US Bridges

Sc 12 over Gills Creek

Good

Richland County, South Carolina · Town of Forest Acres · Structure no. 000000000009072

Built
1996
29 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
120 ft
4 main spans
Daily traffic
29,400
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 12 over Gills Creek is a concrete continuous slab carrying Sc 12 over Gills Creek in Richland County, South Carolina. It was built in 1996, so it is 29 years old, younger 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 29,400 vehicles a day, roughly 2% of them trucks, projected to reach 46,158 by 2043. The structure is 120 ft (36.6 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSc 12
CrossesGills Creek
LocationTown of Forest Acres
RouteState Highway 12
Coordinates34.01873, -80.96368
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width78 ft (23.8 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,400 (2023)
Projected traffic46,158 by 2043
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 12 over Gills Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Sc 12 over Gills Creek 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 December 2023.

How much traffic does Sc 12 over Gills Creek carry?

About 29,400 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Sc 12 over Gills Creek?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 78 ft wide.

Who owns Sc 12 over Gills Creek?

It is owned by the State Highway Agency.