Koepke Lake Dam South dam
Koepke Lake Dam South
Koepke Lake Dam South, located in Marthasville, Missouri, is a privately owned earth dam constructed in 1967 for fire protection, stock, and recreational purposes. Standing at a height of 40 feet and spanning 650 feet in length, this dam has a storage capacity of 90 acre-feet and covers a surface area of 7 acres. It serves as a vital structure for the local community, ensuring water availability for various uses while also providing a serene setting for recreational activities.
Managed by the DAM AND RESERVOIR SAFETY PROG in Missouri, Koepke Lake Dam South is subject to state regulations, inspection, and enforcement to ensure its safety and functionality. Although categorized with a significant hazard potential, the dam's condition was assessed as satisfactory during the last inspection in 2007. With a moderate risk rating, measures for risk management are yet to be specified. The dam's location along TR-CHARRETE CR in the Warren County offers a glimpse into the intersection of water resource management, climate impact, and infrastructure development in the region.
Despite its age, Koepke Lake Dam South stands as a testament to the importance of water resource infrastructure in ensuring community resilience and safety. As water resource and climate enthusiasts explore the dynamics of this dam, they gain insights into the complexities of managing and maintaining such critical structures amidst changing environmental conditions. With its significant role in water storage, fire protection, and recreational activities, Koepke Lake Dam South continues to be a focal point for understanding the intersection of human needs, natural resources, and environmental stewardship.
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 Koepke Lake Dam South -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bourbeuse River At Union | 329 cfs | → |
| Missouri River At Hermann | 133,000 cfs | → |
| Dardenne Creek At Ofallon | 185 cfs | → |
| Cuivre River Near Troy | 1,170 cfs | → |
| Bonhomme Creek Near Ellisville | 3 cfs | → |
| Dardenne Creek At Old Town St. Peters | 389 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Koepke Lake Dam South.
Boat launches
- Katy Trail Warren County
- Buchheit Road 128, Franklin County
- Downtown Washington
- Brittany Place 1, Lake Saint Louis
- Windjammer Point 200, Lake Saint Louis
- Katy Trail 1800, Saint Charles County
Campgrounds
- Camp Trinity
- Klondike County Park
- Hermann City Rv Park
- Babler Memorial State Park
- Cuivre River State Park
- Robertsville State Park
Paddle runs
Track Koepke Lake Dam South 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 Koepke Lake Dam South
Where does the data for Koepke Lake Dam South 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 Koepke Lake Dam South.