I 15 over INT ROCKER


+46.00686, -112.61103
46°00'25" 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+04232
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:45.9 ft. [14.0 m]
Total length:118.1 ft. [36.0 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:40.4 ft. [12.3 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:9,673 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 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:96.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairSatisfactorySatisfactoryGood967396.0
May 2015FairSatisfactorySatisfactoryGood1571094.0
May 2013FairSatisfactorySatisfactoryGood1571094.0
May 2011FairSatisfactorySatisfactoryGood1571094.0
May 2009FairSatisfactorySatisfactoryGood1420094.0
April 2007FairSatisfactoryFairVery Good1566085.0
March 2005FairSatisfactoryFairVery Good1686085.0
June 2003FairSatisfactoryFairVery Good1161085.0
March 2001FairSatisfactoryFairVery Good1161085.0
January 1999FairSatisfactoryFairVery Good1219085.0
January 1997FairSatisfactoryFairVery Good1227085.0
January 1995FairSatisfactoryFairVery Good1299085.0
February 1993FairSatisfactoryFairVery Good1249085.0
August 1991FairSatisfactoryFairVery Good1117085.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.5915790120
Reinforced Concrete Decksq. ft.4,7683,0521,4782380
Wearing Surfacessq. ft.4,7683,81400954
Reinforced Concrete Columneach44000
Reinforced Concrete Abutmentlinear ft.98861020
Reinforced Concrete Pier Caplinear ft.7575000
Fixed Bearingeach2002000
Steel Protective Coatingsq. ft.2018002
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.236023600
Steel Protective Coatingsq. ft.5054540051