Middleville
Middleville is a gravity dam located in Barry County, Michigan, built in 1940. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Middleville
The primary purpose of Middleville is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the Thornapple River near Middleville.
The dam stands 15 feet tall and stretches 166 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 270 acre-feet, and collects water from a drainage area of 557 square miles. Completed in 1940, 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 07/15/2021.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Michigan |
| County | Barry |
| Nearest City | Middleville |
| River/Stream | Thornapple River |
| Coordinates | 42.71122, -85.46561 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 166 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 270 acre-ft |
| Max Storage | 270 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 557 sq mi |
| Max Discharge | 3,200 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/15/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00543 |
| Federal ID | MI00543 |
| More Info | State Dam Safety Program |