US Bridges

I-77 over I-40 W. Access Ramp

Fair

Iredell County, North Carolina · 0.15 Mi. N. Jct. I-40 · Structure no. 000000000970568

Built
2014
11 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
1 main span
Daily traffic
28,250
2020 count
Owner
State
State Highway Agency

About this bridge

I-77 over I-40 W. Access Ramp is a prestressed concrete stringer/multi-beam or girder carrying I-77 over I-40 W. Access Ramp in Iredell County, North Carolina. It was built in 2014, so it is 11 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 28,250 vehicles a day, roughly 16% of them trucks, projected to reach 56,500 by 2040. The structure is 122 ft (37.1 m) long and 123 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-77
CrossesI-40 W. Access Ramp
Location0.15 Mi. N. Jct. I-40
RouteInterstate 77
CountyIredell County
StateNorth Carolina
Coordinates35.81207, -80.86095
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 inspectionFebruary 2025
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 rating68.9 US tons
Inventory rating51.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length122 ft (37.1 m)
Longest span118 ft (35.9 m)
Deck width123 ft (37.5 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,250 (2020)
Projected traffic56,500 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 over I-40 W. Access Ramp built?

It was built in 2014, making it 11 years old in 2025.

What condition is I-77 over I-40 W. Access 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 February 2025.

How much traffic does I-77 over I-40 W. Access Ramp carry?

About 28,250 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I-77 over I-40 W. Access Ramp?

The structure is 122 ft (37.1 m) long with a longest span of 118 ft (35.9 m) and a deck 123 ft wide.

Who owns I-77 over I-40 W. Access Ramp?

It is owned by the State Highway Agency.