Mary Lake Dam is a concrete dam located in Dickinson County, Michigan. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 7 ft7 ft tall and 237 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Mary Lake Dam
Mary Lake Dam is a dam in Dickinson, Michigan. The dam is owned by Waucedah Township (local government). It impounds the Hamilton Creek.
The dam stands 7 feet tall and stretches 237 feet across, creates a reservoir covering 230 acres, has a maximum storage capacity of 764 acre-feet, and collects water from a drainage area of 15 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/11/2017.
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Location
| State | Michigan |
| County | Dickinson |
| River/Stream | Hamilton Creek |
| Coordinates | 45.74854, -87.81702 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 237 ft |
Storage & Hydraulics
| NID Storage | 764 acre-ft |
| Max Storage | 764 acre-ft |
| Normal Storage | 350 acre-ft |
| Surface Area | 230 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 210 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Waucedah Township |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/11/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI01247 |
| Federal ID | MI01247 |
| More Info | State Dam Safety Program |