US 12 over US 12;SNAKE RIVER


+46.42000, -117.03333
46°25'12" N, 117°01'60" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 12 over US 12;SNAKE RIVER
Structure number:000000000010360
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:200.1 ft. [61.0 m]
Total length:1424.0 ft. [434.0 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:48.2 ft. [14.7 m]
Vertical clearance above deck:14.4 ft. [4.4 m]
Vertical clearance below bridge:39.4 ft. [12.0 m]
Owner:State Highway Agency [01]
Year built:1939
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:M 13.5 / H 15 [2]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Movable - Lift [15]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:22,000 [as of 2015]
Truck traffic:2% 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:Basically intolerable requiring high priority of replacement [2]
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:Basically intolerable requiring high priority of corrrective action [3]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:56.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$23,923,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactorySatisfactorySatisfactory2200056.1
September 2015FairSatisfactorySatisfactorySatisfactory2000055.8
September 2013FairSatisfactorySatisfactorySatisfactory2000055.8
September 2011FairSatisfactorySatisfactorySatisfactory2100053.9
August 2010FairSatisfactorySatisfactoryGood2100053.9
July 2008FairSatisfactorySatisfactoryFair2100049.5
July 2006FairSatisfactorySatisfactoryFair1200044.2
September 2004PoorPoorSatisfactoryFair2000049.8
October 2002PoorPoorSatisfactoryFair2100049.5
April 2000PoorPoorSatisfactoryFair2051824.4
July 1998FairSatisfactoryGoodSatisfactory2300040.8
August 1996FairSatisfactoryGoodSatisfactory2300040.8
August 1995PoorPoorGoodGood2400035.5
April 1993PoorPoorGoodGood1990035.5
June 1992PoorPoorGoodGood1990035.5
July 1991PoorPoorGoodGood1990042.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.2,7722,766150
Steel Stringerlinear ft.5,6105,610000
Steel Protective Coatingsq. ft.10,75310,753000
Reinforced Concrete Decksq. ft.56,96056,960000
Steel Trusslinear ft.1,02054504750
Steel Floor Beamlinear ft.989988010
Steel Protective Coatingsq. ft.10,75310,753000
Steel Gusset Plateeach104930110
Reinforced Concrete Columneach1515000
Reinforced Concrete Pier Walllinear ft.112112000
Reinforced Concrete Abutmentlinear ft.112920200
Reinforced Concrete Pileeach3735020
Reinforced Concrete Pier Caplinear ft.7967810150
Movable Bearingeach60060
Steel Protective Coatingsq. ft.10,75310,753000
Fixed Bearingeach66000
Steel Protective Coatingsq. ft.10,75310,753000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,9241,924000
Steel Protective Coatingsq. ft.10,75310,753000
Reinforced Concrete Bridge Raillinear ft.1,8481,74801000