SR 520 W-S RAMP over I-5


+47.64210, -122.32253
47°38'32" N, 122°19'21" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SR 520 W-S RAMP over I-5
Structure number:0006470C0000000
Location:0.1 E JCT I-5
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:147.0 ft. [44.8 m]
Total length:351.1 ft. [107.0 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:31.2 ft. [9.5 m]
Vertical clearance below bridge:15.7 ft. [4.8 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:3
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 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:21,318 [as of 2012]
Truck traffic:4% 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: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 desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:89.1 tons [81.0 metric tons]
Inventory rating:52.5 tons [47.7 metric tons]
Sufficiency rating:74.3

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201574.3FairSatisfactorySatisfactoryGoodFO21318
August 201373.3FairSatisfactorySatisfactoryGoodFO21318
September 201174.4FairSatisfactorySatisfactoryGoodFO28943
August 200974.5FairSatisfactorySatisfactoryGoodFO28537
May 200771.9FairSatisfactorySatisfactoryGoodFO31644
November 200571.9FairSatisfactorySatisfactoryGoodFO31644
December 200371.9FairSatisfactorySatisfactoryGoodFO31644
December 200171.9FairSatisfactorySatisfactoryGoodFO31644
June 199970.9FairSatisfactorySatisfactoryGoodFO31644
June 199773.1FairSatisfactorySatisfactoryGoodFO31644
December 199573.8FairSatisfactorySatisfactoryGoodFO31644
May 199376.4FairSatisfactorySatisfactoryGood-27400
October 199173.8FairSatisfactorySatisfactoryGoodFO21680