Sharon Mills Dam is a concrete dam located in Washtenaw County, Michigan, built in 1930. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 365 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 Sharon Mills Dam
The primary purpose of Sharon Mills Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Washtenaw County Parks & Rec Comm (local government). It impounds the River Raisin near Manchester.
The dam stands 10 feet tall and stretches 365 feet across, creates a reservoir covering 46 acres, has a maximum storage capacity of 260 acre-feet, and collects water from a drainage area of 128 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
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 10/09/2017.
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Location
| State | Michigan |
| County | Washtenaw |
| Nearest City | Manchester |
| River/Stream | River Raisin |
| Coordinates | 42.17679, -84.09297 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 365 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 260 acre-ft |
| Max Storage | 260 acre-ft |
| Normal Storage | 120 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 128 sq mi |
| Max Discharge | 1,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Washtenaw County Parks & Rec Comm |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/09/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00328 |
| Federal ID | MI00328 |
| More Info | State Dam Safety Program |