I 15 over RR


+48.21587, -111.93259
48°12'57" N, 111°55'57" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 15 over RR
Structure number:I00015341+09252
Location:2M N CONRAD
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:71.5 ft. [21.8 m]
Total length:165.0 ft. [50.3 m]
Roadway width between curbs:41.3 ft. [12.6 m]
Deck width edge-to-edge:44.3 ft. [13.5 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Owner:State Highway Agency [01]
Year built:1972
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: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,799 [as of 2016]
Truck traffic:22% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:97.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactoryVery GoodGood179997.9
September 2013FairSatisfactoryGoodGood343097.8
September 2009FairSatisfactoryGoodGood381097.8
September 2005GoodGoodVery GoodVery Good395097.8
September 2001GoodGoodVery GoodVery Good369096.8
April 1999GoodVery GoodVery GoodVery Good338097.8
December 1996GoodVery GoodVery GoodVery Good305097.9
October 1992GoodVery GoodVery GoodVery Good284097.8
January 1991GoodVery GoodVery GoodVery Good292097.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.965965000
Reinforced Concrete Decksq. ft.7,2877,09719000
Concrete Protective Coatingsq. ft.7,2877,287000
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.10597800
Reinforced Concrete Pier Caplinear ft.8989000
Fixed Bearingeach2416800
Steel Protective Coatingsq. ft.2421201
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.331033100
Steel Protective Coatingsq. ft.5523321105555