US Bridges

SR 15- SR 78 over Alligator Creek

Good

Treutlen County, Georgia · 5.1 MI N of Soperton · Structure no. 000000028300570

Built
1990
35 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
1,770
2024 count
Owner
State
State Highway Agency

About this bridge

SR 15- SR 78 over Alligator Creek is a concrete culvert carrying SR 15- SR 78 over Alligator Creek in Treutlen County, Georgia. It was built in 1990, so it is 35 years old, younger 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 1,770 vehicles a day, roughly 19% of them trucks, projected to reach 2,190 by 2032. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesSR 15- SR 78
CrossesAlligator Creek
Location5.1 MI N of Soperton
RouteState Highway 15
StateGeorgia
Coordinates32.45104, -82.60513
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 inspectionJuly 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 rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,770 (2024)
Projected traffic2,190 by 2032
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$176,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 15- SR 78 over Alligator Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR 15- SR 78 over Alligator 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 2023.

How much traffic does SR 15- SR 78 over Alligator Creek carry?

About 1,770 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is SR 15- SR 78 over Alligator Creek?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m).

Who owns SR 15- SR 78 over Alligator Creek?

It is owned by the State Highway Agency.