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Gnat Creek Bridge

Photos 

Gnat Creek Bridge

Old photo prior to rail replacement

Photo courtesy of ODOT

Enlarge

BH Photo #385975

Map 

Street View 

Facts 

Overview
Concrete stringer bridge over Gnat Creek on US 30
Location
Clatsop County, Oregon
Status
Open to traffic
Future prospects
2008 project strengthened girders and replaced ornamental concrete rail with two tube steel rail.
History
Built 1929
Builders
- Clackamas Construction Co. of Clackamas, Oregon
- Conde B. McCullough of Redfield, North Dakota (Bridge Engineer)
Design
Continuous concrete curved stringer
Dimensions
Length of largest span: 49.9 ft.
Total length: 165.0 ft.
Deck width: 26.9 ft.
Approximate latitude, longitude
+46.16944, -123.48667   (decimal degrees)
46°10'10" N, 123°29'12" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/462431/5112989 (zone/easting/northing)
Quadrangle map:
Cathlamet
Inventory numbers
OR 00921 (Oregon Dept. of Transportation structure number)
BH 50774 (Bridgehunter.com ID)
Inspection (as of 03/2015)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 49.1 (out of 100)
Average daily traffic (as of 2014)
4,900

Update Log 

  • April 10, 2017: New photos from Mike Goff
  • January 3, 2012: Added by Nathan Holth

Sources 

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