County Road 1A over BN RR


+43.81021, -104.17018
43°48'37" N, 104°10'13" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:County Road 1A over BN RR
Structure number:DYC
Location:T44N R061W S10
Purpose:Carries highway over railroad
Route classification:Local (Rural) [09]
Length of largest span:29.9 ft. [9.1 m]
Total length:111.9 ft. [34.1 m]
Roadway width between curbs:20.0 ft. [6.1 m]
Deck width edge-to-edge:22.0 ft. [6.7 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Owner:County Highway Agency [02]
Year built:1929
Historic significance:Historical significance is not determinable at this time [4]
Design load:M 13.5 / H 15 [2]
Number of main spans:5
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:163 [as of 2016]
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:52.1
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$85,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2017PoorPoorFairFair16352.1
April 2015PoorPoorFairFair1076.9
March 2013PoorSeriousFairFair1075.1
March 2011PoorSeriousFairFair1074.9
March 2009PoorSeriousFairFair1074.9
March 2007PoorSeriousFairFair1074.9
April 2005PoorSeriousFairFair7574.8
April 2003PoorSeriousFairFair7574.8
March 2002PoorSeriousFairFair7574.8
April 2000PoorImminent FailurePoorFair7558.8
April 1998PoorImminent FailurePoorFair7558.8
May 1996PoorImminent FailurePoorFair7558.8
May 1995PoorImminent FailurePoorFair7558.8
May 1993FairGoodGoodSatisfactory7590.9
August 1991FairGoodGoodSatisfactory7590.9