Ray Martinmaas Dam
South Dakota — Hand County — Matter Creek
Location
| State | South Dakota |
| County | Hand |
| River | Matter Creek |
| Coordinates | 44.84846, -99.14057 |
Physical Characteristics
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 388 ft |
| NID Storage | 86 acre-ft |
| Max Storage | 86 acre-ft |
| Surface Area | 8 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 2022 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Ray Martinmaas |
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.