US Bridges

SR 121 over Alisons Creek

Good

Appling County, Georgia · 3 MI N of Surrency · Structure no. 000000000100250

Built
1938
87 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
1,250
2024 count
Owner
State
State Highway Agency

About this bridge

SR 121 over Alisons Creek is a concrete culvert carrying SR 121 over Alisons Creek in Appling County, Georgia. It was built in 1938, so it is 87 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 1,250 vehicles a day, roughly 31% of them trucks, projected to reach 1,080 by 2031. The structure is 29 ft (8.8 m) long and 35 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesSR 121
CrossesAlisons Creek
Location3 MI N of Surrency
RouteState Highway 121
StateGeorgia
Coordinates31.77038, -82.16048
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating33 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2024)
Projected traffic1,080 by 2031
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$170,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 121 over Alisons Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is SR 121 over Alisons 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 January 2025.

How much traffic does SR 121 over Alisons Creek carry?

About 1,250 vehicles per day (2024 count), of which roughly 31% are trucks.

How long is SR 121 over Alisons Creek?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m) and a deck 35 ft wide.

Who owns SR 121 over Alisons Creek?

It is owned by the State Highway Agency.