US Bridges

SR1510 over Lanier Swamp

FairPosted for load

Martin County, North Carolina · 0.05 Mi. E. Jct. SR1511 · Structure no. 000000001170048

Built
1965
60 years old, rebuilt 1979
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
720
2017 count
Owner
State
State Highway Agency

About this bridge

SR1510 over Lanier Swamp is a steel stringer/multi-beam or girder carrying SR1510 over Lanier Swamp in Martin County, North Carolina. It was built in 1965 and reconstructed in 1979, so it is 60 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 720 vehicles a day, roughly 6% of them trucks, projected to reach 1,440 by 2040. The structure is 40 ft (12.1 m) long and 20 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1510
CrossesLanier Swamp
Location0.05 Mi. E. Jct. SR1511
RouteState Highway 1510
CountyMartin County
StateNorth Carolina
Coordinates35.79876, -76.93658
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating24.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length40 ft (12.1 m)
Longest span40 ft (12.1 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2017)
Projected traffic1,440 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 SR1510 over Lanier Swamp built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1979.

What condition is SR1510 over Lanier 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 April 2024.

How much traffic does SR1510 over Lanier Swamp carry?

About 720 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is SR1510 over Lanier Swamp?

The structure is 40 ft (12.1 m) long with a longest span of 40 ft (12.1 m) and a deck 20 ft wide.

Who owns SR1510 over Lanier Swamp?

It is owned by the State Highway Agency.