Ray Martinmaas Dam
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Hand |
| River/Stream | Matter Creek |
| Coordinates | 44.84846, -99.14057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 388 ft |
| Year Completed | 2022 (4 years old) |
Storage & Hydraulics
| NID Storage | 86 acre-ft |
| Max Storage | 86 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 990 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Ray Martinmaas |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |