Peacock
Peacock is a gravity dam located in Waukesha County, Wisconsin, built in 1840. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Peacock
The primary purpose of Peacock is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Oconomowoc (local government). It impounds the Oconomowoc near Oconomowoc.
The dam stands 11 feet tall and stretches 150 feet across, creates a reservoir covering 78 acres, has a maximum storage capacity of 630 acre-feet, and collects water from a drainage area of 88 square miles. Completed in 1840, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 | Wisconsin |
| County | Waukesha |
| Nearest City | Oconomowoc |
| River/Stream | Oconomowoc |
| Coordinates | 43.11724, -88.49899 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 150 ft |
| Year Completed | 1840 (186 years old) |
Storage & Hydraulics
| NID Storage | 630 acre-ft |
| Max Storage | 630 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 78 acres |
| Drainage Area | 88 sq mi |
| Max Discharge | 400 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Oconomowoc |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/25/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00704 |
| Federal ID | WI00704 |
| More Info | State Dam Safety Program |