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LITTLE MISSOURI RD over COTTONWOOD CREEK 011

Carter County, Montana

Map

Coordinates:
+45.40707, -104.07660
45°24'25" N, 104°04'36" W

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Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	LITTLE MISSOURI RD over COTTONWOOD CREEK 011
Structure number:	L06090018+09001
Location:	3M S CAPITOL
Purpose:	Carries highway over waterway
Route classification:	Minor Collector (Rural) `[08]`
Length of largest span:	85.0 ft. `[25.9 m]`
Total length:	85.0 ft. `[25.9 m]`
Roadway width between curbs:	24.0 ft. `[7.3 m]`
Deck width edge-to-edge:	24.9 ft. `[7.6 m]`
Owner:	County Highway Agency `[02]`
Year built:	2015
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: August 2017

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	36 `[as of 2016]`
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Good `[7 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:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Roadway alignment appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. `[6]`
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. `[5]`
Sufficiency rating:	83.1
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$153,000

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
August 2017	Good	Good	Good	Good	36	83.1
August 2015	Good	Very Good	Very Good	Very Good	100	82.4
August 2013	Fair	Good	Fair	Good	100	30.4
September 2011	Fair	Good	Fair	Good	100	18.1
September 2009	Fair	Good	Satisfactory	Good	100	32.9
September 2007	Fair	Good	Satisfactory	Satisfactory	100	32.9
October 2005	Fair	Very Good	Satisfactory	Satisfactory	100	32.9
February 2004	Fair	Very Good	Satisfactory	Satisfactory	100	32.9
November 2001	Fair	Very Good	Satisfactory	Satisfactory	100	32.9
November 1999	Fair	Very Good	Satisfactory	Satisfactory	100	32.9
February 1998	Fair	Very Good	Satisfactory	Satisfactory	100	32.9
November 1995	Fair	Satisfactory	Fair	Satisfactory	96	21.4
June 1994	Good	Good	Good	Very Good	96	34.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	853	0	853	0	0
Substructure
Steel Column	each	12	0	12	0	0
Steel Abutment	linear ft.	56	56	0	0	0
Steel Protective Coating	sq. ft.	280	280	0	0	0
Steel Pier Cap	linear ft.	56	0	56	0	0
Deck
Corrugated or Orthotropic Deck	sq. ft.	2,120	2,120	0	0	0
Wearing Surfaces	sq. ft.	2,120	2,120	0	0	0
Steel Protective Coating	sq. ft.	2,120	2,120	0	0	0

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
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