Winter Lake Dam dam
Winter Lake Dam
Winter Lake Dam, located in Robertsville, Missouri, is a privately owned structure built in 1969 for recreational purposes. The dam, primarily made of earth and stone, stands at a height of 40 feet and spans a length of 520 feet, with a storage capacity of 337 acre-feet. Situated on the tributary of the Bourbeuse River, the dam serves as a crucial water resource for the region, with a drainage area of 750 acres and a maximum discharge capacity of 1,761 cubic feet per second.
Despite its satisfactory condition assessment in 2007, Winter Lake Dam has been classified with a high hazard potential due to its location and structural characteristics. Regular inspections by the DAM AND RESERVOIR SAFETY PROG of Missouri ensure its continued safety and operational integrity. With a moderate risk level, the dam requires ongoing risk management measures to mitigate potential hazards and protect the surrounding community. Winter Lake Dam's uncontrolled spillway system and absence of outlet gates highlight the importance of effective emergency preparedness and response protocols.
Water resource and climate enthusiasts are drawn to Winter Lake Dam not only for its recreational amenities but also for its role in providing essential water storage and management in the Franklin County region of Missouri. As a centrally located structure with a significant storage capacity, the dam plays a vital role in regulating water flow, supporting wildlife habitats, and ensuring water availability for various uses. Ongoing monitoring and risk assessment efforts contribute to the continued safety and sustainability of Winter Lake Dam, making it a key feature in the local water resource and climate landscape.
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 Winter Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bourbeuse River At Union | 256 cfs | → |
| Meramec River At Pacific | 1,330 cfs | → |
| Big River At Byrnesville | 505 cfs | → |
| Bonhomme Creek Near Ellisville | 1 cfs | → |
| Meramec River Near Eureka | 1,960 cfs | → |
| Kiefer Creek Near Ballwin | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Winter Lake Dam.
Boat launches
- Stierberger Court Union
- Highway Uu Franklin County
- Downtown Washington
- Buchheit Road 128, Franklin County
- Highway W Franklin County
- Katy Trail 1800, Saint Charles County
Campgrounds
- Robertsville State Park
- Klondike County Park
- Babler Memorial State Park
- Backpack Camp 7
- Backpack Camp 6
- Backpack Camp 5
Paddle runs
Track Winter 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 Winter Lake Dam
Where does the data for Winter 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 Winter Lake Dam.