Timmer Dam is an earth dam located in Ottawa County, Michigan, built in 1988. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 180 ft long, taller than 50% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Timmer Dam
The primary purpose of Timmer 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 Co Dc/clifford J. Vanputten (private). It impounds the Tributary to Macatawa River near Zeeland.
The dam stands 25 feet tall and stretches 180 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 117 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1988, the structure is 38 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. The most recent inspection on record was 06/20/2015. That was over 11 years ago.
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Location
| State | Michigan |
| County | Ottawa |
| Nearest City | Zeeland |
| River/Stream | Tributary to Macatawa River |
| Coordinates | 42.83990, -85.91062 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 180 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 117 acre-ft |
| Max Storage | 117 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 612 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Ottawa Co Dc/clifford J. Vanputten |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/20/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI02577 |
| Federal ID | MI02577 |
| More Info | State Dam Safety Program |