HWY 105 over Skipanon River


+46.16505, -123.92097
46°09'54" N, 123°55'15" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY 105 over Skipanon River
Structure number:11226A105 00017
Location:00.2 MI E FT STEVENS SEC
Purpose:Carries highway over highway and waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:60.0 ft. [18.3 m]
Total length:671.0 ft. [204.5 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:46.9 ft. [14.3 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:State Highway Agency [01]
Year built:1978
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:15
Main spans material:Prestressed concrete [5]
Main spans design:Slab [01]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,300 [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:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
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: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 conditions; field review indicates action is required. [4]
Sufficiency rating:95.1

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018FairSatisfactorySatisfactorySatisfactory830095.1
March 2016FairSatisfactorySatisfactorySatisfactory1030094.7
March 2014FairSatisfactorySatisfactorySatisfactory860095.0
March 2012FairSatisfactorySatisfactorySatisfactory860095.0
March 2010FairSatisfactorySatisfactorySatisfactory1060094.6
March 2008FairSatisfactorySatisfactorySatisfactory1060095.1
March 2006FairSatisfactorySatisfactoryGood1030096.5
March 2004GoodGoodGoodGood1030094.5
March 2002GoodGoodGoodGood1000094.5
April 2000GoodGoodGoodGood1030094.5
March 1998GoodGoodGoodGood1030094.5
March 1996GoodGoodGoodGood1080098.4
March 1994GoodGoodGoodGood1080098.4
September 1991FairSatisfactoryGoodVery Good715098.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Decksq. ft.31,53731,3201021150
Wearing Surfacessq. ft.29,52429,524000
Reinforced Concrete Abutmentlinear ft.9493010
Prestressed Concrete Pileeach119117200
Reinforced Concrete Pier Caplinear ft.517509800
Other Jointlinear ft.8463663201600
Elastomeric Bearingeach720720000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,42201,42200