US Bridges

NC78 over Seaboard Coastline RR

Good

Lee County, North Carolina · 0.42 Mi. W. Jct. SR1122 · Structure no. 000000001050019

Built
2001
24 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
190 ft
3 main spans
Daily traffic
14,500
2021 count
Owner
State
State Highway Agency

About this bridge

NC78 over Seaboard Coastline RR is a steel continuous stringer/multi-beam or girder carrying NC78 over Seaboard Coastline RR in Lee County, North Carolina. It was built in 2001, so it is 24 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 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 190 ft (57.9 m) long and 42 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesNC78
CrossesSeaboard Coastline RR
Location0.42 Mi. W. Jct. SR1122
RouteState Highway 78
Coordinates35.4433, -79.17691
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length190 ft (57.9 m)
Longest span69 ft (21 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2021)
Projected traffic29,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NC78 over Seaboard Coastline RR built?

It was built in 2001, making it 24 years old in 2025.

What condition is NC78 over Seaboard Coastline RR 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 NC78 over Seaboard Coastline RR carry?

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

How long is NC78 over Seaboard Coastline RR?

The structure is 190 ft (57.9 m) long with a longest span of 69 ft (21 m) and a deck 42 ft wide.

Who owns NC78 over Seaboard Coastline RR?

It is owned by the State Highway Agency.