US Bridges

I277 US74 over NC16S

Good

Mecklenburg County, North Carolina · 0.1 Mi. S. Jct. 16N · Structure no. 000000001190448

Built
1981
44 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
157 ft
3 main spans
Daily traffic
90,500
2020 count
Owner
State
State Highway Agency

About this bridge

I277 US74 over NC16S is a steel continuous stringer/multi-beam or girder carrying I277 US74 over NC16S in Mecklenburg County, North Carolina. It was built in 1981, so it is 44 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 90,500 vehicles a day, roughly 16% of them trucks, projected to reach 181,000 by 2040. The structure is 157 ft (47.8 m) long and 114 ft wide.

CarriesI277 US74
CrossesNC16S
Location0.1 Mi. S. Jct. 16N
RouteInterstate 277
Coordinates35.21717, -80.83532
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating66.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length157 ft (47.8 m)
Longest span87 ft (26.5 m)
Deck width114 ft (34.7 m)
Roadway width110 ft (33.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90,500 (2020)
Projected traffic181,000 by 2040
Trucks16%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I277 US74 over NC16S built?

It was built in 1981, making it 44 years old in 2025.

What condition is I277 US74 over NC16S in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I277 US74 over NC16S carry?

About 90,500 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I277 US74 over NC16S?

The structure is 157 ft (47.8 m) long with a longest span of 87 ft (26.5 m) and a deck 114 ft wide.

Who owns I277 US74 over NC16S?

It is owned by the State Highway Agency.