Grindstone River
Significant HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | Minnesota |
| County | Pine |
| Nearest City | Hinkley |
| River/Stream | GRINDSTONE RIVER |
| Coordinates | 46.02078, -92.94306 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 23 ft |
| Dam Height | 18 ft |
| Dam Length | 58 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 428 acre-ft |
| Max Storage | 428 acre-ft |
| Normal Storage | 305 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 95 sq mi |
| Max Discharge | 1,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNDNR-Fisheries |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 08/12/2020 |
| Emergency Action Plan | Yes |