Day Lake
Day Lake is a concrete dam located in Ashland County, Wisconsin, built in 1968. It carries a High hazard potential classification.
About Day Lake
The primary purpose of Day Lake 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 Chippewa Riv W Fork near Clam Lake, Wi.
The dam stands 25 feet tall and stretches 380 feet across, creates a reservoir covering 640 acres, has a maximum storage capacity of 6,180 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 08/10/2020.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wisconsin dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Ashland |
| Nearest City | Clam Lake, Wi |
| River/Stream | Chippewa Riv W Fork |
| Coordinates | 46.17690, -90.91237 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 380 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 6,180 acre-ft |
| Max Storage | 6,180 acre-ft |
| Normal Storage | 4,175 acre-ft |
| Surface Area | 640 acres |
| Drainage Area | 16 sq mi |
| Max Discharge | 2,390 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 08/10/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00821 |
| Federal ID | WI00821 |
| More Info | State Dam Safety Program |