Rating:
2 votes

Isthmus Slough Bridge

Photos 

Photo taken by Douglas Butler

Enlarge

BH Photo #263624

Map 

Facts 

Overview
Bascule bridge over Isthmus Slough on Coos River Highway
Location
Coos Bay, Coos County, Oregon
Status
Open to traffic
History
Built 1931, East approach rebuilt 2011
Builders
- Conde B. McCullough of Redfield, South Dakota (Bridge Engineer)
- Liesch & Tofte (Contractor)
- Robert E. Grubbs (2011 - East Approach Reconstruction Engineer)
Design
Double leaf Chicago style bascule lift
Dimensions
Length of largest span: 140.0 ft.
Total length: 1,691.0 ft.
Deck width: 27.0 ft.
Also called
Newport Lane Bridge
Approximate latitude, longitude
+43.35644, -124.19395   (decimal degrees)
43°21'23" N, 124°11'38" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/403247/4801090 (zone/easting/northing)
Quadrangle map:
Coos Bay
Average daily traffic (as of 2014)
3,000
Inventory numbers
OR 01132F (Oregon Dept. of Transportation structure number)
BH 29927 (Bridgehunter.com ID)
Inspection report (as of June 2016)
Overall condition: Poor
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 46.6 (out of 100)
View more at BridgeReports.com

Update Log 

  • December 1, 2015: New Street View added by Douglas Butler
  • December 9, 2013: New photos from Mike Goff
  • April 19, 2010: New Street View added by Michael Goff
  • July 30, 2008: New photo from Michael Goff
  • June 12, 2008: Updated by Michael Goff

Sources 

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