US Bridges

SR 40 over ST Marys River Trib.

Good

Charlton County, Georgia · 4 MI E of Folkston · Structure no. 000000004900280

Built
1936
89 years old, rebuilt 2003
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
3,780
2024 count
Owner
State
State Highway Agency

About this bridge

SR 40 over ST Marys River Trib. is a concrete culvert carrying SR 40 over ST Marys River Trib. in Charlton County, Georgia. It was built in 1936 and reconstructed in 2003, so it is 89 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 3,780 vehicles a day, roughly 9% of them trucks, projected to reach 4,845 by 2032. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 31.7 mi (51 km).

CarriesSR 40
CrossesST Marys River Trib.
Location4 MI E of Folkston
RouteState Highway 40
StateGeorgia
Coordinates30.85197, -81.94373
Functional classRural Minor Arterial

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 evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,780 (2024)
Projected traffic4,845 by 2032
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$217,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 40 over ST Marys River Trib. built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2003.

What condition is SR 40 over ST Marys River Trib. 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 SR 40 over ST Marys River Trib. carry?

About 3,780 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 40 over ST Marys River Trib.?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns SR 40 over ST Marys River Trib.?

It is owned by the State Highway Agency.