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US421 NBL over SR1710

Map

Coordinates:
+36.11357, -80.58844
36°06'49" N, 80°35'18" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:US421 NBL over SR1710
Structure number:000000001970082
Location:.2 MI.S.JCT.SR1146
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:48.9 ft. [14.9 m]
Total length:152.9 ft. [46.6 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:31.5 ft. [9.6 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Owner:State Highway Agency [01]
Year built:1960
Year reconstructed:1991
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: July 2009

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:10,250 [as of 2008]
Truck traffic:14% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:75.2 tons [68.4 metric tons]
Inventory rating:44.6 tons [40.5 metric tons]
Sufficiency rating:80.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$744,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 200980.0FairSatisfactoryGoodSatisfactoryFO10250
November 199978.0GoodGoodGoodGood-8500
April 199175.2GoodVery GoodGoodGood-5750