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I-5 (HWY 001) NB over SURFACE STREETS

Map 

Coordinates:
+45.50496, -122.67365
45°30'18" N, 122°40'25" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-5 (HWY 001) NB over SURFACE STREETS
Structure number:08591D001 30012
Location:WEST MARQUAM INTERCHANGE
Purpose:Carries highway overpass (third level) over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:178.2 ft. [54.3 m]
Total length:1748.4 ft. [532.9 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:37.1 ft. [11.3 m]
Vertical clearance above deck:16.1 ft. [4.9 m]
Vertical clearance below bridge:21.0 ft. [6.4 m]
Owner:State Highway Agency [01]
Year built:1966
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:9
Main spans material:Steel [3]
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: July 2015 

Status:Open, no restriction [A]
Average daily traffic:88,500 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:59.8 tons [54.4 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$10,025,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201579.0Functionally obsoleteSatisfactorySatisfactorySatisfactory88500
July 201374.0Functionally obsoleteSatisfactorySatisfactorySatisfactory71407
June 201074.0Functionally obsoleteGoodSatisfactorySatisfactory71407
January 201074.0Functionally obsoleteGoodSatisfactorySatisfactory71407
January 200874.0Functionally obsoleteGoodSatisfactorySatisfactory70700
January 200674.0Functionally obsoleteSatisfactoryGoodSatisfactory67800
January 200463.0Functionally obsoleteSatisfactoryGoodFair45928
January 200274.0Functionally obsoleteSatisfactoryGoodGood44590
January 200074.0Functionally obsoleteGoodGoodGood42820
January 199874.0Functionally obsoleteGoodGoodGood60900
January 199674.0Functionally obsoleteGoodGoodGood25500
January 199474.0Functionally obsoleteGoodGoodGood25500
January 199274.0Functionally obsoleteGoodGoodGood25500