I-5 S RAMP TO 45TH over 50TH RAMP TO I-5 S


+47.66300, -122.32250
47°39'47" N, 122°19'21" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-5 S RAMP TO 45TH over 50TH RAMP TO I-5 S
Structure number:0006304B0000000
Location:1.4 N JCT SR 520
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:69.9 ft. [21.3 m]
Total length:243.1 ft. [74.1 m]
Roadway width between curbs:22.0 ft. [6.7 m]
Deck width edge-to-edge:27.2 ft. [8.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1961
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:4
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: May 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:10,019 [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:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:96.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2015GoodGoodGoodGood1001996.6
May 2013GoodGoodGoodGood1035795.5
May 2011GoodGoodGoodGood1035796.5
June 2009FairSatisfactorySatisfactoryGood969095.6
June 2007FairSatisfactorySatisfactoryGood1073195.5
September 2005FairSatisfactorySatisfactoryGood1073195.5
November 2003FairSatisfactorySatisfactoryGood1073195.5
December 2001FairSatisfactorySatisfactoryGood1073197.5
June 1999FairSatisfactorySatisfactoryGood935297.7
June 1997FairSatisfactorySatisfactoryGood935297.7
June 1995FairSatisfactorySatisfactoryGood935297.6
June 1993FairSatisfactorySatisfactoryGood895096.6
March 1991GoodGoodGoodGood895096.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Closed Web/Box Girderlinear ft.243243000
Reinforced Concrete Decksq. ft.5,3465,346000
Reinforced Concrete Columneach77000
Reinforced Concrete Abutmentlinear ft.5454000
Pourable Jointlinear ft.2200022
Open Jointlinear ft.2202200
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.486486000