Lake St Helen Lake Level Control
Low HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Michigan |
| County | Roscommon |
| Nearest City | Geels |
| River/Stream | South Branch Au Sable River |
| Coordinates | 44.40833, -84.46333 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 200 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 7,700 acre-ft |
| Max Storage | 7,700 acre-ft |
| Normal Storage | 3,360 acre-ft |
| Surface Area | 2,400 acres |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Roscommon County |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/15/2019 |
| Emergency Action Plan | Not Required |