US Bridges

C-39-6975 over Rocky Bottom Creek

Good

Pickens County, South Carolina · 18 MI NW of Pickens · Structure no. 000000000009643

Built
2008
17 years old
Condition
Good
inspected March 2024
Type
Slab
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

C-39-6975 over Rocky Bottom Creek is a prestressed concrete slab carrying C-39-6975 over Rocky Bottom Creek in Pickens County, South Carolina. It was built in 2008, so it is 17 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 64 by 2043. The structure is 60 ft (18.3 m) long and 15 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesC-39-6975
CrossesRocky Bottom Creek
Location18 MI NW of Pickens
RouteCounty Highway 6975
Coordinates35.00813, -82.82535
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
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 rating66.5 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width15 ft (4.6 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic64 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$198,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-39-6975 over Rocky Bottom Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is C-39-6975 over Rocky Bottom 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 March 2024.

How much traffic does C-39-6975 over Rocky Bottom Creek carry?

About 50 vehicles per day (2023 count).

How long is C-39-6975 over Rocky Bottom Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 15 ft wide.

Who owns C-39-6975 over Rocky Bottom Creek?

It is owned by the County Highway Agency.