US Bridges

S-35-47 over Crooked Creek

Fair

Marlboro County, South Carolina · At Lake Wallace in Benn · Structure no. 000000000008371

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
2,500
2023 count
Owner
State
State Highway Agency

About this bridge

S-35-47 over Crooked Creek is a prestressed concrete slab carrying S-35-47 over Crooked Creek in Marlboro County, South Carolina. It was built in 1990, so it is 35 years old, younger 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.

It carries about 2,500 vehicles a day, roughly 9% of them trucks, projected to reach 3,525 by 2043. The structure is 120 ft (36.6 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS-35-47
CrossesCrooked Creek
LocationAt Lake Wallace in Benn
RouteState Highway 47
CountyMarlboro County
StateSouth Carolina
Coordinates34.64747, -79.67321
Functional classUrban 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.6 US tons
Inventory rating55.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+6 approach)
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic3,525 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-35-47 over Crooked Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is S-35-47 over Crooked 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 March 2023.

How much traffic does S-35-47 over Crooked Creek carry?

About 2,500 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-35-47 over Crooked Creek?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.

Who owns S-35-47 over Crooked Creek?

It is owned by the State Highway Agency.