HWY 131 over Trask River


+45.45621, -123.85979
45°27'22" N, 123°51'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY 131 over Trask River
Structure number:05640A131 00833
Location:00.2 MILE W TILLAMOOK
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:100.4 ft. [30.6 m]
Total length:333.3 ft. [101.6 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:35.4 ft. [10.8 m]
Owner:State Highway Agency [01]
Year built:1948
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,100 [as of 2017]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry 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 is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:36.4
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$1,708,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018FairSatisfactorySatisfactoryFair510036.4
May 2017FairFairSatisfactorySatisfactory510045.4
May 2015FairFairSatisfactorySatisfactory570045.4
May 2013FairFairSatisfactorySatisfactory520045.4
May 2011FairFairSatisfactorySatisfactory520045.4
April 2009FairFairSatisfactorySatisfactory480046.4
April 2008FairFairFairFair488936.4
April 2007FairFairFairFair470036.4
March 2005PoorSatisfactoryFairPoor470021.2
April 2003FairSatisfactorySatisfactoryFair450037.2
April 2002FairSatisfactorySatisfactoryFair450037.2
April 2000FairSatisfactorySatisfactoryGood460047.2
April 1998GoodGoodGoodGood450047.2
April 1996GoodGoodGoodGood480042.4
April 1994GoodGoodGoodGood480042.4
August 1992GoodGoodGoodGood325047.3
April 1990GoodGoodGoodGood325047.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Stringerlinear ft.2001670330
Steel Protective Coatingsq. ft.324324000
Reinforced Concrete Stringerlinear ft.4644521020
Steel Trusslinear ft.2008519960
Steel Protective Coatingsq. ft.5,9625,962000
Steel Floor Beamlinear ft.520241248310
Steel Protective Coatingsq. ft.3,2762,77450200
Steel Gusset Plateeach643310210
Steel Protective Coatingsq. ft.672672000
Reinforced Concrete Columneach62400
Timber Columneach20200
Reinforced Concrete Abutmentlinear ft.7167310
Reinforced Concrete Pile Cap/Footinglinear ft.1128611150
Steel Pileeach20200
Steel Protective Coatingsq. ft.9100910
Timber Pileeach51321900
Reinforced Concrete Pier Caplinear ft.42426315560
Compression Jointlinear ft.2402400
Other Jointlinear ft.108108000
Movable Bearingeach20020
Steel Protective Coatingsq. ft.1414000
Fixed Bearingeach20020
Steel Protective Coatingsq. ft.1414000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6666056100
Reinforced Concrete Slabsq. ft.12,43011,8991923390
Wearing Surfacessq. ft.8,6588,658000