US Bridges

I-95 SB over Poccosin Swamp

Fair

Dillon County, South Carolina · 8MI W Latta · Structure no. 000000000005021

Built
1967
58 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
23,150
2023 count
Owner
State
State Highway Agency

About this bridge

I-95 SB over Poccosin Swamp is a concrete tee beam carrying I-95 SB over Poccosin Swamp in Dillon County, South Carolina. It was built in 1967, so it is 58 years old, older than the South Carolina average of 48 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 23,150 vehicles a day, roughly 23% of them trucks, projected to reach 40,513 by 2043. The structure is 150 ft (45.7 m) long and 41 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesI-95 SB
CrossesPoccosin Swamp
Location8MI W Latta
RouteInterstate 95
Coordinates34.32809, -79.5714
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width41 ft (12.4 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,150 (2023)
Projected traffic40,513 by 2043
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-95 SB over Poccosin Swamp built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-95 SB over Poccosin 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 February 2024.

How much traffic does I-95 SB over Poccosin Swamp carry?

About 23,150 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I-95 SB over Poccosin Swamp?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns I-95 SB over Poccosin Swamp?

It is owned by the State Highway Agency.