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HY 61SB TO HY 1NB over W MARQUAM BR RAMPS

Map

Coordinates:
+45.50491, -122.67442
45°30'18" N, 122°40'28" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HY 61SB TO HY 1NB over W MARQUAM BR RAMPS
Structure number:08591A061C00109
Location:W MARQUAM INTCHGE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:155.5 ft. [47.4 m]
Total length:1937.8 ft. [590.6 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:37.1 ft. [11.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1965
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:12
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: July 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:29,500 [as of 2014]
Truck traffic:5% 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: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:59.8 tons [54.4 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:96.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201596.2FairSatisfactorySatisfactorySatisfactory-29500
July 201390.4FairSatisfactorySatisfactorySatisfactory-35468
June 201090.4FairGoodSatisfactorySatisfactory-35468
January 201090.4FairGoodSatisfactorySatisfactory-35468
May 200890.4FairGoodSatisfactorySatisfactory-35468
May 200690.6FairGoodSatisfactorySatisfactory-34094
May 200490.6FairGoodSatisfactorySatisfactory-34094
March 200290.7FairSatisfactorySatisfactoryGood-33101
March 200091.0GoodGoodGoodGood-29870
March 199893.1GoodGoodGoodGood-19430
March 199693.5GoodGoodGoodGood-19430
March 199493.5GoodGoodGoodGood-19430
March 199293.5GoodGoodGoodGood-19430
March 199091.5GoodGoodGoodGood-19400

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.7,1146,600500140
Steel Protective Coatingsq. ft.128,9260122,4806,4460
Prestressed Concrete Girder/Beamlinear ft.880878200
Reinforced Concrete Girder/Beamlinear ft.152767600
Deck
Reinforced Concrete Decksq. ft.69,75067,6082,059830
Wearing Surfacessq. ft.60,69860,695030
Reinforced Concrete Top Flangesq. ft.1,4821,482000
Wearing Surfacessq. ft.1,2541,252020
Superstructure
Steel Pin or Pin & Hangar Assemblyeach2202200
Steel Protective Coatingsq. ft.2301844600
Substructure
Steel Columneach10100
Steel Protective Coatingsq. ft.4013614000
Reinforced Concrete Columneach2517530
Reinforced Concrete Abutmentlinear ft.4848000
Steel Pier Caplinear ft.78393900
Steel Protective Coatingsq. ft.2,4191,2091,21000
Reinforced Concrete Pier Caplinear ft.63348488970
Joints
Strip Seal Jointlinear ft.3103100
Compression Jointlinear ft.483345881436
Other Jointlinear ft.48002226
Bearings
Elastomeric Bearingeach3232000
Movable Bearingeach3482600
Steel Protective Coatingsq. ft.6806530
Fixed Bearingeach4437700
Steel Protective Coatingsq. ft.8808800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3,87501,9291,9460