Sammons is an earth dam located in Ziebach County, South Dakota, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 1,480 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 Sammons
The primary purpose of Sammons is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by J.b. Sammons (private). It impounds the Tr Moreau.
The dam stands 21 feet tall and stretches 1,480 feet across, and has a maximum storage capacity of 541 acre-feet. Completed in 1967, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Ziebach |
| Nearest City | None |
| River/Stream | Tr Moreau |
| Coordinates | 45.20333, -101.56166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 1,480 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 541 acre-ft |
| Max Storage | 541 acre-ft |
| Normal Storage | 352 acre-ft |
| Max Discharge | 6,000 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | J.b. Sammons |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00504 |
| Federal ID | SD00504 |
| More Info | State Dam Safety Program |