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Balch Gulch Bridge

Thurman Street Bridge

Balch Gulch Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 30, 2018

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Key Facts

Facility Carried / Feature Intersected
Thurman Street Over Balch Gulch (MacLeay Park)
Location
Portland: Multnomah County, Oregon: United States
Structure Type
Metal 8 Panel Pin-Connected Pratt Deck Truss, Fixed and Approach Spans: Metal 3 Panel Pin-Connected Queenpost Deck Truss, Fixed
Construction Date and Builder / Engineer
1905 By Builder/Contractor: Riverside Bridge Company of Martins Ferry, Ohio and Engineer/Design: J.C.B. Lockwood of Portland, Oregon

Technical Facts

Rehabilitation Date
2014
Main Span Length
160 Feet (49 Meters)
Structure Length
400 Feet (122 Meters)
Roadway Width
27 Feet (8.23 Meters)
Spans
1 Main Span(s) and 10 Approach Span(s)
NBI Number
25B15

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Historic Bridge Inventory Sheet For This Bridge

View Rehabilitation Project Flyer and Presentation

This is a rare example of a pin-connected highway deck truss bridge in Oregon. It was sensitively rehabilitated in 2014. The bridge retains good historic integrity overall.

Shop drawings indicate that the Riverside Bridge Company of Wheeling, West Virginia fabricated the bridge. This is assumed to be the company that for most of its history was reported as being located in nearby Martins Ferry, Ohio. The bridge was built during the Lewis and Clark Exposition of 1905 which was located near the bridge.

Above: Photo of the newly completed bridge in 1904. Since this photo was taken, much of the valley was filled in during the 1930s.

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Maps and Links: Balch Gulch Bridge

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