W.B. I-90 over LAKE WASHINGTON

Map 

Facts 

Name:	W.B. I-90 over LAKE WASHINGTON
Structure number:	0012833C0000000
Location:	3.0 E JCT 1-5
Purpose:	Carries highway and pedestrian walkway over highway and waterway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	235.9 ft. [71.9 m]
Total length:	1472.2 ft. [448.7 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:	34.1 ft. [10.4 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]
Main span material:	Concrete [1]
Main span design:	Box beam or girders - Multiple [05]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Latex Concrete or similar additive [3]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	57,000 [as of 2008]
Truck traffic:	6% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
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
Estimated cost of work:	$1,097,000

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