Pike Lake is a gravity dam located in Washington County, Wisconsin, built in 1870. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 12 ft12 ft tall and 200 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Pike Lake
The primary purpose of Pike Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Pike Lake Advancement Association (private). It impounds the Trib. Rubicon River near Hartford.
The dam stands 12 feet tall and stretches 200 feet across, creates a reservoir covering 522 acres, has a maximum storage capacity of 5,740 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1870, the structure is one of the older dams in the region, with over a century and a half of service.
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 08/11/2020.
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Location
| State | Wisconsin |
| County | Washington |
| Nearest City | Hartford |
| River/Stream | Trib. Rubicon River |
| Coordinates | 43.32113, -88.33461 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 200 ft |
| Year Completed | 1870 (156 years old) |
Storage & Hydraulics
| NID Storage | 5,740 acre-ft |
| Max Storage | 5,740 acre-ft |
| Normal Storage | 1,040 acre-ft |
| Surface Area | 522 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 617 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Pike Lake Advancement Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/11/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00662 |
| Federal ID | WI00662 |
| More Info | State Dam Safety Program |