US 1- SR 15 over COBB CREEK


+32.02031, -82.34654
32°01'13" N, 82°20'48" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 1- SR 15 over COBB CREEK
Structure number:000000027900030
Location:11 MI S OF LYONS
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:29.9 ft. [9.1 m]
Total length:420.0 ft. [128.0 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:29.9 ft. [9.1 m]
Owner:State Highway Agency [01]
Year built:1940
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:14
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,720 [as of 2012]
Truck traffic:21% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 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:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
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:64.3
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$2,462,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2017FairGoodSatisfactorySatisfactory372064.3
July 2015FairGoodSatisfactorySatisfactory372064.3
July 2013FairGoodSatisfactorySatisfactory372064.3
July 2011FairGoodSatisfactorySatisfactory353064.4
July 2009FairGoodSatisfactorySatisfactory384064.3
June 2007FairGoodSatisfactorySatisfactory398064.3
July 2005FairGoodSatisfactorySatisfactory377064.3
July 2003FairGoodSatisfactorySatisfactory460064.1
October 2001FairGoodSatisfactorySatisfactory450064.1
October 1999FairGoodSatisfactorySatisfactory417064.2
August 1997FairGoodSatisfactorySatisfactory417062.2
April 1995FairGoodSatisfactorySatisfactory417060.4
June 1993FairGoodSatisfactorySatisfactory417060.4
June 1991FairGoodFairSatisfactory417050.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.2,1002,092800
Reinforced Concrete Top Flangesq. ft.12,60012,600000
Wearing Surfacessq. ft.9,9969,996000
Reinforced Concrete Columneach2621500
Reinforced Concrete Abutmentlinear ft.5857100
Reinforced Concrete Pier Caplinear ft.325325000
Pourable Jointlinear ft.360036000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.840834600