+47.64750, -122.30459
47°38'51" N, 122°18'17" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SR 513 over MONTLAKE CUT
Structure number:000000HH0000000
Location:0.2 N JCT SR 520
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:155.8 ft. [47.5 m]
Total length:344.2 ft. [104.9 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:60.0 ft. [18.3 m]
Vertical clearance above deck:17.7 ft. [5.4 m]
Vertical clearance below bridge:29.9 ft. [9.1 m]
Owner:State Highway Agency [01]
Year built:1924
Year reconstructed:1999
Historic significance:Bridge is on the National Register of Historic Places [1]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Other [9]

Latest Available Inspection: April 2016 

Status:Open, no restriction [A]
Average daily traffic:61,430 [as of 2012]
Truck traffic:3% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
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:36.6 tons [33.3 metric tons]
Inventory rating:21.8 tons [19.8 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:49.5

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201649.5Functionally obsoleteFairSatisfactorySatisfactory61430
April 201449.5Functionally obsoleteFairSatisfactorySatisfactory61430
April 201244.5Functionally obsoleteFairSatisfactorySatisfactory62444
April 201044.5Functionally obsoleteFairSatisfactorySatisfactory63074
April 200845.5Functionally obsoleteSatisfactorySatisfactorySatisfactory62885
April 200645.5Not deficientSatisfactorySatisfactorySatisfactory51283
March 200545.5Not deficientSatisfactorySatisfactorySatisfactory51283
October 200345.5Not deficientSatisfactorySatisfactorySatisfactory51283
December 200245.5Not deficientSatisfactorySatisfactorySatisfactory51283
December 200143.5Not deficientSatisfactoryFairFair51283
November 200045.5Functionally obsoleteGoodSatisfactorySatisfactory51283
September 199945.5Functionally obsoleteGoodSatisfactorySatisfactory51283
April 199843.5Functionally obsoleteGoodFairSatisfactory51283
April 199736.2Functionally obsoleteGoodFairSatisfactory51283
September 199544.9Functionally obsoleteGoodFairSatisfactory51283
September 199446.9Functionally obsoleteGoodGoodSatisfactory51283
June 199346.9Functionally obsoleteGoodGoodSatisfactory49400
March 199245.9Functionally obsoleteFairGoodSatisfactory49400