US Bridges

NC24BUS over Marsh Grove Swamp

Fair

Duplin County, North Carolina · 1.2 MI E JCT SR1376 · Structure no. 000000000610007

Built
1925
100 years old, rebuilt 1955
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
54 ft
2 main spans
Daily traffic
4,200
2021 count
Owner
State
State Highway Agency

About this bridge

NC24BUS over Marsh Grove Swamp is a concrete tee beam carrying NC24BUS over Marsh Grove Swamp in Duplin County, North Carolina. It was built in 1925 and reconstructed in 1955, so it is 100 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 5 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 4,200 vehicles a day, roughly 14% of them trucks, projected to reach 8,400 by 2040. The structure is 54 ft (16.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNC24BUS
CrossesMarsh Grove Swamp
Location1.2 MI E JCT SR1376
RouteState Highway 24
CountyDuplin County
StateNorth Carolina
Coordinates34.96254, -77.99495
Functional classRural Principal Arterial - Other

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating24.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length54 ft (16.4 m)
Longest span26 ft (7.9 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2021)
Projected traffic8,400 by 2040
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC24BUS over Marsh Grove Swamp built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1955.

What condition is NC24BUS over Marsh Grove Swamp 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 August 2023.

How much traffic does NC24BUS over Marsh Grove Swamp carry?

About 4,200 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is NC24BUS over Marsh Grove Swamp?

The structure is 54 ft (16.4 m) long with a longest span of 26 ft (7.9 m) and a deck 31 ft wide.

Who owns NC24BUS over Marsh Grove Swamp?

It is owned by the State Highway Agency.