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WB SR 520 OFF RAMP over ARBORETUM

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: 2016 

Status:Bridge closed to all traffic [K]
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

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
201697.7Not deficientGoodGoodGood3053
June 201497.7Not deficientGoodGoodGood3053
July 201297.6Not deficientGoodSatisfactoryGood4761
August 201095.5Not deficientGoodSatisfactoryGood4805
July 200895.5Not deficientGoodSatisfactoryGood5105
December 200695.5Not deficientGoodSatisfactoryGood5105
November 200482.9Not deficientGoodGoodGood5105
October 200282.9Not deficientGoodGoodGood5105
December 200082.9Not deficientGoodGoodGood5105
September 199889.2Not deficientSatisfactoryGoodGood4963
May 199690.5Not deficientSatisfactoryGoodGood4963
December 199491.5Not deficientSatisfactoryGoodGood4963
April 199281.8Not deficientSatisfactoryGoodGood2190