Shamrock Lake
Shamrock Lake is an earth dam located in Rusk County, Wisconsin, built in 1961. It carries a Low hazard potential classification.
About Shamrock Lake
The primary purpose of Shamrock Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Red House Properties, Llc (private). It impounds the Shamrock Creek.
The dam stands 10 feet tall and stretches 250 feet across, creates a reservoir covering 56 acres, has a maximum storage capacity of 370 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1961, 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. The most recent inspection on record was 08/14/2020.
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Location
| State | Wisconsin |
| County | Rusk |
| Nearest City | None |
| River/Stream | Shamrock Creek |
| Coordinates | 45.53776, -90.73402 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 250 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 370 acre-ft |
| Max Storage | 370 acre-ft |
| Normal Storage | 257 acre-ft |
| Surface Area | 56 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 150 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Red House Properties, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Last Inspection | 08/14/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI00556 |
| Federal ID | WI00556 |
| More Info | State Dam Safety Program |