Cowan Lake Dam East dam
Cowan Lake Dam East
Cowan Lake Dam East is a privately owned earth dam situated in Osceola, Missouri, along the TR-SAC River. Completed in 1960, this dam stands at a height of 34 feet and has a storage capacity of 364 acre-feet. With a surface area of 20 acres and a drainage area of 180 acres, the dam serves various purposes and is classified as a high hazard potential structure.
Despite being privately owned, Cowan Lake Dam East is not regulated or inspected by the state regulatory agency. The condition assessment of the dam is currently marked as "Not Rated", and there is no Emergency Action Plan (EAP) prepared for the structure. The dam's hazard potential is considered high, highlighting the importance of proper risk management measures and emergency preparedness.
Located within the Kansas City District and represented by Vicky Hartzler (R) in Congress, Cowan Lake Dam East is a crucial water resource in Cedar County, Missouri. Water resource and climate enthusiasts can appreciate the significance of this structure in managing water flow and providing essential storage capacity for the surrounding area.
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 Cowan Lake Dam East -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cedar Creek Near Pleasant View | 245 cfs | → |
| Sac River Near Caplinger Mills | 3,170 cfs | → |
| Sac River At Hwy J Below Stockton | 1,170 cfs | → |
| Pomme De Terre River Near Polk | 196 cfs | → |
| Pomme De Terre River Near Hermitage | 1,550 cfs | → |
| Sac River Near Dadeville | 276 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Cowan Lake Dam East.
Boat launches
- Stockton
- State Highway 82 St. Clair County
- County Road 1791 Cedar County
- South 1527 Road 17499, Cedar County
- State Highway H St. Clair County
- East Cove Drive Umber View Heights
Track Cowan Lake Dam East 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 Cowan Lake Dam East
Where does the data for Cowan Lake Dam East 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 Cowan Lake Dam East.