RAMP 45TH TO I-5 N over RAMP NB I-5 TO 50TH


+47.66250, -122.32114
47°39'45" N, 122°19'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:RAMP 45TH TO I-5 N over RAMP NB I-5 TO 50TH
Structure number:0006304A0000000
Location:1.4 N JCT SR 520
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:38.1 ft. [11.6 m]
Total length:44.0 ft. [13.4 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:29.5 ft. [9.0 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:47°
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]
Main span material:Concrete [1]
Main span design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: December 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:10,691 [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:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
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:78.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$528,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2018GoodGoodGoodGood1069178.1
December 2014GoodGoodGoodGood1035679.1
December 2010GoodGoodGoodGood1021178.2
December 2006GoodGoodGoodGood1021178.2
October 2002GoodGoodGoodGood1055178.1
May 1998GoodGoodGoodGood956798.7
May 1996GoodGoodGoodGood956798.6
December 1994GoodGoodGoodGood956798.6
March 1992FairSatisfactorySatisfactoryGood914097.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Top Flangesq. ft.1,1441,140202
Reinforced Concrete Abutmentlinear ft.9090000
Pourable Jointlinear ft.7607600
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.8888000
Reinforced Concrete Slabsq. ft.1,1441,142020