+46.00803, -112.63834
46°00'29" N, 112°38'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 90 over INT NISSLER
Structure number:I00090219+01691
Location:1.2M W ROCKER
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:98.1 ft. [29.9 m]
Total length:302.8 ft. [92.3 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:35°
Owner:State Highway Agency [01]
Year built:1968
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Prestressed concrete [5]
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: January 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,753 [as of 2016]
Truck traffic:15% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 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:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:96.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2018FairSatisfactoryGoodSatisfactory575396.0
January 2016FairSatisfactoryGoodSatisfactory1223096.0
February 2014FairSatisfactoryGoodGood1223096.0
February 2012FairSatisfactoryGoodGood1223096.0
February 2010GoodGoodGoodGood1186096.0
January 2008GoodGoodGoodGood1138096.0
January 2005GoodGoodVery GoodVery Good1144096.0
April 2001GoodGoodVery GoodGood993096.0
April 1997GoodGoodVery GoodGood1106098.0
February 1993GoodGoodVery GoodVery Good1000098.0
January 1991GoodGoodVery GoodVery Good821098.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.1,5121,512000
Reinforced Concrete Decksq. ft.12,2396,3272,8523,0600
Steel Columneach1501500
Steel Protective Coatingsq. ft.1,7321,471878787
Reinforced Concrete Abutmentlinear ft.1511280230
Reinforced Concrete Pier Caplinear ft.151151000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.607060700
Steel Protective Coatingsq. ft.2,4282432431,578364