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US 93 over BITTERROOT RIVER

Map

Coordinates:
+46.19869, -114.16836
46°11'55" N, 114°10'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 93 over BITTERROOT RIVER
Structure number:P00007043+06661
Location:3M S HAMILTON
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:83.0 ft. [25.3 m]
Total length:301.9 ft. [92.0 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:32.2 ft. [9.8 m]
Owner:State Highway Agency [01]
Year built:1949
Year reconstructed:1973
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 13.5 / HS 15 [3]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,463 [as of 2017]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:49.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018FairSatisfactoryFairSatisfactory546349.8
April 2016FairSatisfactoryFairSatisfactory461049.6
April 2014FairSatisfactoryFairSatisfactory787049.6
April 2012FairSatisfactoryFairSatisfactory787049.6
April 2010FairSatisfactoryFairSatisfactory787049.6
April 2008FairSatisfactorySatisfactoryGood583056.7
April 2006GoodGoodGoodGood549057.7
December 2005GoodGoodGoodGood637057.7
December 2003GoodGoodGoodGood462057.7
November 2001GoodGoodGoodGood462057.6
November 1999GoodGoodGoodGood509057.6
July 1997GoodGoodGoodGood543057.6
November 1993FairSatisfactoryGoodGood448058.6
September 1991GoodGoodGoodGood390058.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,20159360080
Steel Protective Coatingsq. ft.7,5065,056750750950
Deck
Reinforced Concrete Decksq. ft.9,7631,5998,154100
Concrete Protective Coatingsq. ft.9,7639,763000
Substructure
Reinforced Concrete Pier Walllinear ft.8908540
Reinforced Concrete Abutmentlinear ft.7966850
Joints
Assembly without Seal Jointlinear ft.5605600
Bearings
Movable Bearingeach1601240
Steel Protective Coatingsq. ft.1610006
Fixed Bearingeach40400
Steel Protective Coatingsq. ft.43001
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.6042921621500