Coon Creek 24 Dam
Coon Creek 24
Coon Creek 24, also known as Peterson, is a local government-owned earth dam located in Monroe, Wisconsin. Constructed in 1963 by the USDA NRCS, this dam serves the primary purpose of debris control and flood risk reduction along TR Rullands Coulee Creek. With a dam height of 32 feet and a hydraulic height of 20 feet, Coon Creek 24 has a storage capacity of 68 acre-feet and a maximum discharge rate of 275 cubic feet per second.
Despite its fair condition assessment and low hazard potential, Coon Creek 24 is subject to state regulation, inspection, and enforcement by the Wisconsin Department of Natural Resources. The dam features an uncontrolled spillway and covers a drainage area of 0.9 square miles, providing valuable flood protection to the surrounding area. While the risk assessment deems the dam's risk as moderate, ongoing maintenance and monitoring ensure its continued effectiveness in mitigating potential hazards and protecting the community.
For water resource and climate enthusiasts, Coon Creek 24 offers a fascinating example of engineered infrastructure designed to manage water flow and reduce flood risks in a rural setting. With its historical significance and ongoing regulatory oversight, this earth dam serves as a vital component of water resource management in Monroe, Wisconsin. As climate change continues to impact precipitation patterns and water levels, the importance of structures like Coon Creek 24 in safeguarding communities from potential flooding events becomes increasingly apparent.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Coon Creek 24 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| La Crosse River At Sparta | 167 cfs | → |
| Kickapoo River At State Highway 33 At Ontario | 149 cfs | → |
| Kickapoo River At La Farge | 192 cfs | → |
| La Crosse River Near La Crosse | 435 cfs | → |
| Black River Near Galesville | 648 cfs | → |
| Lemonweir River At New Lisbon | 179 cfs | → |
About Coon Creek 24
Where does the data for Coon Creek 24 come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card below for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.