Steenwyk Dam
Steenwyk Dam is an earth dam located in Ottawa County, Michigan, built in 1990. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Steenwyk Dam
The primary purpose of Steenwyk Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Ottawa County Drain Commissioner (local government). It impounds the Tributary To Macatawa River near Holland.
The dam stands 28 feet tall and stretches 200 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1990, the structure is 36 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 11/25/2019.
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Location
| State | Michigan |
| County | Ottawa |
| Nearest City | Holland |
| River/Stream | Tributary To Macatawa River |
| Coordinates | 42.83869, -85.92121 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 200 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Ottawa County Drain Commissioner |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/25/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI01354 |
| Federal ID | MI01354 |
| More Info | State Dam Safety Program |