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McKay Alto Road over WHETSTONE CREEK

Columbia County, Washington

Map

Coordinates:
+46.30308, -118.17208
46°18'11" N, 118°10'19" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:McKay Alto Road over WHETSTONE CREEK
Structure number:084598000000000
Location:0.14 N JCT 2010
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:35.1 ft. [10.7 m]
Total length:36.1 ft. [11.0 m]
Roadway width between curbs:27.2 ft. [8.3 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Owner:County Highway Agency [02]
Year built:1970
Historic significance:Historical significance is not determinable at this time [4]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Corrugated Steel [6]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:350 [as of 2014]
Truck traffic:15% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:84.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018FairSatisfactorySatisfactorySatisfactory35084.7
October 2016FairSatisfactorySatisfactorySatisfactory35085.1
October 2014FairSatisfactorySatisfactorySatisfactory35084.8
October 2012FairSatisfactorySatisfactorySatisfactory35085.5
August 2011FairSatisfactorySatisfactorySatisfactory35085.5
August 2009FairSatisfactorySatisfactorySatisfactory35085.5
August 2007FairSatisfactorySatisfactoryGood35085.5
July 2005FairSatisfactorySatisfactoryGood35085.5
June 2003FairSatisfactorySatisfactoryGood35085.5
March 2001GoodGoodGoodGood35084.2
February 1999GoodVery GoodVery GoodGood35084.2
June 1996GoodVery GoodVery GoodGood35083.9
November 1993GoodVery GoodVery GoodGood35083.9
November 1991GoodVery GoodVery GoodGood20084.6