US Bridges

S-12-335 over Rocky Creek

FairPosted for load

Chester County, South Carolina · 4.6 MI E Chester · Structure no. 000000000005683

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
90 ft
6 main spans
Daily traffic
1,700
2023 count
Owner
State
State Highway Agency

About this bridge

S-12-335 over Rocky Creek is a concrete slab carrying S-12-335 over Rocky Creek in Chester County, South Carolina. It was built in 1970, so it is 55 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 6 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 1,700 vehicles a day, roughly 8% of them trucks, projected to reach 2,482 by 2043. The structure is 90 ft (27.4 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS-12-335
CrossesRocky Creek
Location4.6 MI E Chester
RouteState Highway 335
CountyChester County
StateSouth Carolina
Coordinates34.69917, -81.13556
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadH 10
Structure length90 ft (27.4 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,482 by 2043
Trucks8%
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-12-335 over Rocky Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is S-12-335 over Rocky 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 January 2025.

How much traffic does S-12-335 over Rocky Creek carry?

About 1,700 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-12-335 over Rocky Creek?

The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-12-335 over Rocky Creek?

It is owned by the State Highway Agency.