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Jacob Conser Bridge

Jacob Conser Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: September 2, 2018

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Key Facts

Facility Carried / Feature Intersected
OR-164 (OR-99E Business) Over Santiam River
Location
Jefferson: Marion County, Oregon and Linn County, Oregon: United States
Structure Type
Concrete Rainbow Through Arch, Fixed and Approach Spans: Concrete Curved T-Beam, Fixed
Construction Date and Builder / Engineer
1933 By Builder/Contractor: Clackamas Construction Company of Clackamas, Oregon and Engineer/Design: Conde Balcom McCullough (Oregon State Highway Commission)

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
200 Feet (61 Meters)
Structure Length
802 Feet (244 Meters)
Roadway Width
24 Feet (7.32 Meters)
Spans
3 Main Span(s) and 4 Approach Span(s)
NBI Number
1582

Historic Significance Rating (HSR)
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Bridge Documentation

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

View Historic American Engineering Record (HAER) Documentation For This Bridge

HAER Data Pages, PDF

View Historic Bridge Inventory Sheet For This Bridge

This is an impressive multi-span example of a rainbow arch bridge, and was designed by noted engineer Conde McCullough. It is a traditional arch bridge, not a tied arch, making it different from some of Oregon's other rainbow arch bridges. It includes ornamental pillars at each end and extensive architectural detailing on the structure itself, this attention to beauty being typical for McCullough-designed bridges. This bridge is next to a railroad truss bridge.

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Photo Galleries and Videos: Jacob Conser Bridge

 
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A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
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Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Jacob Conser Bridge

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