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SR 20 over CHEWUCH RIVER

Map

Coordinates:
+48.47728, -120.18644
48°28'38" N, 120°11'11" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 20 over CHEWUCH RIVER
Structure number:0006563A0000000
Location:30.3 E CHELAN CO
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:80.1 ft. [24.4 m]
Total length:125.0 ft. [38.1 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:36.4 ft. [11.1 m]
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:1990
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:2,855 [as of 2012]
Truck traffic:13% of total traffic
Deck condition:Poor [4 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:Basically intolerable requiring high priority of corrrective action [3]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:71.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,700,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017PoorPoorGoodGood285571.6
July 2015FairFairGoodGood285573.7
July 2013FairSatisfactoryGoodGood331374.2
July 2011FairSatisfactoryGoodGood331374.2
July 2009FairSatisfactoryGoodGood337174.1
August 2007FairSatisfactorySatisfactoryGood120078.7
July 2005FairSatisfactorySatisfactoryGood120078.7
August 2003FairSatisfactorySatisfactoryGood120078.7
August 2001FairSatisfactorySatisfactoryFair120067.4
August 1999FairSatisfactorySatisfactoryFair155167.9
July 1997FairSatisfactorySatisfactoryFair155167.9
October 1995FairSatisfactorySatisfactoryGood155171.5
October 1993FairSatisfactorySatisfactoryGood161671.5
August 1991FairSatisfactorySatisfactoryGood161679.2