US Bridges

C-39-34 over Adam Creek

GoodPosted for load

Pickens County, South Carolina · 8MI NE of Pickens · Structure no. 000000000009253

Built
1997
28 years old
Condition
Good
inspected March 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

C-39-34 over Adam Creek is a prestressed concrete slab carrying C-39-34 over Adam Creek in Pickens County, South Carolina. It was built in 1997, so it is 28 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. 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 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesC-39-34
CrossesAdam Creek
Location8MI NE of Pickens
RouteCounty Highway 34
Coordinates34.98819, -82.65628
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34 US tons
Inventory rating16.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width25 ft (7.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic256 by 2043
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$129,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-39-34 over Adam Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is C-39-34 over Adam 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-39-34 over Adam Creek carry?

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

How long is C-39-34 over Adam Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns C-39-34 over Adam Creek?

It is owned by the County Highway Agency.