14/16TH AVE SE over DUWAMISH RIVER

Map

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

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]`

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

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
September 2018	Good	Very Good	Very Good	Very Good	16000	69.6
September 2016	Good	Very Good	Very Good	Very Good	15000	70.0
September 2014	Good	Very Good	Very Good	Very Good	20000	68.2

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Prestressed Concrete Girder/Beam	linear ft.	5,473	5,473	0	0	0
Deck
Reinforced Concrete Deck	sq. ft.	49,543	49,543	0	0	0
Superstructure
Steel Truss	linear ft.	249	249	0	0	0
Steel Protective Coating	sq. ft.	105,914	105,914	0	0	0
Steel Floor Beam	linear ft.	2,400	2,400	0	0	0
Steel Protective Coating	sq. ft.	102,085	102,085	0	0	0
Substructure
Reinforced Concrete Column	each	6	6	0	0	0
Reinforced Concrete Pier Wall	linear ft.	568	568	0	0	0
Reinforced Concrete Abutment	linear ft.	138	138	0	0	0
Reinforced Concrete Pile Cap/Footing	linear ft.	2	2	0	0	0
Reinforced Concrete Pier Cap	linear ft.	143	143	0	0	0
Joints
Compression Joint	linear ft.	270	0	270	0	0
Open Joint	linear ft.	185	0	185	0	0
Other Joint	linear ft.	132	0	132	0	0
Bearings
Elastomeric Bearing	each	56	56	0	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	1,941	1,941	0	0	0
Reinforced Concrete Bridge Rail	linear ft.	1,333	1,333	0	0	0