Alvin
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Lincoln |
| Nearest City | CANTON |
| River/Stream | NINE MILE CREEK |
| Coordinates | 43.43993, -96.61063 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 600 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 2,150 acre-ft |
| Max Storage | 2,150 acre-ft |
| Normal Storage | 1,288 acre-ft |
| Surface Area | 46 acres |
| Max Discharge | 8,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | GF&P |
| Owner Type | State |
| Hazard Classification | Low |
| Last Inspection | 10/04/2022 |
| Emergency Action Plan | Not Required |