US Bridges

I77 Sbl over US29 NC27(MOREHEAD St.)

Fair

Mecklenburg County, North Carolina · 0.38 Mi. N. Jct. US74 · Structure no. 000000001190222

Built
1970
55 years old, rebuilt 1995
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
179 ft
3 main spans
Daily traffic
67,000
2022 count
Owner
State
State Highway Agency

About this bridge

I77 Sbl over US29 NC27(MOREHEAD St.) is a steel stringer/multi-beam or girder carrying I77 Sbl over US29 NC27(MOREHEAD St.) in Mecklenburg County, North Carolina. It was built in 1970 and reconstructed in 1995, 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 67,000 vehicles a day, roughly 16% of them trucks, projected to reach 134,000 by 2040. The structure is 179 ft (54.5 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI77 Sbl
CrossesUS29 NC27(MOREHEAD St.)
Location0.38 Mi. N. Jct. US74
RouteInterstate 77
CountyMecklenburg County
StateNorth Carolina
Coordinates35.22908, -80.86062
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length179 ft (54.5 m)
Longest span95 ft (28.9 m)
Deck width64 ft (19.6 m)
Roadway width61 ft (18.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,000 (2022)
Projected traffic134,000 by 2040
Trucks16%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I77 Sbl over US29 NC27(MOREHEAD St.) built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1995.

What condition is I77 Sbl over US29 NC27(MOREHEAD St.) 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 I77 Sbl over US29 NC27(MOREHEAD St.) carry?

About 67,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I77 Sbl over US29 NC27(MOREHEAD St.)?

The structure is 179 ft (54.5 m) long with a longest span of 95 ft (28.9 m) and a deck 64 ft wide.

Who owns I77 Sbl over US29 NC27(MOREHEAD St.)?

It is owned by the State Highway Agency.