US421 SBL over US601


+36.11896, -80.66015
36°07'08" N, 80°39'37" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US421 SBL over US601
Structure number:000000001970200
Old structure number:000000000197200 (from 1992 edition)
Location:.8 MI.JCT.SR1150
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:89.9 ft. [27.4 m]
Total length:163.1 ft. [49.7 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:41.0 ft. [12.5 m]
Vertical clearance below bridge:15.4 ft. [4.7 m]
Owner:State Highway Agency [01]
Year built: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: June 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:9,000 [as of 2013]
Truck traffic:14% of total traffic
Deck condition:Good [7 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:68.9 tons [62.6 metric tons]
Inventory rating:40.9 tons [37.2 metric tons]
Sufficiency rating:97.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201597.0GoodGoodGoodGood-9000
June 201397.0GoodGoodGoodGood-8500
June 201197.0GoodGoodGoodGood-8500
July 200997.0GoodGoodGoodGood-9500
September 200797.0GoodVery GoodVery GoodVery Good-8700
August 200597.0GoodVery GoodVery GoodVery Good-8700
July 200397.0GoodExcellentExcellentExcellent-7000
July 200197.0GoodExcellentExcellentExcellent-8000
November 199995.0GoodExcellentExcellentExcellent-8000
July 199795.0GoodExcellentExcellentExcellent-7500
July 199595.0GoodExcellentExcellentExcellent-5850
June 199396.0GoodExcellentExcellentExcellent-150
April 199194.6GoodVery GoodVery GoodVery Good-5250