Wambold
Wambold is a gravity dam located in Waukesha County, Wisconsin, built in 1836. It carries a Significant hazard potential classification and has a fair condition assessment.
About Wambold
The primary purpose of Wambold is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Eagle Spring Lake Management District;wruck, Steven (local government). It impounds the Mukwonago R near Eagleville.
The dam stands 12 feet tall and stretches 301 feet across, creates a reservoir covering 311 acres, has a maximum storage capacity of 1,540 acre-feet, and collects water from a drainage area of 22 square miles. Completed in 1836, 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 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 03/12/2021.
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Location
| State | Wisconsin |
| County | Waukesha |
| Nearest City | Eagleville |
| River/Stream | Mukwonago R |
| Coordinates | 42.85596, -88.43513 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 301 ft |
| Year Completed | 1836 (190 years old) |
Storage & Hydraulics
| NID Storage | 1,540 acre-ft |
| Max Storage | 1,540 acre-ft |
| Normal Storage | 1,127 acre-ft |
| Surface Area | 311 acres |
| Drainage Area | 22 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Eagle Spring Lake Management District;Wruck, Steven |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 03/12/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00331 |
| Federal ID | WI00331 |
| More Info | State Dam Safety Program |