US Bridges

NC18 over Seaboard RR

Fair

Cleveland County, North Carolina · 0.2 Mi. S. Jct. SR1861 · Structure no. 000000000450057

Built
1957
68 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
5,800
2022 count
Owner
State
State Highway Agency

About this bridge

NC18 over Seaboard RR is a concrete continuous slab carrying NC18 over Seaboard RR in Cleveland County, North Carolina. It was built in 1957, so it is 68 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 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 5,800 vehicles a day, roughly 6% of them trucks, projected to reach 11,600 by 2040. The structure is 71 ft (21.6 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC18
CrossesSeaboard RR
Location0.2 Mi. S. Jct. SR1861
RouteState Highway 18
Coordinates35.29836, -81.53991
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length71 ft (21.6 m)
Longest span23 ft (7 m)
Deck width48 ft (14.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2022)
Projected traffic11,600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 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 NC18 over Seaboard RR built?

It was built in 1957, making it 68 years old in 2025.

What condition is NC18 over Seaboard RR 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 October 2024.

How much traffic does NC18 over Seaboard RR carry?

About 5,800 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is NC18 over Seaboard RR?

The structure is 71 ft (21.6 m) long with a longest span of 23 ft (7 m) and a deck 48 ft wide.

Who owns NC18 over Seaboard RR?

It is owned by the State Highway Agency.