Rainbow Lake Dam
Significant HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Michigan |
| County | Gratiot |
| Nearest City | Maple Rapids |
| River/Stream | Pine Creek |
| Coordinates | 43.12333, -84.69833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 5,400 acre-ft |
| Max Storage | 5,400 acre-ft |
| Normal Storage | 4,000 acre-ft |
| Surface Area | 238 acres |
| Drainage Area | 84 sq mi |
| Max Discharge | 4,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Rainbow Lakes Maintenance Corp. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/20/2019 |
| Emergency Action Plan | Yes |