US Bridges

SR1924 over Big Marsh Swamp

Good

Robeson County, North Carolina · 1.2 MI South of NC20 · Structure no. 000000001550059

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Slab
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
2,900
2017 count
Owner
State
State Highway Agency

About this bridge

SR1924 over Big Marsh Swamp is a prestressed concrete slab carrying SR1924 over Big Marsh Swamp in Robeson County, North Carolina. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,900 vehicles a day, roughly 6% of them trucks, projected to reach 5,000 by 2040. The structure is 180 ft (54.8 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR1924
CrossesBig Marsh Swamp
Location1.2 MI South of NC20
RouteState Highway 1924
Coordinates34.78211, -78.92271
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating57 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length180 ft (54.8 m)
Longest span59 ft (17.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2017)
Projected traffic5,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1924 over Big Marsh Swamp built?

It was built in 2018, making it 7 years old in 2025.

What condition is SR1924 over Big Marsh Swamp 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 May 2024.

How much traffic does SR1924 over Big Marsh Swamp carry?

About 2,900 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is SR1924 over Big Marsh Swamp?

The structure is 180 ft (54.8 m) long with a longest span of 59 ft (17.9 m) and a deck 33 ft wide.

Who owns SR1924 over Big Marsh Swamp?

It is owned by the State Highway Agency.