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RAMP TO EB SR 520 over ARBORETUM

Map

Coordinates:
+47.64190, -122.29719
47°38'31" N, 122°17'50" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:RAMP TO EB SR 520 over ARBORETUM
Structure number:0006872B0000000
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:384.9 ft. [117.3 m]
Roadway width between curbs:5.9 ft. [1.8 m]
Deck width edge-to-edge:64.0 ft. [19.5 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:5
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: April 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:3,780 [as of 2016]
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:Equal to present minimum criteria [6]
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]
Sufficiency rating:91.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$7,546,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018GoodGoodGoodGood378091.6
April 2016FairSatisfactoryGoodGood308490.4
June 2014FairSatisfactoryGoodGood308490.4
July 2012FairSatisfactoryGoodGood481090.2
August 2010FairSatisfactoryGoodGood485490.2
July 2008FairSatisfactoryGoodGood485490.2
December 2006FairSatisfactoryGoodGood496390.2
November 2004FairSatisfactoryGoodGood496390.2
October 2002GoodGoodGoodGood496390.2
December 2000GoodGoodGoodGood496390.2
September 1998FairSatisfactoryGoodGood510583.9
May 1996FairSatisfactoryGoodGood510596.6
December 1994FairSatisfactoryGoodGood510596.6
April 1992FairSatisfactoryGoodGood298077.7

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.3,9203,914060
Deck
Reinforced Concrete Decksq. ft.24,64024,640000
Substructure
Reinforced Concrete Columneach1919000
Reinforced Concrete Abutmentlinear ft.8282000
Reinforced Concrete Pier Caplinear ft.338338000
Joints
Pourable Jointlinear ft.395039500
Bearings
Elastomeric Bearingeach102102000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.385377080
Reinforced Concrete Bridge Raillinear ft.1,1551,155000