US Bridges

US 601 over Antley Spring Creek

Good

Calhoun County, South Carolina · 2 MI S of ST Matthews · Structure no. 000000000000387

Built
1930
95 years old, rebuilt 1965
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,700
2023 count
Owner
State
State Highway Agency

About this bridge

US 601 over Antley Spring Creek is a concrete culvert carrying US 601 over Antley Spring Creek in Calhoun County, South Carolina. It was built in 1930 and reconstructed in 1965, so it is 95 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,700 vehicles a day, roughly 12% of them trucks, projected to reach 9,918 by 2043. The structure is 21 ft (6.3 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 601
CrossesAntley Spring Creek
Location2 MI S of ST Matthews
RouteU.S. Route 601
Coordinates33.64832, -80.78604
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating22.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width86 ft (26.3 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2023)
Projected traffic9,918 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 601 over Antley Spring Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1965.

What condition is US 601 over Antley Spring 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 July 2024.

How much traffic does US 601 over Antley Spring Creek carry?

About 5,700 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is US 601 over Antley Spring Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 86 ft wide.

Who owns US 601 over Antley Spring Creek?

It is owned by the State Highway Agency.