US421 NBL over NC24


+34.99520, -78.33736
34°59'43" N, 78°20'14" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US421 NBL over NC24
Structure number:000000001630040
Location:1.2 MI. N. SR 1227
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:65.0 ft. [19.8 m]
Total length:130.9 ft. [39.9 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.0 ft. [12.8 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1967
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 9 / H 10 [1]
Number of main spans:3
Main spans material:Steel [3]
Main spans 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: May 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,000 [as of 2013]
Truck traffic:12% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:58.9 tons [53.5 metric tons]
Inventory rating:35.0 tons [31.8 metric tons]
Sufficiency rating:95.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201695.9FairSatisfactoryGoodGoodFO8000
May 201483.3FairFairFairFairFO8500
May 201283.3FairFairFairFairFO8000
May 201098.0FairSatisfactoryGoodSatisfactory-8000
May 200895.8FairSatisfactoryGoodSatisfactory-8500
August 200684.0FairFairFairSatisfactoryFO8500
June 200484.0FairFairFairSatisfactoryFO8500
August 200284.0FairFairFairSatisfactoryFO6500
March 200084.0FairFairFairSatisfactoryFO7050
March 199884.0FairFairFairSatisfactoryFO7050
February 199086.5FairFairSatisfactoryGoodFO7150