Forestville is an earth dam located in Door County, Wisconsin, built in 1877. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 10 ft10 ft tall and 1,200 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 Forestville
The primary purpose of Forestville is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Door County (local government). It impounds the Ahnapee River near Forestville.
The dam stands 10 feet tall and stretches 1,200 feet across, creates a reservoir covering 72 acres, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 31 square miles. Completed in 1877, the structure is over a century 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/22/2018.
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Location
| State | Wisconsin |
| County | Door |
| Nearest City | Forestville |
| River/Stream | Ahnapee River |
| Coordinates | 44.69321, -87.49062 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1877 (149 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 72 acres |
| Drainage Area | 31 sq mi |
| Max Discharge | 1,820 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Door County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/22/2018 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00256 |
| Federal ID | WI00256 |
| More Info | State Dam Safety Program |