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Molalla River Bridge

Clackamas County, Oregon

Photos 

Molalla River Bridge

from east

Photo taken by Michael Goff on February 27, 2009

Enlarge

BH Photo #134694

Map 

Street View 

Facts 

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, South 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)
Quadrangle map:
Canby
Elevation
120.00 ft. above sea level
Average daily traffic (as of 2017)
11,900
Inventory numbers
OR 02061 (Oregon Dept. of Transportation structure number)
BH 29881 (Bridgehunter.com ID)
Inspection report (as of November 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 16.5 (out of 100)
View more at BridgeReports.com

Categories 

Built 1936 (1,213)
Built during 1930s (12,245)
Canby, Oregon (5)
Clackamas County, Oregon (76)
Concrete balustrade (891)
Conde B. McCullough (130)
Deck truss (1,973)
Have street view (29,853)
OR 99 (26)
Open (41,199)
 Oregon (1,268)
Owned by state (16,635)
Span length 75-100 feet (6,731)
Structurally deficient (12,761)
Total length 500-1000 feet (3,132)
Truss (36,693)
US 99 (76)
Warren deck truss (681)
Warren truss (7,089)

Update Log 

  • June 18, 2013: New photos from Mike Goff
  • April 4, 2013: New Street View added by Mike Goff
  • March 2, 2009: Updated by Michael Goff: Added Builder, GPS, Design Info.

Sources 

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

Comments 

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