US Bridges

S-27-424 over Coosawhatchie River

Fair

Jasper County, South Carolina · @ Coosawhatchie · Structure no. 000000000001193

Built
1922
103 years old, rebuilt 1956
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete
Length
176 ft
8 main spans
Daily traffic
25
2023 count
Owner
State
State Highway Agency

About this bridge

S-27-424 over Coosawhatchie River is a concrete tee beam carrying S-27-424 over Coosawhatchie River in Jasper County, South Carolina. It was built in 1922 and reconstructed in 1956, so it is 103 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 25 vehicles a day, roughly 5% of them trucks, projected to reach 32 by 2043. The structure is 176 ft (53.6 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-27-424
CrossesCoosawhatchie River
Location@ Coosawhatchie
RouteState Highway 424
Coordinates32.58921, -80.92658
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadUnknown
Structure length176 ft (53.6 m)
Longest span22 ft (6.7 m)
Deck width69 ft (20.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic32 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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-27-424 over Coosawhatchie River built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1956.

What condition is S-27-424 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 January 2025.

How much traffic does S-27-424 over Coosawhatchie River carry?

About 25 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-27-424 over Coosawhatchie River?

The structure is 176 ft (53.6 m) long with a longest span of 22 ft (6.7 m) and a deck 69 ft wide.

Who owns S-27-424 over Coosawhatchie River?

It is owned by the State Highway Agency.