US Bridges

I40 Wbl over Seaboard Coastline RR

Fair

Duplin County, North Carolina · 0.2 Mi. W. Jct. NC24 · Structure no. 000000000610435

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
146 ft
3 main spans
Daily traffic
10,750
2020 count
Owner
State
State Highway Agency

About this bridge

I40 Wbl over Seaboard Coastline RR is a prestressed concrete stringer/multi-beam or girder carrying I40 Wbl over Seaboard Coastline RR in Duplin County, North Carolina. It was built in 1987, so it is 38 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 10,750 vehicles a day, roughly 23% of them trucks, projected to reach 21,500 by 2040. The structure is 146 ft (44.5 m) long and 51 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI40 Wbl
CrossesSeaboard Coastline RR
Location0.2 Mi. W. Jct. NC24
RouteInterstate 40
CountyDuplin County
StateNorth Carolina
Coordinates34.99746, -78.1333
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length146 ft (44.5 m)
Longest span51 ft (15.5 m)
Deck width51 ft (15.6 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,750 (2020)
Projected traffic21,500 by 2040
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 I40 Wbl over Seaboard Coastline RR built?

It was built in 1987, making it 38 years old in 2025.

What condition is I40 Wbl over Seaboard Coastline 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 September 2023.

How much traffic does I40 Wbl over Seaboard Coastline RR carry?

About 10,750 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I40 Wbl over Seaboard Coastline RR?

The structure is 146 ft (44.5 m) long with a longest span of 51 ft (15.5 m) and a deck 51 ft wide.

Who owns I40 Wbl over Seaboard Coastline RR?

It is owned by the State Highway Agency.