US Bridges

SR1310 over Jenkins Swamp

FairPosted for load

Onslow County, North Carolina · 0.3 Mi. E. Jct. SR1003 · Structure no. 000000001330144

Built
1956
69 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
35 ft
2 main spans
Daily traffic
100
2022 count
Owner
State
State Highway Agency

About this bridge

SR1310 over Jenkins Swamp is a wood or timber stringer/multi-beam or girder carrying SR1310 over Jenkins Swamp in Onslow County, North Carolina. It was built in 1956, so it is 69 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 6% of them trucks, projected to reach 200 by 2040. The structure is 35 ft (10.6 m) long and 27 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1310
CrossesJenkins Swamp
Location0.3 Mi. E. Jct. SR1003
RouteState Highway 1310
CountyOnslow County
StateNorth Carolina
Coordinates34.91586, -77.52088
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length35 ft (10.6 m)
Longest span17 ft (5.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic200 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1310 over Jenkins Swamp built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR1310 over Jenkins 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 March 2024.

How much traffic does SR1310 over Jenkins Swamp carry?

About 100 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1310 over Jenkins Swamp?

The structure is 35 ft (10.6 m) long with a longest span of 17 ft (5.1 m) and a deck 27 ft wide.

Who owns SR1310 over Jenkins Swamp?

It is owned by the State Highway Agency.