County Road 7A over Little Thunder Creek


+43.65244, -104.92411
43°39'09" N, 104°55'27" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:County Road 7A over Little Thunder Creek
Structure number:EFJ
Location:13 Miles W. Of Clareton
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:47.9 ft. [14.6 m]
Total length:60.0 ft. [18.3 m]
Roadway width between curbs:14.1 ft. [4.3 m]
Deck width edge-to-edge:14.1 ft. [4.3 m]
Owner:County Highway Agency [02]
Year built:1981
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [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: April 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:276 [as of 2017]
Truck traffic:10% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 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 replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:41.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$357,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018PoorPoorFairFair27641.1
April 2017PoorPoorFairFair1845.4
April 2016PoorPoorFairSatisfactory1145.4
April 2015PoorPoorFairSatisfactory1043.5
April 2014PoorSeriousFairSatisfactory1041.5
March 2013PoorSeriousFairSatisfactory1041.3
September 2012PoorSeriousFairSatisfactory1041.0
March 2011PoorSeriousFairSatisfactory1041.3
March 2009PoorSeriousFairSatisfactory1053.0
March 2007PoorSeriousFairSatisfactory1053.0
April 2005PoorSeriousFairSatisfactory4553.0
April 2003PoorSeriousFairSatisfactory4553.0
March 2001PoorSeriousFairSatisfactory4553.0
March 1999PoorCriticalFairSatisfactory4553.0
April 1997FairGoodFairSatisfactory4558.0
May 1995FairSatisfactoryFairFair4558.0
April 1993GoodVery GoodGoodGood4569.0
May 1991GoodVery GoodGoodGood4569.0