US Bridges

NC16 Sbl over I77 Sbl

Fair

Mecklenburg County, North Carolina · 0.7 Mi. S. Jct. SR2074 · Structure no. 000000001190341

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
189 ft
3 main spans
Daily traffic
12,500
2016 count
Owner
State
State Highway Agency

About this bridge

NC16 Sbl over I77 Sbl is a steel stringer/multi-beam or girder carrying NC16 Sbl over I77 Sbl in Mecklenburg County, North Carolina. It was built in 1972, so it is 53 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 12,500 vehicles a day, roughly 12% of them trucks, projected to reach 25,000 by 2040. The structure is 189 ft (57.6 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesNC16 Sbl
CrossesI77 Sbl
Location0.7 Mi. S. Jct. SR2074
RouteState Highway 16
CountyMecklenburg County
StateNorth Carolina
Coordinates35.24403, -80.84813
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating51.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length189 ft (57.6 m)
Longest span82 ft (24.9 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2016)
Projected traffic25,000 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NC16 Sbl over I77 Sbl built?

It was built in 1972, making it 53 years old in 2025.

What condition is NC16 Sbl over I77 Sbl in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does NC16 Sbl over I77 Sbl carry?

About 12,500 vehicles per day (2016 count), of which roughly 12% are trucks.

How long is NC16 Sbl over I77 Sbl?

The structure is 189 ft (57.6 m) long with a longest span of 82 ft (24.9 m) and a deck 42 ft wide.

Who owns NC16 Sbl over I77 Sbl?

It is owned by the State Highway Agency.