US Bridges

I-40 Rampto I-77SB over I-40

Good

Iredell County, North Carolina · 0.79 Mi. N Mocksville RD · Structure no. 000000000970599

Built
2023
2 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,289 ft
17 main spans
Daily traffic
28,560
2018 count
Owner
State
State Highway Agency

About this bridge

I-40 Rampto I-77SB over I-40 is a prestressed concrete stringer/multi-beam or girder carrying I-40 Rampto I-77SB over I-40 in Iredell County, North Carolina. It was built in 2023, so it is 2 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 28,560 vehicles a day, roughly 16% of them trucks, projected to reach 57,120 by 2040. The structure is 2,289 ft (697.6 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-40 Rampto I-77SB
CrossesI-40
Location0.79 Mi. N Mocksville RD
RouteInterstate 40
CountyIredell County
StateNorth Carolina
Coordinates35.809, -80.863
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.9 US tons
Inventory rating64.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans17 (+1 approach)
Design loadHL 93
Structure length2,289 ft (697.6 m)
Longest span136 ft (41.4 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,560 (2018)
Projected traffic57,120 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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-40 Rampto I-77SB over I-40 built?

It was built in 2023, making it 2 years old in 2025.

What condition is I-40 Rampto I-77SB over I-40 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does I-40 Rampto I-77SB over I-40 carry?

About 28,560 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is I-40 Rampto I-77SB over I-40?

The structure is 2,289 ft (697.6 m) long with a longest span of 136 ft (41.4 m) and a deck 42 ft wide.

Who owns I-40 Rampto I-77SB over I-40?

It is owned by the State Highway Agency.