Coon Creek 23
Coon Creek 23 is an earth dam located in Monroe County, Wisconsin, built in 1961. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
About Coon Creek 23
The primary purpose of Coon Creek 23 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 Monroe County (local government). It impounds the Un Trib Rullands Coulee Creek.
The dam stands 39 feet tall and stretches 310 feet across, has a maximum storage capacity of 95 acre-feet, and collects water from a drainage area of 1 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. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 05/18/2016.
At 39 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Wisconsin |
| County | Monroe |
| Nearest City | None |
| River/Stream | Un Trib Rullands Coulee Creek |
| Coordinates | 43.74304, -90.84178 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 310 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 95 acre-ft |
| Max Storage | 95 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 368 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Monroe County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 05/18/2016 |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI00371 |
| Federal ID | WI00371 |
| More Info | State Dam Safety Program |