Santa Fe Railway (464)
Have street view (9,883)
Multnomah County, Oregon (66)
Northern Pacific Railroad (60)
Open (28,300)
Oregon (689)
Owned by railroad (4,036)
 Portland, Oregon (34)
Pratt through truss (3,162)
Pratt truss (5,654)
Railroad (4,063)
Ralph Modjeski (27)
Span length 125-175 feet (2,950)
Through truss (9,202)
Total length 250-500 feet (3,367)
Truss (23,562)

Update Log 

  • September 28, 2010: New photos from Michael Goff
  • September 7, 2010: New Street View added by Michael Goff
  • February 9, 2009: Added by Michael Goff

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com

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