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US 20B over HENRY'S FK. SNAKE RIVER

Map

Coordinates:
+43.96440, -111.68190
43°57'52" N, 111°40'55" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 20B over HENRY'S FK. SNAKE RIVER
Structure number:000000000012730
Location:IN ST ANTHONY
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:102.0 ft. [31.1 m]
Total length:104.0 ft. [31.7 m]
Roadway width between curbs:52.2 ft. [15.9 m]
Deck width edge-to-edge:65.9 ft. [20.1 m]
Owner:State Highway Agency [01]
Year built:1965
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
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:8,700 [as of 2015]
Truck traffic:9% 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:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:76.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,272,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairSatisfactorySatisfactorySatisfactory870076.9
July 2015FairSatisfactorySatisfactorySatisfactory870076.9
July 2014FairSatisfactorySatisfactorySatisfactory870076.9
July 2012FairSatisfactorySatisfactorySatisfactory880075.9
July 2010FairSatisfactorySatisfactorySatisfactory880075.9
July 2008FairSatisfactorySatisfactorySatisfactory900074.9
July 2006FairSatisfactorySatisfactorySatisfactory980074.6
July 2004FairSatisfactorySatisfactorySatisfactory980074.6
July 2002FairSatisfactorySatisfactorySatisfactory970074.6
July 2000FairSatisfactorySatisfactorySatisfactory910074.9
July 1998FairSatisfactorySatisfactorySatisfactory910074.9
July 1996FairSatisfactorySatisfactoryGood780073.1
July 1994FairSatisfactorySatisfactoryGood780073.1
July 1992FairGoodSatisfactoryGood765073.1
July 1990FairGoodSatisfactoryGood740076.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.80125310547
Steel Protective Coatingsq. ft.10,94509,8511,0940
Deck
Reinforced Concrete Decksq. ft.6,3846,228132240
Wearing Surfacessq. ft.5,4085,406200
Substructure
Reinforced Concrete Abutmentlinear ft.131126500
Reinforced Concrete Pile Cap/Footinglinear ft.44000
Joints
Compression Jointlinear ft.2228004138
Bearings
Movable Bearingeach80008
Steel Protective Coatingsq. ft.3200032
Fixed Bearingeach80008
Steel Protective Coatingsq. ft.3200032
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.208208000
Steel Protective Coatingsq. ft.1,3541,354000