US Bridges

SR1307 over Nahunga Swamp

PoorPosted for load

Duplin County, North Carolina · 0.8 Mi.W JCT.SR1004 · Structure no. 000000000610107

Built
1953
72 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
53 ft
3 main spans
Daily traffic
550
2019 count
Owner
State
State Highway Agency

About this bridge

SR1307 over Nahunga Swamp is a wood or timber stringer/multi-beam or girder carrying SR1307 over Nahunga Swamp in Duplin County, North Carolina. It was built in 1953, so it is 72 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 550 vehicles a day, roughly 6% of them trucks, projected to reach 1,100 by 2040. The structure is 53 ft (16.1 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1307
CrossesNahunga Swamp
Location0.8 Mi.W JCT.SR1004
RouteState Highway 1307
Coordinates35.04673, -77.95413
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating32 US tons
Inventory rating20 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length53 ft (16.1 m)
Longest span17 ft (5.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2019)
Projected traffic1,100 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1307 over Nahunga Swamp built?

It was built in 1953, making it 72 years old in 2025.

What condition is SR1307 over Nahunga Swamp in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does SR1307 over Nahunga Swamp carry?

About 550 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1307 over Nahunga Swamp?

The structure is 53 ft (16.1 m) long with a longest span of 17 ft (5.1 m) and a deck 27 ft wide.

Who owns SR1307 over Nahunga Swamp?

It is owned by the State Highway Agency.