Shannon Lake Dam is an earth dam located in Monroe County, Alabama, built in 1969. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 360 ft long. 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 Shannon Lake Dam
The primary purpose of Shannon Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Shannon Co (private). It impounds the Tr-big Flat Creek near River Ridge Community.
The dam stands 23 feet tall and stretches 360 feet across, and has a maximum storage capacity of 59 acre-feet. Completed in 1969, 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.
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Location
| State | Alabama |
| County | Monroe |
| Nearest City | River Ridge Community |
| River/Stream | Tr-big Flat Creek |
| Coordinates | 31.77333, -87.30167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Length | 360 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 53 acre-ft |
| Max Discharge | 864 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | John Shannon Co |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | AL01398 |
| Federal ID | AL01398 |
| More Info | ASDSO on Alabama (no state dam safety program) |