Petranek #1
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Mellette |
| Nearest City | NONE |
| River/Stream | LITTLE WHITE RIVER-TR |
| Coordinates | 43.55316, -100.72929 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 1,174 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 376 acre-ft |
| Max Storage | 376 acre-ft |
| Normal Storage | 319 acre-ft |
| Max Discharge | 1,780 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | S&PL |
| Owner Type | State |
| Hazard Classification | Low |
| Last Inspection | 09/27/2023 |
| Emergency Action Plan | Not Required |