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EB I-90 over LAKE WASHINGTON

Map

Coordinates:
+47.58997, -122.28731
47°35'24" N, 122°17'14" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:EB I-90 over LAKE WASHINGTON
Structure number:000000KO0000000
Location:2.3 E JCT I-5
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:214.9 ft. [65.5 m]
Total length:1064.0 ft. [324.3 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:19.4 ft. [5.9 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:Fair
Status:Open, no restriction [A]
Average daily traffic:66,003 [as of 2012]
Truck traffic:6% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:51.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$29,366,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairGoodFairGood6600351.0
May 2015FairGoodFairGood6600363.5
September 2013FairGoodFairGood6600363.5
August 2011FairGoodFairGood5742871.8
August 2009GoodGoodGoodGood5700083.9

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Closed Web/Box Girderlinear ft.244244000
Steel Girder/Beamlinear ft.1,0641,061030
Steel Protective Coatingsq. ft.14,7149,67704,380657
Steel Stringerlinear ft.7,8947,893010
Steel Protective Coatingsq. ft.109,17371,796032,5014,876
Deck
Reinforced Concrete Decksq. ft.55,32855,327001
Wearing Surfacessq. ft.55,328055,32701
Superstructure
Steel Trusslinear ft.90063402660
Steel Protective Coatingsq. ft.124,46881,855037,0555,558
Steel Archlinear ft.430430000
Steel Protective Coatingsq. ft.59,46839,108017,7042,656
Steel Secondary Cableeach1818000
Steel Floor Beamlinear ft.2,0302,024060
Steel Protective Coatingsq. ft.28,07418,46208,3581,254
Steel Pin or Pin & Hangar Assemblyeach10100
Substructure
Reinforced Concrete Columneach88000
Reinforced Concrete Abutmentlinear ft.6666000
Reinforced Concrete Pile Cap/Footinglinear ft.33000
Reinforced Concrete Pileeach66000
Reinforced Concrete Pier Caplinear ft.260252800
Joints
Strip Seal Jointlinear ft.156015600
Assembly with Sealeach5205200
Open Jointlinear ft.1,66401,66400
Bearings
Movable Bearingeach99000
Other Bearingeach1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,1282,128000