Little Willow River is an other dam located in Aitkin County, Minnesota, built in 1977. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 56 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 Little Willow River
The primary purpose of Little Willow River 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-wildlife (state). It impounds the Little Willow River near Riverton.
The dam stands 10 feet tall and stretches 56 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 20 square miles. Completed in 1977, the structure is 49 years old.
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 08/28/2024.
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Location
| State | Minnesota |
| County | Aitkin |
| Nearest City | Riverton |
| River/Stream | Little Willow River |
| Coordinates | 46.71163, -93.69532 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 10 ft |
| Dam Height | 6 ft |
| Dam Length | 56 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 20 sq mi |
| Max Discharge | 50 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Mndnr-wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/28/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00687 |
| Federal ID | MN00687 |
| More Info | State Dam Safety Program |