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SR 529 over STEAMBOAT SLOUGH

Map

Coordinates:
+48.03489, -122.18150
48°02'06" N, 122°10'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 529 over STEAMBOAT SLOUGH
Structure number:0004373A0000000
Location:6.6 N JCT I-5
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:182.1 ft. [55.5 m]
Total length:910.1 ft. [277.4 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:34.1 ft. [10.4 m]
Vertical clearance above deck:15.1 ft. [4.6 m]
Vertical clearance below bridge:3.3 ft. [1.0 m]
Owner:State Highway Agency [01]
Year built:1954
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Movable - Swing [17]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: December 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:16,379 [as of 2016]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 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 corrrective action [3]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:54.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$11,648,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2018FairSatisfactoryFairSatisfactory1637954.4
July 2016FairSatisfactoryFairSatisfactory1494357.7
July 2014FairSatisfactoryFairSatisfactory1494357.7
July 2012FairSatisfactoryFairGood1519057.6
July 2010FairSatisfactoryFairGood1583957.5
July 2008FairSatisfactoryFairGood1583957.5
July 2006FairSatisfactoryFairGood1095558.3
September 2004FairSatisfactoryFairGood1095558.3
November 2003FairSatisfactorySatisfactoryGood1095569.6
April 2001FairSatisfactoryFairGood1095558.3
November 2000FairSatisfactoryFairGood1095558.3
May 1999FairSatisfactorySatisfactoryGood1095569.6
April 1997FairGoodSatisfactoryGood1095569.6
February 1996FairGoodSatisfactoryGood1095569.9
December 1994FairGoodSatisfactoryGood1095569.9
May 1993FairGoodSatisfactoryGood1295073.7
November 1991PoorSeriousGoodGood990070.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.165165000
Steel Protective Coatingsq. ft.1,0321,032000
Reinforced Concrete Girder/Beamlinear ft.3,5283,5130150
Steel Stringerlinear ft.3,8483,7816700
Steel Protective Coatingsq. ft.24,06924,069000
Deck
Reinforced Concrete Decksq. ft.25,48025,42523032
Wearing Surfacessq. ft.25,480022,2521283,100
Superstructure
Steel Trusslinear ft.1,3121,01402980
Steel Protective Coatingsq. ft.82,06782,067000
Steel Floor Beamlinear ft.1,1161,110060
Steel Protective Coatingsq. ft.6,9806,980000
Steel Gusset Plateeach112109030
Substructure
Reinforced Concrete Columneach4848000
Reinforced Concrete Pier Walllinear ft.266266000
Reinforced Concrete Abutmentlinear ft.6464000
Reinforced Concrete Pile Cap/Footinglinear ft.43010
Reinforced Concrete Pileeach93060
Reinforced Concrete Pier Caplinear ft.396396000
Joints
Open Jointlinear ft.7560280364112
Assembly without Seal Jointlinear ft.5605600
Bearings
Movable Bearingeach88000
Enclosed/Concealed Bearingeach11000
Fixed Bearingeach44000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,3121,308400