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SW SPOKANE ST over DUWAMISH RIVER W WATERWY

Map

Coordinates:
+47.57140, -122.35479
47°34'17" N, 122°21'17" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:SW SPOKANE ST over DUWAMISH RIVER W WATERWY
Structure number:085302000000000
Location:1200 SW Spokane St
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:589.9 ft. [179.8 m]
Total length:1340.0 ft. [408.4 m]
Roadway width between curbs:100.1 ft. [30.5 m]
Deck width edge-to-edge:106.0 ft. [32.3 m]
Vertical clearance below bridge:140.1 ft. [42.7 m]
Skew angle:99°
Owner:City or Municipal Highway Agency [04]
Year built:1983
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:107,300 [as of 2014]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 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:Superior to present desirable criteria [9]
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:63.8 tons [58.0 metric tons]
Inventory rating:38.9 tons [35.4 metric tons]
Sufficiency rating:69.0
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$57,888,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201769.0FairSatisfactoryFairGood-107300
June 201569.0FairSatisfactoryFairGood-160900
June 201369.0FairVery GoodFairVery Good-160900
August 201280.0GoodVery GoodGoodVery Good-148620
May 201180.0GoodVery GoodGoodVery Good-148620
October 200980.0GoodVery GoodGoodVery Good-148620
August 200880.0GoodVery GoodGoodVery Good-123500
August 200680.0GoodVery GoodGoodVery Good-123500
July 200480.0GoodVery GoodGoodVery Good-123500
September 200380.0GoodVery GoodGoodVery Good-111400
November 200280.0GoodVery GoodGoodVery Good-111400
August 199980.0GoodVery GoodGoodVery Good-111400
October 199780.0GoodVery GoodGoodVery Good-99700
July 199580.0GoodVery GoodGoodVery Good-99700
October 199280.0GoodVery GoodGoodVery Good-99700
July 199180.0GoodVery GoodGoodVery Good-92000