Elmhirst Creek Dam is an earth dam located in Mackinac County, Michigan, built in 1991. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 356 ft long. 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 Elmhirst Creek Dam
The primary purpose of Elmhirst Creek Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Usda Fs (federal). It impounds the Elmhirst Creek near Allenvile.
The dam stands 18 feet tall and stretches 356 feet across, creates a reservoir covering 110 acres, has a maximum storage capacity of 580 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1991, the structure is 35 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 11/04/2020.
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Location
| State | Michigan |
| County | Mackinac |
| Nearest City | Allenvile |
| River/Stream | Elmhirst Creek |
| Coordinates | 46.12201, -84.70146 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 16 ft |
| Dam Length | 356 ft |
| Year Completed | 1991 (35 years old) |
Storage & Hydraulics
| NID Storage | 580 acre-ft |
| Max Storage | 580 acre-ft |
| Normal Storage | 367 acre-ft |
| Surface Area | 110 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 103 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/04/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00818 |
| Federal ID | MI00818 |
| More Info | State Dam Safety Program |