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I 90 over BOULDER RIVER

Map

Coordinates:
+45.82662, -109.94522
45°49'36" N, 109°56'43" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I 90 over BOULDER RIVER
Structure number:I00090369+00272
Location:BIG TIMBER
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:111.9 ft. [34.1 m]
Total length:396.0 ft. [120.7 m]
Roadway width between curbs:41.3 ft. [12.6 m]
Deck width edge-to-edge:44.3 ft. [13.5 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1980
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 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:5,017 [as of 2017]
Truck traffic:21% of total traffic
Deck condition:Good [7 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:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
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:97.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairGoodGoodSatisfactory501797.8
September 2016FairGoodGoodSatisfactory402597.8
September 2014FairGoodGoodSatisfactory760097.6
December 2013FairGoodGoodSatisfactory760097.6
September 2010FairGoodGoodSatisfactory760097.6
September 2007FairGoodGoodSatisfactory755097.7
October 2005FairGoodGoodSatisfactory814097.6
October 2003GoodGoodGoodGood682097.7
February 2002GoodGoodGoodGood682097.7
March 2000GoodGoodGoodGood653097.7
July 1998GoodGoodGoodGood592097.7
February 1996GoodGoodGoodGood531097.8
May 1994GoodGoodGoodGood559097.6
April 1992GoodGoodGoodGood581097.6
September 1989GoodVery GoodGoodGood600097.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,9821,9622000
Deck
Reinforced Concrete Decksq. ft.17,53416,83370100
Wearing Surfacessq. ft.17,53417,35917500
Substructure
Reinforced Concrete Pier Walllinear ft.131012830
Reinforced Concrete Abutmentlinear ft.1251101500
Joints
Assembly with Sealeach4646000
Bearings
Movable Bearingeach1001000
Steel Protective Coatingsq. ft.100640
Fixed Bearingeach30171300
Steel Protective Coatingsq. ft.3002190
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.79159319800