Warren Lake is a gravity dam located in Cottonwood County, Minnesota, built in 1939. It carries a Low hazard potential classification.
Dam profile
NID height · 13 ft13 ft tall and 44 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 Warren Lake
The primary purpose of Warren Lake is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Mndnr-fisheries (state). It impounds the Division Creek near Windom.
The dam stands 13 feet tall and stretches 44 feet across, creates a reservoir covering 140 acres, has a maximum storage capacity of 1,064 acre-feet, and collects water from a drainage area of 20 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 07/31/2024.
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Location
| State | Minnesota |
| County | Cottonwood |
| Nearest City | Windom |
| River/Stream | Division Creek |
| Coordinates | 43.88903, -95.10257 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 44 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 1,064 acre-ft |
| Max Storage | 1,064 acre-ft |
| Normal Storage | 665 acre-ft |
| Surface Area | 140 acres |
| Drainage Area | 20 sq mi |
| Max Discharge | 535 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Mndnr-fisheries |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/31/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00162 |
| Federal ID | MN00162 |
| More Info | State Dam Safety Program |