US Bridges

US 1 / SR 4 over Clay Branch

Good

Charlton County, Georgia · 1 MI N of Folkston · Structure no. 000000004900060

Built
1955
70 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
10,500
2024 count
Owner
State
State Highway Agency

About this bridge

US 1 / SR 4 over Clay Branch is a concrete culvert carrying US 1 / SR 4 over Clay Branch in Charlton County, Georgia. It was built in 1955, so it is 70 years old, older than the Georgia average of 47.5 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 10,500 vehicles a day, roughly 1% of them trucks, projected to reach 16,125 by 2032. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 1 / SR 4
CrossesClay Branch
Location1 MI N of Folkston
RouteU.S. Route 1
StateGeorgia
Coordinates30.85048, -82.00892
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.9 US tons
Inventory rating23.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length25 ft (7.6 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2024)
Projected traffic16,125 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$226,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 1 / SR 4 over Clay Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is US 1 / SR 4 over Clay Branch 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 June 2023.

How much traffic does US 1 / SR 4 over Clay Branch carry?

About 10,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is US 1 / SR 4 over Clay Branch?

The structure is 25 ft (7.6 m) long with a longest span of 7 ft (2.1 m).

Who owns US 1 / SR 4 over Clay Branch?

It is owned by the State Highway Agency.