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14/16TH AVE SE over DUWAMISH RIVER

Map

Coordinates:
+47.52856, -122.31475
47°31'43" N, 122°18'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:14/16TH AVE SE over DUWAMISH RIVER
Structure number:088701000000000
Location:0.8 MI N OF SR-99
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:198.2 ft. [60.4 m]
Total length:921.0 ft. [280.7 m]
Roadway width between curbs:55.1 ft. [16.8 m]
Deck width edge-to-edge:70.5 ft. [21.5 m]
Vertical clearance below bridge:141.1 ft. [43.0 m]
Skew angle:27°
Owner:County Highway Agency [02]
Year built:2014
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:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:16,000 [as of 2018]
Truck traffic:13% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 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:Equal to present minimum criteria [6]
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:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:69.6
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$20,630,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018GoodVery GoodVery GoodVery Good1600069.6
September 2016GoodVery GoodVery GoodVery Good1500070.0
September 2014GoodVery GoodVery GoodVery Good2000068.2

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.5,4735,473000
Deck
Reinforced Concrete Decksq. ft.49,54349,543000
Superstructure
Steel Trusslinear ft.249249000
Steel Protective Coatingsq. ft.105,914105,914000
Steel Floor Beamlinear ft.2,4002,400000
Steel Protective Coatingsq. ft.102,085102,085000
Substructure
Reinforced Concrete Columneach66000
Reinforced Concrete Pier Walllinear ft.568568000
Reinforced Concrete Abutmentlinear ft.138138000
Reinforced Concrete Pile Cap/Footinglinear ft.22000
Reinforced Concrete Pier Caplinear ft.143143000
Joints
Compression Jointlinear ft.270027000
Open Jointlinear ft.185018500
Other Jointlinear ft.132013200
Bearings
Elastomeric Bearingeach5656000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,9411,941000
Reinforced Concrete Bridge Raillinear ft.1,3331,333000