I277 NBL over NC27 (S. MCDOWELL ST.)


+35.21556, -80.84188
35°12'56" N, 80°50'31" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I277 NBL over NC27 (S. MCDOWELL ST.)
Structure number:000000001190487
Old structure number:000000000119487 (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:77.4 ft. [23.6 m]
Deck width edge-to-edge:80.4 ft. [24.5 m]
Vertical clearance below bridge:16.4 ft. [5.0 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 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:49,500 [as of 2015]
Truck traffic:7% 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:Equal to present minimum criteria [6]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:92.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairSatisfactorySatisfactorySatisfactory4950092.3
July 2016FairSatisfactorySatisfactorySatisfactory4500091.7
July 2014FairSatisfactorySatisfactorySatisfactory4450091.7
July 2012FairGoodSatisfactorySatisfactory4300091.9
July 2010FairGoodSatisfactoryGood4350060.8
September 2008FairGoodSatisfactoryGood2600093.5
September 2006GoodGoodGoodGood4500091.7
July 2004GoodVery GoodVery GoodGood4100092.1
June 2002GoodVery GoodVery GoodGood4000092.2
July 2000GoodVery GoodVery GoodGood2950093.2
May 1998GoodVery GoodVery GoodGood3790092.4
May 1996GoodVery GoodVery GoodGood3195092.9
May 1994GoodVery GoodVery GoodGood2750093.9
July 1992GoodVery GoodVery GoodGood4320092.7
July 1990GoodVery GoodVery GoodGood2380094.2

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,8931,431382800
Steel Protective Coatingsq. ft.26,01525,7981054567
Reinforced Concrete Decksq. ft.13,4566,0257,43100
Reinforced Concrete Columneach103421
Reinforced Concrete Abutmentlinear ft.190189010
Reinforced Concrete Pier Caplinear ft.3453043470
Concrete Protective Coatingsq. ft.4,2384,238000
Compression Jointlinear ft.3240031410
Elastomeric Bearingeach4646000
Steel Protective Coatingsq. ft.4646000
Fixed Bearingeach2222000
Steel Protective Coatingsq. ft.2222000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3422796300