US Bridges

SR1780 over Little Raft Swamp

Fair

Robeson County, North Carolina · 0.3 Mi. E. Jct. NC211 · Structure no. 000000001550314

Built
1996
29 years old
Condition
Fair
inspected January 2025
Type
Slab
Prestressed Concrete
Length
92 ft
2 main spans
Daily traffic
1,900
2022 count
Owner
State
State Highway Agency

About this bridge

SR1780 over Little Raft Swamp is a prestressed concrete slab carrying SR1780 over Little Raft Swamp in Robeson County, North Carolina. It was built in 1996, so it is 29 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 1,900 vehicles a day, roughly 6% of them trucks, projected to reach 3,800 by 2040. The structure is 92 ft (28 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1780
CrossesLittle Raft Swamp
Location0.3 Mi. E. Jct. NC211
RouteState Highway 1780
Coordinates34.82193, -79.17831
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating50.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length92 ft (28 m)
Longest span44 ft (13.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2022)
Projected traffic3,800 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1780 over Little Raft Swamp built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR1780 over Little Raft 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 January 2025.

How much traffic does SR1780 over Little Raft Swamp carry?

About 1,900 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1780 over Little Raft Swamp?

The structure is 92 ft (28 m) long with a longest span of 44 ft (13.4 m) and a deck 33 ft wide.

Who owns SR1780 over Little Raft Swamp?

It is owned by the State Highway Agency.