Mill Creek Dam
Mill Creek Dam is an other dam located in Cheboygan County, Michigan, built in 1984. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Mill Creek Dam
The primary purpose of Mill Creek Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Mackinac Island State Park Comm (state). It impounds the Mill Creek near Mackinaw City.
The dam stands 11 feet tall and stretches 29 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 5 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1984, the structure is 42 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/22/2011. That was over 14 years ago.
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Location
| State | Michigan |
| County | Cheboygan |
| Nearest City | Mackinaw City |
| River/Stream | Mill Creek |
| Coordinates | 45.74250, -84.66778 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 29 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 5 acre-ft |
| Max Storage | 5 acre-ft |
| Normal Storage | 4 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 240 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Mackinac Island State Park Comm |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/22/2011 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI01513 |
| Federal ID | MI01513 |
| More Info | State Dam Safety Program |