Island Lake 4 is an earth dam located in Lyon County, Minnesota, built in 2009. It carries a Low hazard potential classification.
Dam profile
NID height · 41 ft41 ft tall and 360 ft long, taller than 87% of U.S. dams with a recorded height. 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 Island Lake 4
The primary purpose of Island Lake 4 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Deutz, Charles (private). It impounds the County Ditch 37-tr near Vesta.
The dam stands 41 feet tall and stretches 360 feet across, creates a reservoir covering 163 acres, has a maximum storage capacity of 320 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2009, the structure is relatively new.
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.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Minnesota |
| County | Lyon |
| Nearest City | Vesta |
| River/Stream | County Ditch 37-tr |
| Coordinates | 44.45726, -96.02049 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 360 ft |
| Year Completed | 2009 (17 years old) |
Storage & Hydraulics
| NID Storage | 320 acre-ft |
| Max Storage | 320 acre-ft |
| Surface Area | 163 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Deutz, Charles |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/31/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01555 |
| Federal ID | MN01555 |
| More Info | State Dam Safety Program |