Spring Valley Estates Lake Dam dam
Spring Valley Estates Lake Dam
Located in Nutwood-Offstream, Illinois, the Spring Valley Estates Lake Dam is a private structure designed by the USDA NRCS with a primary purpose of recreation. Completed in 1970, this earth dam with a buttress core stands at a height of 26 feet and spans 1955 feet along the Trib South Fork Otter Creek. The dam has a normal storage capacity of 67 acre-feet and a maximum storage of 109 acre-feet, making it a vital water resource for the surrounding community.
Managed by the Illinois Department of Natural Resources, the Spring Valley Estates Lake Dam is state-regulated and routinely inspected for safety and compliance. With a low hazard potential and moderate risk assessment rating, this dam poses minimal danger to the area but requires ongoing monitoring and risk management measures. Despite the lack of available condition assessment data, the dam remains a crucial asset for recreational activities and water storage in Jersey County, Illinois.
As a key component of the local water infrastructure, the Spring Valley Estates Lake Dam serves as a valuable resource for residents and climate enthusiasts alike. Its controlled spillway, uncontrolled outlet gates, and moderate risk assessment highlight the importance of maintaining and monitoring this structure for the safety and well-being of the surrounding community. The collaborative efforts of private ownership and state regulation ensure the continued functionality and resilience of this essential water resource in Illinois.
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 Spring Valley Estates Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mill Creek Near Florissant | 1 cfs | → |
| Coldwater Creek Near Black Jack | 36 cfs | → |
| Missouri River At St. Charles | 70,800 cfs | → |
| Cowmire Creek At Bridgeton | 3 cfs | → |
| Macoupin Creek Near Kane | 842 cfs | → |
| Watkins Creek Near Bellefontaine Neighbors | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Spring Valley Estates Lake Dam.
Boat launches
- Mc Adams Highway Jersey County
- Saale Road West Alton
- Old Jamestown
- Katy Trail Saint Charles
- Lakeside Park Trail Saint Peters
- Saint Charles County
Track Spring Valley Estates 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 Spring Valley Estates Lake Dam
Where does the data for Spring Valley Estates 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 Spring Valley Estates Lake Dam.