US Bridges

NC751 over I40

Good

Durham County, North Carolina · 1.1 MI.S.JCT.NC54 · Structure no. 000000000630305

Built
1986
39 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
189 ft
2 main spans
Daily traffic
14,500
2021 count
Owner
State
State Highway Agency

About this bridge

NC751 over I40 is a steel stringer/multi-beam or girder carrying NC751 over I40 in Durham County, North Carolina. It was built in 1986, so it is 39 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,500 vehicles a day, roughly 6% of them trucks, projected to reach 29,000 by 2040. The structure is 189 ft (57.6 m) long and 84 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesNC751
CrossesI40
Location1.1 MI.S.JCT.NC54
RouteState Highway 751
Coordinates35.90396, -78.96003
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
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 rating99 US tons
Inventory rating70 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length189 ft (57.6 m)
Longest span98 ft (29.8 m)
Deck width84 ft (25.5 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2021)
Projected traffic29,000 by 2040
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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 NC751 over I40 built?

It was built in 1986, making it 39 years old in 2025.

What condition is NC751 over I40 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 August 2023.

How much traffic does NC751 over I40 carry?

About 14,500 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is NC751 over I40?

The structure is 189 ft (57.6 m) long with a longest span of 98 ft (29.8 m) and a deck 84 ft wide.

Who owns NC751 over I40?

It is owned by the State Highway Agency.