US Bridges

I277 Ramp over I277 Nbl

Fair

Mecklenburg County, North Carolina · 0.3 Mi. W. Jct. NC27 · Structure no. 000000001190047

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
3 main spans
Daily traffic
32,000
2022 count
Owner
State
State Highway Agency

About this bridge

I277 Ramp over I277 Nbl is a steel stringer/multi-beam or girder carrying I277 Ramp over I277 Nbl 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 32,000 vehicles a day, roughly 16% of them trucks, projected to reach 64,000 by 2040. The structure is 151 ft (46 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesI277 Ramp
CrossesI277 Nbl
Location0.3 Mi. W. Jct. NC27
RouteInterstate 277
CountyMecklenburg County
StateNorth Carolina
Coordinates35.22203, -80.82874
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length151 ft (46 m)
Longest span66 ft (20.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic32,000 (2022)
Projected traffic64,000 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I277 Ramp over I277 Nbl built?

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

What condition is I277 Ramp over I277 Nbl 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 I277 Ramp over I277 Nbl carry?

About 32,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I277 Ramp over I277 Nbl?

The structure is 151 ft (46 m) long with a longest span of 66 ft (20.1 m) and a deck 33 ft wide.

Who owns I277 Ramp over I277 Nbl?

It is owned by the State Highway Agency.