Stillwell
Stillwell is an earth dam located in Monroe County, Wisconsin, built in 1944. It carries a Low hazard potential classification and has a fair condition assessment.
About Stillwell
The primary purpose of Stillwell is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Fort Mccoy (federal). It impounds the Stillwell Creek near Fort Mc Coy.
The dam stands 12 feet tall and stretches 240 feet across, creates a reservoir covering 3 acres, and has a maximum storage capacity of 61 acre-feet. Completed in 1944, the structure is well-established, with more than 75 years 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 07/29/2020.
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Location
| State | Wisconsin |
| County | Monroe |
| Nearest City | Fort Mc Coy |
| River/Stream | Stillwell Creek |
| Coordinates | 43.99039, -90.64654 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Length | 240 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 61 acre-ft |
| Max Storage | 61 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 3 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Fort Mccoy |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/29/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI12791 |
| Federal ID | WI12791 |
| More Info | State Dam Safety Program |