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RAMP TO EB SR 520 over ARBORETUM & UNION BAY

Map

Coordinates:
+47.64328, -122.29452
47°38'36" N, 122°17'40" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:RAMP TO EB SR 520 over ARBORETUM & UNION BAY
Structure number:0006872H0000000
Location:0.5 E JCT SR 513
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:100.1 ft. [30.5 m]
Total length:1461.0 ft. [445.3 m]
Roadway width between curbs:21.0 ft. [6.4 m]
Deck width edge-to-edge:25.6 ft. [7.8 m]
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 / HS 20 [5]
Number of main spans:15
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 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,084 [as of 2012]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:77.2 tons [70.2 metric tons]
Inventory rating:62.4 tons [56.7 metric tons]
Sufficiency rating:98.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201698.7FairSatisfactorySatisfactoryGood-3084
June 201497.7FairSatisfactorySatisfactoryGood-3084
July 201297.5FairSatisfactorySatisfactoryGood-4810
August 201095.5FairSatisfactorySatisfactoryGood-4854
July 200895.5FairSatisfactorySatisfactoryGood-4854
December 200695.5FairSatisfactorySatisfactoryGood-5105
November 200495.5FairSatisfactorySatisfactoryGood-5105
October 200296.5FairSatisfactorySatisfactoryGood-5105
December 200059.5FairSatisfactorySatisfactoryGoodFO5105
September 199859.5FairSatisfactorySatisfactoryGoodFO5105
June 199696.6FairSatisfactorySatisfactoryGood-5105
December 199496.6FairSatisfactorySatisfactoryGood-5105
April 199296.8FairSatisfactoryGoodGood-2980