US Bridges

US 601 over Flat Creek

Fair

Lancaster County, South Carolina · 10.7 MI N of Kershaw · Structure no. 000000000004584

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
180 ft
6 main spans
Daily traffic
1,750
2023 count
Owner
State
State Highway Agency

About this bridge

US 601 over Flat Creek is a concrete tee beam carrying US 601 over Flat Creek in Lancaster County, South Carolina. It was built in 1965, so it is 60 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.

It carries about 1,750 vehicles a day, roughly 26% of them trucks, projected to reach 2,783 by 2043. The structure is 180 ft (54.9 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 601
CrossesFlat Creek
Location10.7 MI N of Kershaw
RouteU.S. Route 601
CountyLancaster County
StateSouth Carolina
Coordinates34.65194, -80.51583
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating54.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2023)
Projected traffic2,783 by 2043
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$975,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 601 over Flat Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 601 over Flat 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 September 2024.

How much traffic does US 601 over Flat Creek carry?

About 1,750 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is US 601 over Flat Creek?

The structure is 180 ft (54.9 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns US 601 over Flat Creek?

It is owned by the State Highway Agency.