Atlas Feed Mill
Atlas Feed Mill is a gravity dam located in Polk County, Wisconsin, built in 1874. It carries a Significant hazard potential classification and has a fair condition assessment.
About Atlas Feed Mill
The primary purpose of Atlas Feed Mill is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Polk County (local government). It impounds the Trade River near Atlas.
The dam stands 14 feet tall and stretches 92 feet across, creates a reservoir covering 153 acres, has a maximum storage capacity of 1,610 acre-feet, and collects water from a drainage area of 45 square miles. Completed in 1874, 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 11/05/2019.
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Location
| State | Wisconsin |
| County | Polk |
| Nearest City | Atlas |
| River/Stream | Trade River |
| Coordinates | 45.63429, -92.59121 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 92 ft |
| Year Completed | 1874 (152 years old) |
Storage & Hydraulics
| NID Storage | 1,610 acre-ft |
| Max Storage | 1,610 acre-ft |
| Normal Storage | 1,100 acre-ft |
| Surface Area | 153 acres |
| Drainage Area | 45 sq mi |
| Max Discharge | 1,823 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Polk County |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/05/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00173 |
| Federal ID | WI00173 |
| More Info | State Dam Safety Program |