Bridgehunter.com | Molalla River Bridge

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Molalla River Bridge

from east

Photo taken by Michael Goff on February 27, 2009

Overview: Warren deck truss bridge over Molalla River on Northbound OR-99 E
Location: Canby, Clackamas County, Oregon
Status: Open to traffic
History: Built 1936, Made One-Way in 1963
Builder: - Conde B. McCullough of Redfield, North Dakota (Bridge Engineer)
Design: The Molalla River Bridge is a three span Warren deck truss with three parallel truss lines and perpendicular outward truss members. These outward members allowed for a wider deck while keeping a narrower compact truss. The bridge originally carried two-way traffic but a second bridge was built parallel and to the west in 1963, which allowed the 1936 bridge to carry only northbound traffic.
Dimensions: Length of largest span: 81.3 ft.
Total length: 571.9 ft.
Deck width: 26.0 ft.
Approximate latitude, longitude: +45.25527, -122.70770 (decimal degrees)
45°15'19" N, 122°42'28" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/522935/5011349 (zone/easting/northing)
Elevation: 120.00 ft. above sea level
USGS topographic map: Canby
Inventory numbers: OR 02061 (Oregon Dept. of Transportation structure number)
BH 29881 (Bridgehunter.com ID)
Inspection (as of 08/2011): Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 16.5 (out of 100)
Average daily traffic (as of 2010): 13,420