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US 20 over THREE MILE CREEK

Map

Coordinates:
+43.34222, -114.88694
43°20'32" N, 114°53'13" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 20 over THREE MILE CREEK
Structure number:000000000015015
Location:4.8 W. FAIRFIELD
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:15.1 ft. [4.6 m]
Total length:30.8 ft. [9.4 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:42.0 ft. [12.8 m]
Owner:State Highway Agency [01]
Year built:1969
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,800 [as of 2015]
Truck traffic:13% 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: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: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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:95.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$545,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairSatisfactorySatisfactorySatisfactory180095.1
July 2013FairSatisfactorySatisfactorySatisfactory160081.9
July 2012FairSatisfactorySatisfactorySatisfactory160081.9
July 2011FairSatisfactorySatisfactorySatisfactory160081.9
July 2010FairSatisfactorySatisfactorySatisfactory160081.9
July 2009FairSatisfactorySatisfactorySatisfactory150082.7
October 2008FairSatisfactorySatisfactorySatisfactory150079.8
October 2007FairSatisfactorySatisfactorySatisfactory120082.7
October 2005FairSatisfactorySatisfactorySatisfactory120081.8
October 2003FairSatisfactorySatisfactorySatisfactory120081.8
October 2001FairSatisfactorySatisfactorySatisfactory120081.8
October 1999FairGoodGoodFair160067.0
October 1997FairGoodGoodSatisfactory160078.0
October 1995GoodGoodGoodGood140080.6
October 1993GoodGoodGoodGood113082.6
October 1992GoodGoodGoodGood113082.6
October 1990GoodGoodGoodGood113082.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Substructure
Reinforced Concrete Pier Walllinear ft.4338500
Reinforced Concrete Abutmentlinear ft.85701500
Reinforced Concrete Pile Cap/Footinglinear ft.2002000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.6666000
Steel Protective Coatingsq. ft.280280000
Deck
Reinforced Concrete Slabsq. ft.1,3891,3246500