I277 SBL, US74WBL over NC27 (S. MCDOWELL ST.)


+35.21569, -80.84170
35°12'56" N, 80°50'30" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I277 SBL, US74WBL over NC27 (S. MCDOWELL ST.)
Structure number:000000001190488
Old structure number:000000000119488 (from 1992 edition)
Location:0.5 MI. S. JCT. NC16
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:101.1 ft. [30.8 m]
Total length:170.0 ft. [51.8 m]
Roadway width between curbs:62.7 ft. [19.1 m]
Deck width edge-to-edge:65.6 ft. [20.0 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Skew angle:14°
Owner:State Highway Agency [01]
Year built:1986
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 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:48,000 [as of 2013]
Truck traffic:16% 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: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:98.8 tons [89.8 metric tons]
Inventory rating:73.8 tons [67.1 metric tons]
Sufficiency rating:90.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201690.3FairSatisfactorySatisfactorySatisfactory-48000
July 201490.7FairSatisfactorySatisfactorySatisfactory-44500
July 201290.8FairGoodSatisfactorySatisfactory-43000
July 201091.9FairGoodSatisfactorySatisfactory-31500
September 200892.5FairGoodSatisfactoryGood-26000
September 200692.5GoodGoodGoodGood-25500
July 200491.0GoodVery GoodVery GoodGood-41000
June 200291.1GoodVery GoodVery GoodGood-40000
July 200092.1GoodVery GoodVery GoodGood-29500
May 199891.3GoodVery GoodVery GoodGood-37900
May 199692.3GoodVery GoodVery GoodGood-27500
May 199492.9GoodVery GoodVery GoodGood-27500
July 199291.6GoodVery GoodVery GoodGood-43200
July 199093.1GoodVery GoodVery GoodGood-23800