Coon Creek 33
Coon Creek 33 is an earth dam located in La Crosse County, Wisconsin, built in 1960. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Coon Creek 33
The primary purpose of Coon Creek 33 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 La Crosse County (local government). It impounds the Tr Coon Creek.
The dam stands 46 feet tall and stretches 410 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 210 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1960, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/22/2020.
At 46 feet, this dam is taller than 91% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wisconsin dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | La Crosse |
| Nearest City | None |
| River/Stream | Tr Coon Creek |
| Coordinates | 43.78427, -90.91188 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 410 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 210 acre-ft |
| Max Storage | 210 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 310 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | La Crosse County |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00365 |
| Federal ID | WI00365 |
| More Info | State Dam Safety Program |