24TH AVE over SR 520


+47.64422, -122.30203
47°38'39" N, 122°18'07" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:24TH AVE over SR 520
Structure number:000000NW0000000
Location:0.1 E JCT SR 513
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:90.9 ft. [27.7 m]
Total length:169.0 ft. [51.5 m]
Roadway width between curbs:22.6 ft. [6.9 m]
Deck width edge-to-edge:43.6 ft. [13.3 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1962
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:2
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: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,752 [as of 2009]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:76.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,974,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairGoodSatisfactoryGood475276.4
August 2015FairGoodSatisfactoryGood475273.4
July 2013FairGoodSatisfactoryGood475273.4
June 2011FairGoodSatisfactoryGood475273.4
June 2009GoodGoodGoodGood475275.4
May 2007GoodGoodGoodGood432075.5
August 2005GoodGoodGoodGood432075.5
August 2003GoodGoodGoodGood432075.5
November 2001GoodGoodGoodGood432075.5
June 1999GoodGoodGoodGood432075.5
July 1997GoodGoodGoodGood432073.4
December 1995GoodGoodGoodGood432073.6
May 1993GoodGoodGoodGood342075.7
October 1991GoodGoodGoodGood342077.7