Frelk
Frelk is an earth dam located in Jackson County, Wisconsin, built in 1970. It carries a Low hazard potential classification.
About Frelk
The primary purpose of Frelk 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 George Frelk (private). It impounds the Tr So. Buffalo River near Osseo.
The dam stands 17 feet tall and stretches 520 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 86 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1970, 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.
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Location
| State | Wisconsin |
| County | Jackson |
| Nearest City | Osseo |
| River/Stream | Tr So. Buffalo River |
| Coordinates | 44.53633, -91.12706 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 520 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 86 acre-ft |
| Max Storage | 86 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 148 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | George Frelk |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WI00860 |
| Federal ID | WI00860 |
| More Info | State Dam Safety Program |