Lower Riley Lake Dam is an earth dam located in Jasper County, Georgia, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall and 850 ft long, taller than 86% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Lower Riley Lake Dam
The primary purpose of Lower Riley Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dnr/wildlife Resources Division (state). It impounds the Unknown near Maxwell.
The dam stands 40 feet tall and stretches 850 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 267 acre-feet, and collects water from a drainage area of 145 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 11/07/2018.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Georgia |
| County | Jasper |
| Nearest City | Maxwell |
| River/Stream | Unknown |
| Coordinates | 33.44861, -83.71944 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 850 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 267 acre-ft |
| Max Storage | 267 acre-ft |
| Normal Storage | 205 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 145 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Dnr/wildlife Resources Division |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/07/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | GA00499 |
| Federal ID | GA00499 |
| More Info | State Dam Safety Program |