Clovertowne Lake Dam dam
Clovertowne Lake Dam
Clovertowne Lake Dam, located in St. Clair County, Illinois, was completed in 1984 and is owned privately. The dam, designed by THOUVENOT, WADE & MOERCHEN, stands at a height of 32 feet and spans 200 feet in length. Its primary purpose is for recreation, with a storage capacity of 70 acre-feet and a maximum discharge rate of 30 cubic feet per second. The dam is situated on the TRIB NEGRO HOLLOW CREEK and is regulated by the Illinois Department of Natural Resources.
Despite its low hazard potential, the dam has a moderate risk assessment due to its lack of condition assessment data. The last inspection was conducted in October 2018 with a frequency of every 5 years. The spillway is uncontrolled, with a width of 9 feet, and the outlet gates are also uncontrolled. While an Emergency Action Plan (EAP) is not available, the dam's risk management measures and inundation maps are yet to be prepared.
Overall, Clovertowne Lake Dam serves as a vital recreational resource in the area, offering a serene environment for outdoor enthusiasts. Its design and construction uphold safety standards, although there is room for improvement in terms of risk assessment and emergency preparedness. Water resource and climate enthusiasts can appreciate the significance of maintaining and enhancing the functionality of such dams to ensure sustainable water management practices in the region.
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.
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 Clovertowne Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mississippi River At St. Louis | 221,000 cfs | → |
| River Des Peres At St. Louis | 4,340 cfs | → |
| Silver Creek Near Freeburg | 155 cfs | → |
| Martigney Creek Near Arnold | 2 cfs | → |
| Gravois Creek Near Mehlville | 6 cfs | → |
| Grammond Creek Near Wilbur Park | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Clovertowne Lake Dam.
Track Clovertowne Lake Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Clovertowne Lake Dam
Where does the data for Clovertowne Lake Dam 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 above 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Clovertowne Lake Dam.