US64 over US421


+35.73427, -79.43178
35°44'03" N, 79°25'54" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US64 over US421
Structure number:000000000370447
Location:0.1 MI. E. JCT.SR1373
Purpose:Carries highway overpass over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:119.1 ft. [36.3 m]
Total length:237.9 ft. [72.5 m]
Roadway width between curbs:84.0 ft. [25.6 m]
Deck width edge-to-edge:86.6 ft. [26.4 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1984
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
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: April 2014 

Status:Open, no restriction [A]
Average daily traffic:20,000 [as of 2012]
Truck traffic:12% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 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:Superior to present desirable criteria [9]
Underclearances appraisal:Equal to present minimum criteria [6]
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:98.8 tons [89.8 metric tons]
Inventory rating:68.9 tons [62.6 metric tons]
Sufficiency rating:89.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201489.0Not deficientGoodGoodFair20000
May 201289.0Not deficientGoodGoodFair19000
May 2010100.0Not deficientSatisfactoryVery GoodSatisfactory17500
May 2008100.0Not deficientSatisfactoryVery GoodSatisfactory20000
April 2006100.0Not deficientSatisfactoryVery GoodSatisfactory20000
April 2004100.0Not deficientSatisfactoryVery GoodSatisfactory19000
July 2002100.0Not deficientSatisfactoryVery GoodSatisfactory18500
August 2000100.0Not deficientSatisfactoryVery GoodSatisfactory15100
May 199898.0Not deficientSatisfactoryVery GoodSatisfactory12550
May 199095.8Not deficientGoodVery GoodGood7900