US Bridges

S-25-50 over Coosawhatchie River

Good

Hampton County, South Carolina · 2MI SW Hampton · Structure no. 000000000006879

Built
1976
49 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
300 ft
10 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 1976, so it is 49 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,150 vehicles a day, roughly 10% of them trucks, projected to reach 1,679 by 2043. The structure is 300 ft (91.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesS-25-50
CrossesCoosawhatchie River
Location2MI SW Hampton
RouteState Highway 50
Coordinates32.81913, -81.10557
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 15
Structure length300 ft (91.4 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 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 1976, making it 49 years old in 2025.

What condition is S-25-50 over Coosawhatchie River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. 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 300 ft (91.4 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns S-25-50 over Coosawhatchie River?

It is owned by the State Highway Agency.