Lost Creek 4
Lost Creek 4 is an earth dam located in Pepin County, Wisconsin, built in 1959. It carries a Low hazard potential classification and has a fair condition assessment.
About Lost Creek 4
The primary purpose of Lost Creek 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 Pepin County (local government). It impounds the Tributary To Lost Creek.
The dam stands 35 feet tall and stretches 520 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 139 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1959, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/19/2015. That was over 10 years ago.
At 35 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Wisconsin |
| County | Pepin |
| Nearest City | None |
| River/Stream | Tributary To Lost Creek |
| Coordinates | 44.49908, -92.16619 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 520 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 139 acre-ft |
| Max Storage | 139 acre-ft |
| Normal Storage | 9 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 106 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Pepin County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/19/2015 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00376 |
| Federal ID | WI00376 |
| More Info | State Dam Safety Program |