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US HWY 91 N over DRY FORK MARIAS 080

Map

Coordinates:
+48.21481, -111.94516
48°12'53" N, 111°56'43" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US HWY 91 N over DRY FORK MARIAS 080
Structure number:L37302002+06001
Location:2M N CONRAD
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:38.1 ft. [11.6 m]
Total length:113.9 ft. [34.7 m]
Roadway width between curbs:29.2 ft. [8.9 m]
Deck width edge-to-edge:31.5 ft. [9.6 m]
Owner:State Highway Agency [01]
Year built:1931
Year reconstructed:1951
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Not applicable [N]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:100 [as of 2002]
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present minimum criteria [6]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:71.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018FairGoodFairSatisfactory10071.0
November 2016FairGoodFairSatisfactory10071.0
November 2014FairGoodFairSatisfactory10071.0
December 2012FairGoodFairSatisfactory10071.0
December 2010FairGoodFairSatisfactory10072.0
December 2008FairGoodFairSatisfactory10072.0
November 2006FairSatisfactoryFairSatisfactory10067.0
November 2004FairSatisfactoryFairSatisfactory10067.0
November 2002FairSatisfactoryFairSatisfactory10067.0
August 2001FairSatisfactorySatisfactorySatisfactory10077.0
May 1999FairSatisfactorySatisfactorySatisfactory10075.0
October 1992FairSatisfactorySatisfactorySatisfactory25272.8
February 1991FairSatisfactorySatisfactorySatisfactory25276.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Girder/Beamlinear ft.686561113120
Deck
Reinforced Concrete Top Flangesq. ft.3,5953,5435200
Wearing Surfacessq. ft.3,5953,38920060
Substructure
Reinforced Concrete Columneach62220
Reinforced Concrete Abutmentlinear ft.6965400
Reinforced Concrete Pier Caplinear ft.59491000
Bearings
Movable Bearingeach61500
Steel Protective Coatingsq. ft.61122
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2302091380