US Bridges

NC71 over Little Marsh Swamp

Fair

Robeson County, North Carolina · 0.2 MI N. of JCT SR1709 · Structure no. 000000001550092

Built
1931
94 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
28 ft
3 main spans
Daily traffic
5,700
2022 count
Owner
State
State Highway Agency

About this bridge

NC71 over Little Marsh Swamp is a concrete continuous culvert carrying NC71 over Little Marsh Swamp in Robeson County, North Carolina. It was built in 1931, so it is 94 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 5,700 vehicles a day, roughly 7% of them trucks, projected to reach 11,400 by 2040. The structure is 28 ft (8.5 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNC71
CrossesLittle Marsh Swamp
Location0.2 MI N. of JCT SR1709
RouteState Highway 71
CountyRobeson County
StateNorth Carolina
Coordinates34.8931, -79.0631
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length28 ft (8.5 m)
Longest span9 ft (2.7 m)
Deck width35 ft (10.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2022)
Projected traffic11,400 by 2040
Trucks7%
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 NC71 over Little Marsh Swamp built?

It was built in 1931, making it 94 years old in 2025.

What condition is NC71 over Little Marsh 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 November 2024.

How much traffic does NC71 over Little Marsh Swamp carry?

About 5,700 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC71 over Little Marsh Swamp?

The structure is 28 ft (8.5 m) long with a longest span of 9 ft (2.7 m) and a deck 35 ft wide.

Who owns NC71 over Little Marsh Swamp?

It is owned by the State Highway Agency.