I277 SBL over US29 & NC49


+35.22400, -80.85343
35°13'26" N, 80°51'12" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I277 SBL over US29 & NC49
Structure number:000000001190510
Location:0.7 MI. N. JCT. I77
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:86.0 ft. [26.2 m]
Total length:115.2 ft. [35.1 m]
Roadway width between curbs:85.0 ft. [25.9 m]
Deck width edge-to-edge:87.6 ft. [26.7 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1987
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: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: August 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:42,000 [as of 2012]
Truck traffic:16% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
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:89.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2016GoodGoodGoodGood4200089.9
August 2014GoodGoodGoodGood4200089.9
August 2012GoodGoodGoodGood3375092.8
August 2010GoodGoodVery GoodGood4050092.1
September 2008GoodGoodVery GoodVery Good6500089.8
December 2006GoodGoodVery GoodVery Good4000092.2
July 2004GoodGoodVery GoodVery Good4000092.2
August 2002GoodVery GoodVery GoodVery Good3900092.3
July 2000GoodVery GoodVery GoodVery Good2600093.5
June 1998GoodVery GoodVery GoodVery Good2565093.5
August 1990GoodVery GoodVery GoodVery Good1040096.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,3921,392000
Steel Protective Coatingsq. ft.2424000
Reinforced Concrete Columneach65010
Reinforced Concrete Abutmentlinear ft.214209410
Reinforced Concrete Pile Cap/Footinglinear ft.9898000
Steel Pileeach1919000
Reinforced Concrete Pier Caplinear ft.314308510
Concrete Protective Coatingsq. ft.954954000
Compression Jointlinear ft.194019400
Assembly with Sealeach97623500
Fixed Bearingeach4848000
Steel Protective Coatingsq. ft.2424000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2321666600
Reinforced Concrete Slabsq. ft.10,149010,14900