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I 15 over DRY FORK MARIAS RIVER

Map

Coordinates:
+48.21717, -111.93346
48°13'02" N, 111°56'00" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 15 over DRY FORK MARIAS RIVER
Structure number:I00015342+00252
Location:2M N CONRAD
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:71.5 ft. [21.8 m]
Total length:247.1 ft. [75.3 m]
Roadway width between curbs:41.3 ft. [12.6 m]
Deck width edge-to-edge:44.3 ft. [13.5 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: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: 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: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]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:97.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactoryGoodGood179997.9
September 2013FairSatisfactoryGoodGood343097.8
September 2009FairSatisfactoryGoodGood381097.8
September 2005GoodGoodVery GoodGood395097.8
September 2001GoodGoodVery GoodGood369096.8
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.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,5191,517200
Deck
Reinforced Concrete Decksq. ft.10,90410,904000
Concrete Protective Coatingsq. ft.10,90410,904000
Substructure
Reinforced Concrete Columneach99000
Reinforced Concrete Abutmentlinear ft.105871800
Reinforced Concrete Pier Caplinear ft.131131000
Bearings
Fixed Bearingeach38261200
Steel Protective Coatingsq. ft.3829333
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.49537112400
Steel Protective Coatingsq. ft.8254971648282