Sammons No.2 is an earth dam located in Ziebach County, South Dakota, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 240 ft long, taller than 59% 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 Sammons No.2
The primary purpose of Sammons No.2 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Dean Decher (private). It impounds the Tr Moreau.
The dam stands 27 feet tall and stretches 240 feet across, and has a maximum storage capacity of 146 acre-feet. Completed in 1958, 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 | South Dakota |
| County | Ziebach |
| Nearest City | None |
| River/Stream | Tr Moreau |
| Coordinates | 45.21333, -101.57166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 240 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 146 acre-ft |
| Max Storage | 146 acre-ft |
| Normal Storage | 25 acre-ft |
| Max Discharge | 3,965 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Dean Decher |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01802 |
| Federal ID | SD01802 |
| More Info | State Dam Safety Program |