Eldorado Reservoir Dam dam
Eldorado Reservoir Dam
Eldorado Reservoir Dam, also known as Karel Park Lake Dam, is a public utility structure located in Muddy, Illinois. Completed in 1920, this earth dam stands at a height of 20 feet and spans 1200 feet in length, serving primarily as a water supply source. With a storage capacity of 1712 acre-feet, this dam plays a crucial role in managing water resources in Saline County, Illinois.
Managed by the Illinois Department of Natural Resources, Eldorado Reservoir Dam is regulated and inspected by state authorities to ensure its safety and functionality. The dam's spillway, with a width of 100 feet, is uncontrolled in nature, allowing for a maximum discharge of 2778 cubic feet per second. The dam's hazard potential is considered significant, with a moderate risk assessment rating of 3, highlighting the importance of ongoing monitoring and risk management measures.
Water resource and climate enthusiasts will appreciate the intricate details of Eldorado Reservoir Dam, from its historical significance to its impact on the local environment. As a key infrastructure for water supply in the region, this dam serves as a vital resource for the community while also posing challenges in terms of potential hazards and risk management. With its unique design and regulatory oversight, Eldorado Reservoir Dam continues to play a crucial role in water management and conservation efforts in Saline County, Illinois.
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 Eldorado Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Fork Saline River Nr Carrier Mills | 942 cfs | → |
| Ohio River At Old Shawneetown | 259,000 cfs | → |
| Crab Orchard Creek Near Marion | 4 cfs | → |
| Lusk Creek Near Eddyville | 14 cfs | → |
| Little Wabash River At Carmi | 2,820 cfs | → |
| Big Muddy River At Plumfield | 516 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Eldorado Reservoir Dam.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Eldorado Reservoir Dam
Where does the data for Eldorado Reservoir 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 Significant 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.