East Willow Creek E-3 is an earth dam located in Fillmore County, Minnesota, built in 1958. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 36 ft36 ft tall and 540 ft long, taller than 82% 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 East Willow Creek E-3
The primary purpose of East Willow Creek E-3 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 Mensink, John (private). It impounds the Crystal Cr Tr near Preston.
The dam stands 36 feet tall and stretches 540 feet across, has a maximum storage capacity of 332 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1958, the structure is well into its service life at over 50 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/30/2013. That was over 13 years ago.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Minnesota |
| County | Fillmore |
| Nearest City | Preston |
| River/Stream | Crystal Cr Tr |
| Coordinates | 43.57078, -92.15590 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 35 ft |
| Dam Length | 540 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 332 acre-ft |
| Max Storage | 332 acre-ft |
| Normal Storage | 10 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 475 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Mensink, John |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/30/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00334 |
| Federal ID | MN00334 |
| More Info | State Dam Safety Program |