Big Stone Lake
Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Minnesota |
| County | Big Stone |
| Nearest City | Ortonville |
| River/Stream | Minnesota River |
| Coordinates | 45.29695, -96.44879 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 6,300 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 205,000 acre-ft |
| Max Storage | 205,000 acre-ft |
| Normal Storage | 100,880 acre-ft |
| Surface Area | 12,094 acres |
| Drainage Area | 1,182 sq mi |
| Max Discharge | 5,600 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNDNR;UMRWS |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/20/2023 |
| Emergency Action Plan | Not Required |