US Bridges

Clanton Road over I77

Fair

Mecklenburg County, North Carolina · 1.1 Mi. E. Jct. NC49 · Structure no. 000000001190202

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
203 ft
4 main spans
Daily traffic
15,500
2022 count
Owner
State
State Highway Agency

About this bridge

Clanton Road over I77 is a steel stringer/multi-beam or girder carrying Clanton Road over I77 in Mecklenburg County, North Carolina. It was built in 1970, so it is 55 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 6 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 15,500 vehicles a day, roughly 7% of them trucks, projected to reach 31,000 by 2040. The structure is 203 ft (61.8 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesClanton Road
CrossesI77
Location1.1 Mi. E. Jct. NC49
RouteCity Street 0
CountyMecklenburg County
StateNorth Carolina
Coordinates35.19788, -80.88297
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating36.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length203 ft (61.8 m)
Longest span61 ft (18.5 m)
Deck width74 ft (22.5 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2022)
Projected traffic31,000 by 2040
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Clanton Road over I77 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Clanton Road over I77 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 August 2024.

How much traffic does Clanton Road over I77 carry?

About 15,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Clanton Road over I77?

The structure is 203 ft (61.8 m) long with a longest span of 61 ft (18.5 m) and a deck 74 ft wide.

Who owns Clanton Road over I77?

It is owned by the State Highway Agency.