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COTTONWOOD CR RD over WILLOW CREEK 020

Carter County, Montana

Map

Coordinates:
+45.09927, -104.53278
45°05'57" N, 104°31'58" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:COTTONWOOD CR RD over WILLOW CREEK 020
Structure number:L06042020+05001
Location:8M NW ALZADA
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:60.0 ft. [18.3 m]
Total length:88.9 ft. [27.1 m]
Roadway width between curbs:17.4 ft. [5.3 m]
Deck width edge-to-edge:18.0 ft. [5.5 m]
Owner:County Highway Agency [02]
Year built:1986
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Corrugated Steel [6]
Wearing surface:Gravel [8]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:100 [as of 2004]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:48.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$261,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactorySatisfactoryFair10048.5
September 2015FairGoodSatisfactoryFair10047.7
September 2013FairGoodSatisfactoryFair10047.7
September 2011FairGoodSatisfactorySatisfactory10056.2
September 2009FairGoodSatisfactoryFair10030.2
September 2007FairGoodGoodFair10030.2
October 2005FairVery GoodGoodFair10047.7
February 2004FairVery GoodGoodFair10047.7
November 2001FairVery GoodGoodFair10047.7
November 1999FairVery GoodGoodFair10048.5
February 1998FairVery GoodVery GoodFair10048.5
November 1995FairVery GoodVery GoodFair3148.4
May 1994FairVery GoodVery GoodSatisfactory3154.7
February 1992FairVery GoodVery GoodSatisfactory3158.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Substructure
Reinforced Concrete Abutmentlinear ft.66330330
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.177001770