Share:

I 90 over INT I 15

Map

Coordinates:
+45.97995, -112.47999
45°58'48" N, 112°28'48" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 90 over INT I 15
Structure number:I00090227+04552
Location:BUTTE
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:76.1 ft. [23.2 m]
Total length:193.9 ft. [59.1 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:41.0 ft. [12.5 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2017
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
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]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,905 [as of 2017]
Truck traffic:16% 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:Equal to present minimum criteria [6]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:90.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairSatisfactorySatisfactorySatisfactory490590.9
September 2016PoorPoorSatisfactoryFair564575.9
September 2014PoorPoorSatisfactoryGood892087.9
September 2012FairFairSatisfactoryGood892089.9
October 2010FairFairSatisfactoryGood892090.0
September 2008FairSatisfactoryGoodGood876091.0
August 2006FairSatisfactoryGoodGood900091.0
June 2004GoodGoodGoodGood1043091.0
March 2002GoodGoodGoodVery Good907091.0
May 1999GoodGoodVery GoodVery Good728091.0
March 1997FairSatisfactoryVery GoodVery Good600091.0
April 1995FairSatisfactoryVery GoodVery Good600093.0
June 1993FairSatisfactoryVery GoodVery Good571093.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.387038700
Steel Protective Coatingsq. ft.2,63202,368132132
Prestressed Concrete Girder/Beamlinear ft.6996643500
Deck
Reinforced Concrete Decksq. ft.7,9336,9021,03100
Concrete Protective Coatingsq. ft.7,9337,933000
Substructure
Reinforced Concrete Columneach40220
Reinforced Concrete Abutmentlinear ft.9588520
Reinforced Concrete Pier Caplinear ft.7570500
Bearings
Movable Bearingeach1801800
Steel Protective Coatingsq. ft.1800414
Fixed Bearingeach50500
Steel Protective Coatingsq. ft.50212
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.38727111600