I277 NBL over NC27 (MCDOWELL ST)


+35.21558, -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 (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:79.1 ft. [24.1 m]
Vertical clearance below bridge:19.7 ft. [6.0 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:MS 18+Mod / HS 20+Mod [6]
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 2014 

Status:Open, no restriction [A]
Average daily traffic:44,500 [as of 2012]
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:Equal to present minimum criteria [6]
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:89.8 tons [81.6 metric tons]
Inventory rating:53.9 tons [49.0 metric tons]
Sufficiency rating:91.7

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201491.7Not deficientSatisfactorySatisfactorySatisfactory44500
July 201291.9Not deficientGoodSatisfactorySatisfactory43000
July 201060.8Structurally deficientGoodSatisfactoryGood43500
September 200893.5Not deficientGoodSatisfactoryGood26000
September 200691.7Not deficientGoodGoodGood45000
July 200492.1Not deficientVery GoodVery GoodGood41000
June 200292.2Not deficientVery GoodVery GoodGood40000
July 200093.2Not deficientVery GoodVery GoodGood29500
May 199892.4Not deficientVery GoodVery GoodGood37900
May 199692.9Not deficientVery GoodVery GoodGood31950
May 199493.9Not deficientVery GoodVery GoodGood27500
July 199292.7Not deficientVery GoodVery GoodGood43200
July 199094.2Not deficientVery GoodVery GoodGood23800