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SR 20 over O'BRIEN CREEK

Ferry County, Washington

Map

Coordinates:
+48.59839, -118.64978
48°35'54" N, 118°38'59" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 20 over O'BRIEN CREEK
Structure number:0016144A0000000
Location:4.1 E JCT SR 21
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:20.0 ft. [6.1 m]
Total length:22.0 ft. [6.7 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Skew angle:6°
Owner:State Highway Agency [01]
Year built:2002
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Main span material:Prestressed concrete [5]
Main span design:Slab [01]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:951 [as of 2016]
Truck traffic:22% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
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 foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:86.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$282,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018GoodVery GoodVery GoodGood95186.9
June 2016GoodVery GoodVery GoodGood87381.4
June 2014GoodVery GoodGoodGood87381.4
August 2010GoodVery GoodVery GoodVery Good87981.3
September 2006GoodVery GoodVery GoodVery Good85081.6
November 2002GoodVery GoodVery GoodVery Good85079.0