US 21 over S.C.9 & L & C RR


+34.70210, -80.89486
34°42'08" N, 80°53'41" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 21 over S.C.9 & L & C RR
Structure number:000000000003614
Old structure number:001220002100400 (from 1992 edition)
Purpose:Carries highway over highway
Route classification:Major Collector (Rural) [07]
Length of largest span:100.1 ft. [30.5 m]
Total length:304.1 ft. [92.7 m]
Roadway width between curbs:30.2 ft. [9.2 m]
Deck width edge-to-edge:35.8 ft. [10.9 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Skew angle:40°
Owner:State Highway Agency [01]
Year built:1961
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,900 [as of 2017]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:75.4
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$701,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018FairSatisfactorySatisfactorySatisfactory390075.4
March 2016FairSatisfactorySatisfactorySatisfactory290075.5
March 2014FairSatisfactorySatisfactorySatisfactory230082.1
March 2012FairSatisfactorySatisfactorySatisfactory240082.1
April 2010FairSatisfactorySatisfactorySatisfactory270082.1
April 2008FairSatisfactorySatisfactorySatisfactory210082.1
April 2006FairSatisfactorySatisfactorySatisfactory300075.9
April 1998GoodGoodGoodGood310076.1
February 1990GoodGoodGoodGood317375.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.500005000
Prestressed Concrete Girder/Beamlinear ft.9259002500
Reinforced Concrete Decksq. ft.10,85310,50035300
Reinforced Concrete Columneach2121000
Reinforced Concrete Pier Caplinear ft.3223002200
Pourable Jointlinear ft.4200032298
Movable Bearingeach5000500
Fixed Bearingeach1001000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.608608000