St Josephs Lake Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Sullivan |
| Nearest City | Fowlerville |
| River/Stream | BLACK BROOK |
| Coordinates | 41.59194, -74.71000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 229 ft |
| Year Completed | 1905 (121 years old) |
Storage & Hydraulics
| NID Storage | 2,740 acre-ft |
| Max Storage | 2,740 acre-ft |
| Normal Storage | 1,800 acre-ft |
| Surface Area | 340 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 440 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Joseph Homeowners Association |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/16/2024 |
| Emergency Action Plan | Yes |