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LOWER SWEET GRASS over YELLOWSTONE RIVER 038

Map

Coordinates:
+45.75986, -109.77181
45°45'35" N, 109°46'19" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LOWER SWEET GRASS over YELLOWSTONE RIVER 038
Structure number:L49001000+08001
Location:SE GREYCLIFF
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:118.1 ft. [36.0 m]
Total length:353.0 ft. [107.6 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:25.9 ft. [7.9 m]
Owner:County Highway Agency [02]
Year built:1991
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: August 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:100 [as of 2001]
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:97.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairGoodSatisfactoryGood10097.7
August 2016FairGoodFairGood10086.7
August 2014FairGoodFairGood10086.7
August 2012FairGoodFairGood10086.7
August 2010GoodGoodGoodGood10097.7
August 2008GoodVery GoodGoodGood10097.7
August 2006GoodVery GoodGoodVery Good10097.7
July 2004GoodVery GoodGoodVery Good10097.7
September 2001GoodVery GoodGoodVery Good10097.7
March 2000GoodVery GoodGoodVery Good10097.7
March 1998GoodVery GoodGoodVery Good10097.7
April 1996GoodVery GoodGoodVery Good10097.7
August 1994GoodVery GoodGoodVery Good9697.7
May 1992GoodExcellentExcellentExcellent25298.4
January 1990GoodExcellentExcellentExcellent25298.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,0601,03811110
Deck
Reinforced Concrete Decksq. ft.9,1719,171000
Substructure
Reinforced Concrete Pier Walllinear ft.4604600
Reinforced Concrete Abutmentlinear ft.8988100
Reinforced Concrete Pile Cap/Footinglinear ft.22000
Joints
Strip Seal Jointlinear ft.52391300
Bearings
Elastomeric Bearingeach90900
Steel Protective Coatingsq. ft.90900
Fixed Bearingeach33000
Steel Protective Coatingsq. ft.33000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.705106564350
Steel Protective Coatingsq. ft.1,05809521060