Mammoth Springs Dam 1 is an earth dam located in Fulton County, Arkansas, built in 1885. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 512 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 Mammoth Springs Dam 1
The primary purpose of Mammoth Springs Dam 1 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Arkansas Parks and Tourism (state). It impounds the Spring River near Mammoth Springs.
The dam stands 20 feet tall and stretches 512 feet across, and has a maximum storage capacity of 60 acre-feet. Completed in 1885, the structure is over a century 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 | Arkansas |
| County | Fulton |
| Nearest City | Mammoth Springs |
| River/Stream | Spring River |
| Coordinates | 36.49500, -91.53500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Length | 512 ft |
| Year Completed | 1885 (141 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 40 acre-ft |
| Max Discharge | 6,500 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Arkansas Parks and Tourism |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR01156 |
| Federal ID | AR01156 |
| More Info | State Dam Safety Program |