Ellsworth dam
Ellsworth
Ellsworth is a vital earth-type dam located on the East Cache Creek in Richards Spur, Oklahoma, with a primary purpose of water supply. Completed in 1961, this dam stands at a towering height of 96 feet and spans 3900 feet in length, providing a maximum storage capacity of 189,200 acre-feet and a normal storage volume of 59,470 acre-feet. With a surface area of 5,220 acres and a drainage area of 249 square miles, Ellsworth plays a crucial role in regulating water flow and storage in the region.
Despite its significant contributions to water resource management, Ellsworth poses a high hazard potential due to its unsatisfactory condition assessment. This poses a challenge in ensuring the safety and reliability of the dam in the face of potential risks. With a very high risk rating, it is essential for regulatory agencies like the Oklahoma Water Resources Board to conduct regular inspections, enforce necessary measures, and prepare emergency action plans to mitigate any potential threats associated with the dam.
The location of Ellsworth within Comanche County, Oklahoma, underlines the importance of maintaining and upgrading infrastructure to address the increasing demands on water resources and the impacts of climate change. With a controlled spillway, valve and vertical lift gates, and a high-risk profile, Ellsworth serves as a critical asset for water supply in the region, calling for continued attention and investment to ensure its long-term resilience and safety in the face of evolving environmental challenges.
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 Ellsworth -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Washita River Near Cyril | 1 cfs | → |
| Little Washita River Ab Scs Pond No 26 Nr Cyril | 0 cfs | → |
| Little Washita River Near Cement | 4 cfs | → |
| Washita River At Anadarko | 55 cfs | → |
| Cobb Creek Near Fort Cobb | 2 cfs | → |
| Little Washita River East Of Ninnekah | 9 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Ellsworth.
Track Ellsworth 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 Ellsworth
Where does the data for Ellsworth 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 Ellsworth.