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WB SR 520 OFF RAMP over ARBORETUM

This bridge is no longer in the current National Bridge Inventory database, and has likely been demolished or abandoned.

Map 

Coordinates:
+47.64427, -122.30439
47°38'39" N, 122°18'16" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:WB SR 520 OFF RAMP over ARBORETUM
Structure number:0006872D0000000
Location:0.4 E JCT SR 513
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:100.1 ft. [30.5 m]
Total length:366.2 ft. [111.6 m]
Roadway width between curbs:58.1 ft. [17.7 m]
Deck width edge-to-edge:63.0 ft. [19.2 m]
Skew angle:47°
Owner:State Highway Agency [01]
Year built:1963
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2014 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:3,053 [as of 2012]
Truck traffic:5% 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:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:59.4 tons [54.0 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:97.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$10,650,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201497.7GoodGoodGoodGood-3053
July 201297.6FairGoodSatisfactoryGood-4761
August 201095.5FairGoodSatisfactoryGood-4805
July 200895.5FairGoodSatisfactoryGood-5105
December 200695.5FairGoodSatisfactoryGood-5105
November 200482.9GoodGoodGoodGood-5105
October 200282.9GoodGoodGoodGood-5105
December 200082.9GoodGoodGoodGood-5105
September 199889.2FairSatisfactoryGoodGood-4963
May 199690.5FairSatisfactoryGoodGood-4963
December 199491.5FairSatisfactoryGoodGood-4963
April 199281.8FairSatisfactoryGoodGood-2190