+46.17371, -111.50521
46°10'25" N, 111°30'19" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:S 285 over TOSTON CANAL
Structure number:S00285002+09001
Location:2M W TOSTON
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:13.1 ft. [4.0 m]
Total length:29.9 ft. [9.1 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:26.2 ft. [8.0 m]
Owner:State Highway Agency [01]
Year built:1948
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Wood or timber [7]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:290 [as of 2017]
Truck traffic:1% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 the assessed or calculated scour condition. [8]
Sufficiency rating:70.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairSatisfactorySatisfactoryFair29070.0
August 2016FairSatisfactorySatisfactoryFair25074.7
August 2014FairSatisfactoryGoodSatisfactory39081.9
August 2012FairSatisfactoryGoodSatisfactory39081.9
August 2010FairGoodGoodSatisfactory39082.9
August 2008FairGoodGoodSatisfactory40082.8
August 2006FairVery GoodGoodSatisfactory24087.8
July 2004FairVery GoodGoodSatisfactory32083.0
July 2002FairVery GoodGoodSatisfactory33082.0
March 2000FairVery GoodGoodSatisfactory26082.2
March 1998FairVery GoodGoodSatisfactory56080.4
March 1996FairVery GoodGoodSatisfactory26080.2
April 1994FairGoodGoodSatisfactory32079.5
April 1992FairGoodGoodSatisfactory28086.0
February 1990FairSatisfactorySatisfactorySatisfactory25091.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Timber Girder/Beamlinear ft.4794176200
Reinforced Concrete Abutmentlinear ft.723128130
Timber Pileeach40310
Timber Pier Caplinear ft.5204930
Timber Decksq. ft.78676212120
Wearing Surfacessq. ft.7867070790
Bridge Rail
Timber Bridge Raillinear ft.5905180