Rating:
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Broadway Bridge

Photos 

Broadway Bridge

Photo taken by Michael Goff on December 10, 2009

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BH Photo #150571

Map 

Street Views 

Description 

The Broadway Bridge is the first bascule span built in Portland and, at the time constructed, the longest in the United States. Its completion resulted in a dramatic shift in land values and business concentration in Portland. Those consequences profoundly influenced subsequent Willamette River bridge construction decisions. Ralph Modjeski, a premier American bridge engineer, designed the Bridge, incorporating the largest Rall-type bascule ever built, now one of the few surviving Rall mechanisms. Its Lovejoy Ramp, designed by Gustav Lindenthal in 1926-27, was removed during this recording project.

- Historic American Engineering Record

Facts 

Overview
Rall-Bascule lift bridge over Willamette River on Broadway Street in Portland
Location
Portland, Multnomah County, Oregon
Status
Open to traffic
History
Built 1912; rehabilitated 1927
Builders
- Hamilton Construction of Springfield, Oregon (2011 - Street Car Construction Contractor)
- Mowat Construction Co. of Woodinville, Washington (2004 - Deck Rehabilitation Contractor)
- Pennsylvania Steel Co. of Steelton, Pennsylvania (Steel Erector)
- Ralph Modjeski of Bochnia, Poland (Engineer)
- Strobel Engineering of Chicago, Illinois (Bascule Designer)
- Theodor Rall of Chicago, Illinois
- Union Bridge & Construction Co. of Kansas City, Missouri (Contractor)
Railroads
- Portland Streetcar
- Streetcar
Design
Double leaf Rall Bascule Lift
Dimensions
Length of largest span: 304.1 ft.
Total length: 1,742.2 ft.
Deck width: 45.6 ft.
Vertical clearance above deck: 13.1 ft.
Recognition
Posted to the National Register of Historic Places on November 14, 2012
Also called
Broadway Street Bridge
Approximate latitude, longitude
+45.53167, -122.67417   (decimal degrees)
45°31'54" N, 122°40'27" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/525442/5042066 (zone/easting/northing)
Quadrangle map:
Portland
Inventory numbers
OR 06757 (Oregon Dept. of Transportation structure number)
NRHP 12000930 (National Register of Historic Places reference number)
BH 29856 (Bridgehunter.com ID)
Inspection (as of 07/2015)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 58.8 (out of 100)
Average daily traffic (as of 2010)
29,371

Update Log 

  • February 10, 2017: New photo from Dana and Kay Klein
  • May 25, 2015: Updated by Luke: Added categories "Portland Streetcar", "Streetcar", "Railroad", "Rail-and-road"
  • October 10, 2014: New photos from Royce and Bobette Haley
  • July 10, 2014: New photos from Andrew Raker
  • September 7, 2010: New Street View added by Michael Goff
  • December 10, 2009: New photos from Michael Goff
  • April 20, 2009: Posted HAER photos
  • February 16, 2009: New photos from Mark Frazier
  • July 8, 2008: Updated by Michael Goff
  • July 7, 2008: New photos from Michael Goff

Related Bridges 

Sources 

  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • Historic Highway Bridges of Oregon - Dwight A. Smith, James B. Norman & Pieter T. Dykman, Oregon Historical Society Press, 1989
  • Mark Frazier - mfrazier404 [at] gmail [dot] com
  • HAER OR-22 - Broadway Bridge, Spanning Willamette River at Broadway Street, Portland, Multnomah County, OR
  • Bridges of Portland - Ray Bottenberg, Arcadia Publishing, 2007
  • The Portland Bridge Book - Sharon Wood Wortman, Oregon Historical Society Press, 2001
  • Douglas Butler
  • Andrew Raker
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Dana and Kay Klein