Dresden Cooling Lake Dam dam
Dresden Cooling Lake Dam
Dresden Cooling Lake Dam, located in Morris, Illinois, is a privately owned Earth dam completed in 1971 by Sargent & Lundy Engineers. This dam serves a primary purpose of providing cooling water for the adjacent Dresden Nuclear Power Plant, with a storage capacity of 14,590 acre-feet and a surface area of 1,275 acres. The dam stands at a height of 25 feet and stretches 44,000 feet in length, with a controlled spillway width of 63 feet to manage water discharge.
Managed by the Illinois Department of Natural Resources, Dresden Cooling Lake Dam is categorized as a high hazard structure due to its location on the Kankakee River and its proximity to residential and industrial areas downstream. Despite its high risk potential, the dam has not undergone a recent condition assessment, and its Emergency Action Plan was last revised in July 2018. With a very high risk rating and a lack of updated information on its risk management measures, the safety and maintenance of Dresden Cooling Lake Dam remain critical concerns for water resource and climate enthusiasts 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 Dresden Cooling Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Kankakee River Near Wilmington | 3,710 cfs | → |
| Mazon River Near Coal City | 212 cfs | → |
| Du Page River At Shorewood | 288 cfs | → |
| Hickory Creek At Joliet | 50 cfs | → |
| Blackberry Creek Near Yorkville | 38 cfs | → |
| Long Run Near Lemont | 8 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dresden Cooling Lake Dam.
Boat launches
- Cottage Road Will County
- Goose Lake Road 3903, Grundy County
- Novy Road Shadow Lakes
- Shadow Lakes
- West Shepley Road Channahon
- Channahon Road Joliet
Campgrounds
- Des Plaines State Conservation Area
- Desplaines Conservational Park
- Kankakee River State Park
- Tony's Cabin
- Davis Creek Group Camp
- Illini State Park Campground
Fishing spots
Track Dresden Cooling 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 Dresden Cooling Lake Dam
Where does the data for Dresden Cooling 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 High 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 Dresden Cooling Lake Dam.