Waterloo New Reservoir Dam dam
Waterloo New Reservoir Dam
The Waterloo New Reservoir Dam, located in Monroe County, Illinois, was completed in 1961 and serves as a vital water supply source for the surrounding area. The dam stands at a height of 42 feet and spans 1800 feet, with a storage capacity of 774 acre-feet and a surface area of 34 acres. Designed by Lopinot & Weber, this earth dam with a buttress core type is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety and functionality.
This significant dam on the tributary of Fountain Creek plays a crucial role in managing water resources in the region, with a maximum discharge capacity of 900 cubic feet per second. Despite its age, the dam's condition assessment is currently listed as "Not Available," indicating a potential need for further evaluation and maintenance. The hazard potential of the dam is considered significant, highlighting the importance of ongoing risk management measures to safeguard against potential emergencies.
With its impressive storage capacity and essential role in water supply, the Waterloo New Reservoir Dam stands as a key infrastructure asset in Illinois. As climate change continues to impact water resources, the proper maintenance and management of dams like this one are crucial to ensure a reliable and sustainable water supply for the community. As enthusiasts of water resources and climate resilience, staying informed about the condition and management of dams like Waterloo New Reservoir is essential for promoting environmental stewardship and effective water resource management.
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 Waterloo New Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Richland Creek Near Hecker | 50 cfs | → |
| Martigney Creek Near Arnold | 3 cfs | → |
| Mattese Creek Near Mattese | 1,350 cfs | → |
| Kaskaskia River At New Athens | 6,750 cfs | → |
| Gravois Creek Near Mehlville | 498 cfs | → |
| Silver Creek Near Freeburg | 87 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Waterloo New Reservoir Dam.
Boat launches
- Williamson Road Oakville
- Lemay Ferry Road Oakville
- Il 13 New Athens
- Davis Street Ferry Road East Carondelet
- Ellis Grove Parkway Jefferson County
- Randolph County
Track Waterloo New Reservoir 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 Waterloo New Reservoir Dam
Where does the data for Waterloo New 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 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 Waterloo New Reservoir Dam.