Waterloo Reservoir 1 Dam dam
Waterloo Reservoir 1 Dam
Waterloo Reservoir 1 Dam, located in Monroe County, Illinois, is a privately owned structure with a primary purpose of water supply. Constructed in 1924 by designers LOPINOT & WEBER, this earth dam stands at a height of 31 feet and spans a length of 350 feet, with a maximum storage capacity of 86 acre-feet. The reservoir is situated on the tributary of Fountain Creek and serves as a vital water resource for the surrounding area.
Managed by the Illinois Department of Natural Resources, the dam is regulated, inspected, and enforced to ensure its safety and functionality. With a spillway width of 49 feet and a maximum discharge capacity of 845 cubic feet per second, the dam poses a significant hazard potential and is classified as having a moderate risk level. Despite its age, the condition assessment of the dam is not available, highlighting the need for regular monitoring and maintenance to prevent any potential risks or emergencies.
Waterloo Reservoir 1 Dam plays a crucial role in providing water supply to the region, serving as a key infrastructure for water resource management in Illinois. As climate change continues to impact water availability and quality, the upkeep and proper functioning of such dams become increasingly important to ensure the resilience of our water systems. With its historical significance and vital role in water supply, Waterloo Reservoir 1 Dam serves as a reminder of the importance of sustainable water management practices in the face of changing environmental conditions.
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 Reservoir 1 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 Reservoir 1 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 Reservoir 1 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 Reservoir 1 Dam
Where does the data for Waterloo Reservoir 1 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 Reservoir 1 Dam.