Share:

I-5 (HWY 001) SB over MARQUAM BRIDGE RAMP

Map 

Coordinates:
+45.50689, -122.67086
45°30'25" N, 122°40'15" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-5 (HWY 001) SB over MARQUAM BRIDGE RAMP
Structure number:08590C001 30069
Location:0.8 MI S OF BURNSIDE BR
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:177.2 ft. [54.0 m]
Total length:2358.1 ft. [718.7 m]
Roadway width between curbs:57.1 ft. [17.4 m]
Deck width edge-to-edge:62.0 ft. [18.9 m]
Vertical clearance above deck:15.4 ft. [4.7 m]
Vertical clearance below bridge:26.9 ft. [8.2 m]
Owner:State Highway Agency [01]
Year built:1966
Year reconstructed:1995
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:13
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: June 2015 

Status:Open, no restriction [A]
Average daily traffic:88,500 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Fair [5 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:76.0
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$24,360,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201576.0Functionally obsoleteFairSatisfactorySatisfactory88500
June 201276.0Functionally obsoleteFairSatisfactoryGood71407
June 201081.0Not deficientSatisfactoryGoodGood71407
February 200981.0Not deficientSatisfactoryGoodGood71407
February 200781.0Not deficientSatisfactoryGoodGood67800
February 200581.0Not deficientSatisfactoryGoodSatisfactory68300
February 200381.0Not deficientGoodGoodGood70250
February 200181.0Not deficientGoodVery GoodVery Good86000
February 199981.0Not deficientGoodVery GoodVery Good86000
February 199781.0Not deficientVery GoodVery GoodVery Good60900
February 199581.0Not deficientVery GoodVery GoodVery Good54500
February 199381.0Not deficientGoodGoodGood44000
February 199181.0Not deficientGoodGoodGood52200