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SR 20 over BONAPARTE CR

Map

Coordinates:
+48.67217, -119.35794
48°40'20" N, 119°21'29" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 20 over BONAPARTE CR
Structure number:0015877A0000000
Location:4.6 E JCT US 97
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:66.9 ft. [20.4 m]
Total length:66.9 ft. [20.4 m]
Roadway width between curbs:33.5 ft. [10.2 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Owner:State Highway Agency [01]
Year built:2000
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: September 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:1,647 [as of 2016]
Truck traffic:12% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 the assessed or calculated scour condition. [8]
Sufficiency rating:81.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$965,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017GoodGoodGoodGood164781.6
September 2013GoodVery GoodGoodVery Good172279.0
September 2011GoodVery GoodGoodVery Good175979.0
September 2009GoodVery GoodGoodVery Good184279.0
August 2007GoodVery GoodGoodVery Good280078.0
August 2003GoodVery GoodVery GoodVery Good280078.0
August 2001GoodVery GoodVery GoodVery Good280078.0