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EB I-90 over LAKE WASHINGTON

Map

Coordinates:
+47.58926, -122.25577
47°35'21" N, 122°15'21" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:EB I-90 over LAKE WASHINGTON
Structure number:000000KP0000000
Location:3.8 E JCT I-5
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:227.0 ft. [69.2 m]
Total length:890.1 ft. [271.3 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:55.1 ft. [16.8 m]
Vertical clearance above deck:20.7 ft. [6.3 m]
Vertical clearance below bridge:288.7 ft. [88.0 m]
Owner:State Highway Agency [01]
Year built:1940
Year reconstructed:1992
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Steel [3]
Main span design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:65,990 [as of 2015]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:66.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$15,984,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017GoodGoodGoodGood6599066.0
May 2015GoodGoodGoodGood6600383.4
September 2013GoodGoodGoodGood6600383.4
August 2011GoodGoodGoodGood5742884.2
August 2009GoodGoodGoodGood5700084.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.5244740500
Steel Girder/Beamlinear ft.1,1181,118000
Steel Protective Coatingsq. ft.14,6539,69904,87975
Steel Stringerlinear ft.1,5051,503020
Steel Protective Coatingsq. ft.19,72513,05706,568100
Deck
Reinforced Concrete Decksq. ft.45,08045,0700010
Wearing Surfacessq. ft.45,080045,08000
Superstructure
Steel Archlinear ft.430430000
Steel Protective Coatingsq. ft.56,35837,307018,767284
Steel Secondary Cableeach1817010
Steel Floor Beamlinear ft.638631070
Steel Protective Coatingsq. ft.8,3625,53502,78443
Steel Pin or Pin & Hangar Assemblyeach11000
Substructure
Reinforced Concrete Columneach22000
Reinforced Concrete Abutmentlinear ft.8181000
Reinforced Concrete Pile Cap/Footinglinear ft.33000
Reinforced Concrete Pileeach66000
Reinforced Concrete Pier Caplinear ft.100100000
Joints
Strip Seal Jointlinear ft.184018400
Assembly with Sealeach5205200
Open Jointlinear ft.468046800
Bearings
Movable Bearingeach77000
Other Bearingeach44000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,1282,128000