Williamson Dam
South Dakota — Meade County — NINE MILE CREEK
Location
| State | South Dakota |
| County | Meade |
| River | NINE MILE CREEK |
| Coordinates | 44.58666, -103.29166 |
Physical Characteristics
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 460 ft |
| NID Storage | 220 acre-ft |
| Max Storage | 220 acre-ft |
| Surface Area | 23 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1984 |
| Primary Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | MARRS RANCH, LLC |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.