Southmark Lake Dam, also known as Hallmark Lake Dam, is a privately owned earth dam located in Dawsonville, Georgia.
Wind
Humidity
Built in 1940, the dam stands at a height of 46 feet and has a hydraulic height of 38 feet, with a length of 267 feet. With a primary purpose of recreation, the dam boasts a storage capacity of 325 acre-feet and a normal storage level of 251 acre-feet, serving a drainage area of 630 acres.
Despite not being regulated by the state, Southmark Lake Dam poses a moderate risk, with an undetermined hazard potential. The dam features an uncontrolled spillway and outlet gates, with an unlisted foundation type. While the condition of the dam is not rated and there is no current risk management plan in place, the dam continues to provide recreational opportunities in the area. As a significant water resource in the region, Southmark Lake Dam offers a glimpse into the intersection of human infrastructure and natural ecosystems, making it a subject of interest for water resource and climate enthusiasts.
Year Completed |
1940 |
Dam Length |
267 |
Dam Height |
46 |
River Or Stream |
UNKNOWN |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
38 |
Drainage Area |
630 |
Nid Storage |
325 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Undetermined |
Foundations |
Unlisted/Unknown |
Nid Height |
46 |
Amicalola Creek Near Dawsonville
|
112cfs |
Fausett Creek Near Talking Rock
|
19cfs |
Cartecay River Near Ellijay
|
181cfs |
Coosawattee River Near Ellijay
|
311cfs |
Etowah River At Ga 9
|
178cfs |
Talking Rock Creek Near Hinton
|
84cfs |
| Location | Reservations | Toilets |
|---|---|---|
Rocky Ford Campsite
|
||
Amicalola Falls State Park
|
||
Amicalola Mountain
|