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SH 55 over SNAKE RIVER(MARSING BR)

Map

Coordinates:
+43.54799, -116.80135
43°32'53" N, 116°48'05" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SH 55 over SNAKE RIVER(MARSING BR)
Structure number:000000000014670
Location:NEAR MARSING ECL
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:64.0 ft. [19.5 m]
Total length:774.0 ft. [235.9 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:38.1 ft. [11.6 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1955
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 13.5 / HS 15 [3]
Number of main spans:12
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:6,200 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
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 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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:30.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$12,230,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018PoorPoorSatisfactoryPoor620030.8
March 2017PoorPoorSatisfactoryPoor600030.8
March 2016PoorPoorSatisfactoryPoor600030.8
March 2015PoorFairSatisfactoryPoor600032.8
March 2014PoorFairSatisfactoryPoor600032.8
March 2013PoorSatisfactorySatisfactorySerious580011.0
March 2012PoorSatisfactorySatisfactorySerious580011.0
March 2011PoorSatisfactorySatisfactorySerious630011.0
March 2010PoorSatisfactorySatisfactorySerious630011.0
March 2009PoorGoodSatisfactorySerious630011.0
March 2008PoorGoodSatisfactorySerious630011.0
March 2007FairGoodSatisfactoryFair620044.0
February 2006FairGoodSatisfactoryFair560044.0
February 2005FairGoodSatisfactoryFair560044.0
February 2004FairSatisfactorySatisfactoryFair560044.0
February 2002FairSatisfactorySatisfactoryFair560044.0
February 2000FairSatisfactorySatisfactoryFair540044.0
February 1998FairGoodSatisfactoryFair540044.0
September 1996FairGoodSatisfactoryFair520044.0
September 1994FairGoodSatisfactoryFair520044.0
September 1992FairGoodSatisfactoryFair341047.1
September 1991FairGoodSatisfactoryFair341047.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.3,8713,596195800
Steel Protective Coatingsq. ft.44,866036,0668,000800
Deck
Reinforced Concrete Decksq. ft.29,407013,60715,8000
Substructure
Reinforced Concrete Columneach121001210
Reinforced Concrete Abutmentlinear ft.75601500
Steel Pileeach9900990
Reinforced Concrete Pier Caplinear ft.3843147000
Joints
Strip Seal Jointlinear ft.1320428010
Pourable Jointlinear ft.3838000
Compression Jointlinear ft.1910900
Bearings
Movable Bearingeach4000400
Steel Protective Coatingsq. ft.8000080
Fixed Bearingeach4000400
Steel Protective Coatingsq. ft.8000800
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,5494491,0001000
Steel Protective Coatingsq. ft.9,314008,3001,014