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S 91 over INT EAST BIG TIMBER I 90

Map

Coordinates:
+45.83207, -109.90885
45°49'55" N, 109°54'32" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:S 91 over INT EAST BIG TIMBER I 90
Structure number:P00091003+00311
Location:2M E BIG TIMBER
Purpose:Carries highway overpass over highway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:111.9 ft. [34.1 m]
Total length:322.9 ft. [98.4 m]
Roadway width between curbs:43.3 ft. [13.2 m]
Deck width edge-to-edge:46.3 ft. [14.1 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1981
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: March 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,077 [as of 2016]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 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:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:99.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018FairSatisfactoryGoodSatisfactory207799.0
March 2016FairSatisfactoryGoodSatisfactory169099.0
March 2014FairGoodGoodSatisfactory1690100.0
March 2010FairGoodGoodSatisfactory1630100.0
March 2006FairGoodGoodSatisfactory2020100.0
March 2004FairGoodGoodSatisfactory1820100.0
November 2001FairGoodGoodSatisfactory1820100.0
January 2000FairGoodGoodSatisfactory1640100.0
November 1997FairGoodGoodSatisfactory1341100.0
January 1996FairGoodSatisfactorySatisfactory1341100.0
May 1994FairGoodSatisfactorySatisfactory149498.0
April 1992FairGoodGoodSatisfactory180598.0
September 1989GoodVery GoodVery GoodGood168098.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,8271,827000
Deck
Reinforced Concrete Decksq. ft.14,96214,66329900
Wearing Surfacessq. ft.14,96214,962000
Substructure
Reinforced Concrete Columneach94500
Reinforced Concrete Abutmentlinear ft.1419914280
Reinforced Concrete Pier Caplinear ft.144144000
Bearings
Fixed Bearingeach4432480
Steel Protective Coatingsq. ft.4432408
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.64338625700