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IRR PIONEER PARKWA over SWINOMISH SLOUGH

Map

Coordinates:
+48.38833, -122.50167
48°23'18" N, 122°30'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IRR PIONEER PARKWA over SWINOMISH SLOUGH
Structure number:084845000000000
Location:SWIN SL @ LACONNER
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:580.1 ft. [176.8 m]
Total length:797.0 ft. [242.9 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:29.9 ft. [9.1 m]
Vertical clearance above deck:16.4 ft. [5.0 m]
Vertical clearance below bridge:72.2 ft. [22.0 m]
Owner:County Highway Agency [02]
Year built:1957
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 13.5 / HS 15 [3]
Main span material:Steel [3]
Main span design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,967 [as of 2012]
Truck traffic:3% 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:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:Navigation protection not required [1]
Scour condition:Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Sufficiency rating:56.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$24,533,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018GoodGoodGoodGood496756.8
April 2016GoodGoodGoodGood496756.4
April 2014GoodGoodGoodGood496756.4
April 2012FairGoodGoodSatisfactory496756.4
April 2010FairGoodGoodSatisfactory496756.4
April 2008FairGoodSatisfactorySatisfactory496756.4
March 2006FairGoodSatisfactorySatisfactory496756.4
May 2004FairGoodSatisfactorySatisfactory325059.2
April 2002FairSatisfactorySatisfactorySatisfactory325060.2
April 2000FairSatisfactorySatisfactoryGood325060.2
May 1998FairSatisfactoryGoodGood325062.3
June 1996FairSatisfactoryGoodGood325062.5
May 1994GoodVery GoodGoodGood81568.3
May 1992GoodVery GoodGoodGood81568.3