US Bridges

I85 Ramp over I77 Ramp

Fair

Mecklenburg County, North Carolina · 0.2 Mi. N. Jct. I77 · Structure no. 000000001190532

Built
1988
37 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
262 ft
3 main spans
Daily traffic
7,800
2022 count
Owner
State
State Highway Agency

About this bridge

I85 Ramp over I77 Ramp is a steel stringer/multi-beam or girder carrying I85 Ramp over I77 Ramp in Mecklenburg County, North Carolina. It was built in 1988, so it is 37 years old, younger 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 7,800 vehicles a day, roughly 16% of them trucks, projected to reach 15,600 by 2040. The structure is 262 ft (79.8 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesI85 Ramp
CrossesI77 Ramp
Location0.2 Mi. N. Jct. I77
RouteInterstate 85
CountyMecklenburg County
StateNorth Carolina
Coordinates35.27244, -80.84034
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length262 ft (79.8 m)
Longest span118 ft (35.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2022)
Projected traffic15,600 by 2040
Trucks16%
Lanes on structure1
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I85 Ramp over I77 Ramp built?

It was built in 1988, making it 37 years old in 2025.

What condition is I85 Ramp over I77 Ramp 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 November 2023.

How much traffic does I85 Ramp over I77 Ramp carry?

About 7,800 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I85 Ramp over I77 Ramp?

The structure is 262 ft (79.8 m) long with a longest span of 118 ft (35.9 m) and a deck 27 ft wide.

Who owns I85 Ramp over I77 Ramp?

It is owned by the State Highway Agency.