I 15 over INT ROCKER


+46.00659, -112.61109
46°00'24" N, 112°36'40" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 15 over INT ROCKER
Structure number:I00015122+04231
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:44.9 ft. [13.7 m]
Total length:118.1 ft. [36.0 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:40.7 ft. [12.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
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:3
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: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,948 [as of 2016]
Truck traffic:19% 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 minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:95.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairSatisfactoryGoodSatisfactory494895.0
May 2015GoodGoodGoodGood1571094.0
May 2013GoodGoodGoodGood1571094.0
May 2011GoodGoodGoodGood1571094.0
May 2009GoodGoodGoodGood1420094.0
April 2007GoodGoodGoodVery Good1566096.0
December 2004GoodGoodGoodVery Good1580096.0
March 2001FairSatisfactoryGoodVery Good1161096.0
March 1997FairSatisfactoryGoodVery Good1227096.0
February 1993FairSatisfactoryGoodVery Good1249094.0
August 1991FairSatisfactoryGoodVery Good1117094.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.591591000
Reinforced Concrete Decksq. ft.4,8014,50329800
Reinforced Concrete Columneach44000
Reinforced Concrete Abutmentlinear ft.75621300
Fixed Bearingeach2002000
Steel Protective Coatingsq. ft.2020000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.236023600
Steel Protective Coatingsq. ft.7586820076