US Bridges

C-24-485 over Little Cowhead Ck

FairPosted for load

Greenwood County, South Carolina · 7.3 MI SW of Gwd · Structure no. 000000000006690

Built
1975
50 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

C-24-485 over Little Cowhead Ck is a concrete slab carrying C-24-485 over Little Cowhead Ck in Greenwood County, South Carolina. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 256 by 2043. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesC-24-485
CrossesLittle Cowhead Ck
Location7.3 MI SW of Gwd
RouteCounty Highway 485
Coordinates34.08629, -82.18403
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.
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 10
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic256 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$58,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-24-485 over Little Cowhead Ck built?

It was built in 1975, making it 50 years old in 2025.

What condition is C-24-485 over Little Cowhead Ck 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 2024.

How much traffic does C-24-485 over Little Cowhead Ck carry?

About 200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-24-485 over Little Cowhead Ck?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns C-24-485 over Little Cowhead Ck?

It is owned by the County Highway Agency.