+46.17719, -123.37711
46°10'38" N, 123°22'38" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 409 over GARDEN SLOUGH
Structure number:0012242A0000000
Location:1.6 N FERRY DOCK
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:41.0 ft. [12.5 m]
Total length:118.1 ft. [36.0 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:36.4 ft. [11.1 m]
Owner:State Highway Agency [01]
Year built:1982
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:867 [as of 2012]
Truck traffic:10% 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: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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:98.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2015GoodGoodGoodGood86798.8
October 2011GoodGoodGoodGood107495.5
October 2009GoodGoodGoodGood119895.5
August 2007GoodGoodGoodGood60597.6
November 2005FairGoodGoodSatisfactory60596.6
September 2003FairGoodGoodSatisfactory60596.6
July 2001FairGoodGoodSatisfactory60596.6
August 1999FairGoodGoodSatisfactory60597.6
July 1997FairGoodGoodSatisfactory60597.6
November 1995FairGoodGoodSatisfactory60589.7
March 1993GoodVery GoodGoodGood240097.4
November 1991GoodVery GoodVery GoodGood106098.8