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US 20B over HENRY'S FK. SNAKE RIVER

This bridge is no longer in the current National Bridge Inventory database, and has likely been demolished or abandoned.

Map

Coordinates:
+43.97230, -111.65208
43°58'20" N, 111°39'07" 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:000000000012740
Location:1.5 N. ST ANTHONY
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:161.1 ft. [49.1 m]
Total length:242.1 ft. [73.8 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:24.9 ft. [7.6 m]
Vertical clearance above deck:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1932
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
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:Bituminous [6]

Latest Available Inspection: November 2013

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:1,200 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Serious [3 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry 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 minimum criteria [6]
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:9.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,303,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2013PoorSeriousSeriousSerious12009.5
November 2012PoorSeriousSeriousSerious12009.5
November 2011PoorSeriousSeriousSerious99011.1
November 2010PoorSeriousSeriousSerious99011.1
November 2009PoorSeriousSeriousSerious99011.1
November 2008PoorSeriousSeriousSerious99011.1
November 2007PoorPoorSeriousSerious99015.7
July 2006PoorPoorSeriousSerious99015.7
July 2005PoorPoorSeriousSerious100015.7
July 2004PoorPoorSeriousPoor100015.7
July 2003PoorFairPoorPoor100036.0
July 2002PoorFairPoorPoor100036.0
July 2000PoorFairPoorPoor93036.1
July 1999PoorFairPoorPoor93040.9
July 1998PoorFairPoorPoor93040.9
July 1997PoorFairFairPoor93046.6
July 1996PoorFairFairPoor99034.0
July 1995PoorFairFairPoor99034.0
July 1994PoorFairFairPoor99034.0
July 1993PoorFairFairPoor100034.0
July 1992PoorFairFairPoor113027.6
July 1991PoorPoorFairPoor113025.2