I-5 over N-W RAMP


+47.55257, -122.31774
47°33'09" N, 122°19'04" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-5 over N-W RAMP
Structure number:0007734A0000000
Location:3.9 N JCT SR 900
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:107.0 ft. [32.6 m]
Total length:469.2 ft. [143.0 m]
Roadway width between curbs:76.8 ft. [23.4 m]
Deck width edge-to-edge:84.6 ft. [25.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:35°
Owner:State Highway Agency [01]
Year built:1966
Year reconstructed:1995
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:6
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:90,989 [as of 2012]
Truck traffic:9% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:55.4 tons [50.4 metric tons]
Inventory rating:32.7 tons [29.7 metric tons]
Sufficiency rating:77.6

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201677.6FairSatisfactoryGoodSatisfactory-90989
December 201477.6FairSatisfactoryGoodSatisfactory-90989
December 201277.6FairSatisfactoryGoodSatisfactory-93613
December 201077.6FairSatisfactorySatisfactorySatisfactory-95457
December 200877.6FairSatisfactorySatisfactorySatisfactory-95457
September 200677.6FairSatisfactorySatisfactorySatisfactory-212000
December 200477.6FairSatisfactorySatisfactorySatisfactory-212000
November 200277.6FairSatisfactorySatisfactorySatisfactory-212000
October 200082.6FairSatisfactorySatisfactorySatisfactory-77650
July 199882.6FairSatisfactorySatisfactorySatisfactory-77650
June 199777.6FairSatisfactorySatisfactorySatisfactory-77650
November 199567.2FairSatisfactorySatisfactorySatisfactory-77650
June 199376.0FairSatisfactorySatisfactorySatisfactory-77650
April 199176.0FairSatisfactorySatisfactorySatisfactory-75675

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Closed Web/Box Girderlinear ft.469462070
Reinforced Concrete Decksq. ft.38,45838,4312502
Wearing Surfacessq. ft.38,458038,431252
Reinforced Concrete Columneach1513020
Reinforced Concrete Abutmentlinear ft.166166000
Strip Seal Jointlinear ft.282002820
Pourable Jointlinear ft.3203200
Open Jointlinear ft.188001880
Movable Bearingeach2222000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.938935030