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I 15 over HIGHLAND ROAD

Map

Coordinates:
+45.85286, -112.67579
45°51'10" N, 112°40'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 15 over HIGHLAND ROAD
Structure number:I00015109+09512
Location:7.4M N DIVIDE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:75.1 ft. [22.9 m]
Total length:76.1 ft. [23.2 m]
Roadway width between curbs:41.3 ft. [12.6 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1976
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Prestressed concrete [5]
Main span 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: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,810 [as of 2015]
Truck traffic:17% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:96.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017FairSatisfactoryGoodGood181096.9
March 2013GoodGoodGoodGood352097.8
March 2009FairSatisfactoryGoodGood339097.8
February 2005GoodGoodGoodGood354097.8
March 2001GoodGoodGoodGood359097.8
March 1997GoodGoodGoodGood347097.8
April 1993GoodGoodGoodGood287097.8
December 1990GoodGoodGoodGood287097.8

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.525525000
Deck
Reinforced Concrete Decksq. ft.3,3371,8806228350
Concrete Protective Coatingsq. ft.3,3372,73600601
Substructure
Reinforced Concrete Abutmentlinear ft.82711010
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1511015000