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

Good/Fair/Poor Condition:Fair
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]
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201576.0FairFairSatisfactorySatisfactoryFO88500
June 201276.0FairFairSatisfactoryGoodFO71407
June 201081.0FairSatisfactoryGoodGood-71407
February 200981.0FairSatisfactoryGoodGood-71407
February 200781.0FairSatisfactoryGoodGood-67800
February 200581.0FairSatisfactoryGoodSatisfactory-68300
February 200381.0GoodGoodGoodGood-70250
February 200181.0GoodGoodVery GoodVery Good-86000
February 199981.0GoodGoodVery GoodVery Good-86000
February 199781.0GoodVery GoodVery GoodVery Good-60900
February 199581.0GoodVery GoodVery GoodVery Good-54500
February 199381.0GoodGoodGoodGood-44000
February 199181.0GoodGoodGoodGood-52200