Lake Three Dam is an earth dam located in Ashland County, Wisconsin, built in 1939. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 320 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 Lake Three Dam
The primary purpose of Lake Three Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Spring Brook.
The dam stands 18 feet tall and stretches 320 feet across, creates a reservoir covering 63 acres, has a maximum storage capacity of 550 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1939, 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. The most recent inspection on record was 08/10/2020.
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Location
| State | Wisconsin |
| County | Ashland |
| Nearest City | None |
| River/Stream | Spring Brook |
| Coordinates | 46.31720, -90.85804 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 17 ft |
| Dam Length | 320 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 550 acre-ft |
| Max Storage | 550 acre-ft |
| Normal Storage | 290 acre-ft |
| Surface Area | 63 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 170 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/10/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WI00820 |
| Federal ID | WI00820 |
| More Info | State Dam Safety Program |