US Bridges

US 1 over Horse Creek

Fair

Aiken County, South Carolina · Granitville · Structure no. 000000000001663

Built
1950
75 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete
Length
240 ft
8 main spans
Daily traffic
26,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 1 over Horse Creek is a concrete tee beam carrying US 1 over Horse Creek in Aiken County, South Carolina. It was built in 1950, so it is 75 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 26,500 vehicles a day, roughly 4% of them trucks, projected to reach 29,150 by 2043. The structure is 240 ft (73.2 m) long and 59 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 1
CrossesHorse Creek
LocationGranitville
RouteU.S. Route 1
CountyAiken County
StateSouth Carolina
Coordinates33.5532, -81.8151
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 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 rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span30 ft (9.1 m)
Deck width59 ft (18.1 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,500 (2023)
Projected traffic29,150 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 US 1 over Horse Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is US 1 over Horse Creek 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 US 1 over Horse Creek carry?

About 26,500 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 1 over Horse Creek?

The structure is 240 ft (73.2 m) long with a longest span of 30 ft (9.1 m) and a deck 59 ft wide.

Who owns US 1 over Horse Creek?

It is owned by the State Highway Agency.