US Bridges

S-25-50 over Coosawhatchie River

Fair

Hampton County, South Carolina · 2MI SW Varnville · Structure no. 000000000006501

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
210 ft
14 main spans
Daily traffic
1,150
2023 count
Owner
State
State Highway Agency

About this bridge

S-25-50 over Coosawhatchie River is a concrete slab carrying S-25-50 over Coosawhatchie River in Hampton County, South Carolina. It was built in 1974, so it is 51 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 5 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 1,150 vehicles a day, roughly 10% of them trucks, projected to reach 1,679 by 2043. The structure is 210 ft (64 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesS-25-50
CrossesCoosawhatchie River
Location2MI SW Varnville
RouteState Highway 50
Coordinates32.82359, -81.10176
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating46.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans14
Design loadH 15
Structure length210 ft (64 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2023)
Projected traffic1,679 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 S-25-50 over Coosawhatchie River built?

It was built in 1974, making it 51 years old in 2025.

What condition is S-25-50 over Coosawhatchie River 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 2023.

How much traffic does S-25-50 over Coosawhatchie River carry?

About 1,150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is S-25-50 over Coosawhatchie River?

The structure is 210 ft (64 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-25-50 over Coosawhatchie River?

It is owned by the State Highway Agency.