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SB SR 16 over TACOMA NARROWS

Map

Coordinates:
+47.26403, -122.54669
47°15'51" N, 122°32'48" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SB SR 16 over TACOMA NARROWS
Structure number:0016441A0000000
Location:5.1 N JCT I-5
Purpose:Carries highway and pedestrian walkway over railroad and waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Tolls:Yes [1]
Length of largest span:2800.0 ft. [853.4 m]
Total length:5570.2 ft. [1697.7 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:67.3 ft. [20.5 m]
Vertical clearance below bridge:177.2 ft. [54.0 m]
Owner:State Toll Authority [31]
Year built:2007
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Suspension [13]
Deck type:Steel plate (includes orthotropic) [5]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:41,688 [as of 2016]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Equal to present desirable criteria [8]
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:89.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$129,224,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018GoodGoodGoodGood4168889.0
August 2016GoodGoodGoodGood3867089.3
August 2014GoodGoodGoodGood3867089.3
August 2012GoodVery GoodVery GoodVery Good3934789.2
August 2010GoodVery GoodVery GoodVery Good4800088.4
August 2008GoodVery GoodVery GoodVery Good4800088.4
September 2007GoodVery GoodVery GoodVery Good4800069.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,5881,588000
Deck
Reinforced Concrete Decksq. ft.9,9369,936000
Wearing Surfacessq. ft.9,93609,93600
Superstructure
Steel Trusslinear ft.10,80010,800000
Steel Protective Coatingsq. ft.1,593,8041,593,2153360253
Steel Main Cablelinear ft.22000
Steel Secondary Cableeach536536000
Steel Floor Beamlinear ft.20,32520,325000
Steel Protective Coatingsq. ft.299,945299,83463048
Substructure
Reinforced Concrete Columneach44000
Reinforced Concrete Abutmentlinear ft.160160000
Reinforced Concrete Pile Cap/Footinglinear ft.22000
Deck
Corrugated or Orthotropic Decksq. ft.356,400356,400000
Wearing Surfacessq. ft.302,4000302,40000
Joints
Pourable Jointlinear ft.112011200
Compression Jointlinear ft.136013600
Assembly with Sealeach136001360
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.10,80010,800000