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WB I-90 over LAKE WASHINGTON

Map 

Coordinates:
+47.59028, -122.28722
47°35'25" N, 122°17'14" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:WB I-90 over LAKE WASHINGTON
Structure number:0012833B0000000
Location:2.3 E JCT I-5
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:262.2 ft. [79.9 m]
Total length:1369.2 ft. [417.3 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:63.0 ft. [19.2 m]
Vertical clearance below bridge:47.9 ft. [14.6 m]
Owner:State Highway Agency [01]
Year built:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:6
Main spans material:Steel [3]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: April 2015 

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:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
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]
Operating rating:54.5 tons [49.5 metric tons]
Inventory rating:31.7 tons [28.8 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:72.8

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201572.8Functionally obsoleteGoodSatisfactoryGood66003
August 201372.8Functionally obsoleteGoodSatisfactoryGood66003
August 201172.8Functionally obsoleteGoodGoodGood57428
August 200972.8Functionally obsoleteGoodGoodGood57000