Eucha dam
Eucha
Eucha, also known as Upper Spavinaw Lake, is a local government-owned water supply reservoir located in Delaware County, Oklahoma. Managed by the city of Spavinaw, this dam was completed in 1952 and serves as a crucial source of water for the surrounding area. With a capacity of 119,000 acre-feet and a normal storage of 79,600 acre-feet, Eucha plays a vital role in meeting the water needs of the community.
Situated on the Spavinaw Creek, Eucha has a dam height of 95 feet and a structural height of 95 feet. The reservoir covers a surface area of 2,860 acres and has a drainage area of 360 square miles. With a controlled spillway and a maximum discharge capacity of 298,000 cubic feet per second, the dam is designed to manage high hazard potential while maintaining fair condition assessment. In the event of emergencies, the dam is equipped with a valve outlet gate for efficient water release.
Despite its fair condition, Eucha poses a very high risk due to its age and high hazard potential. Regular inspections and maintenance are essential to ensure the safety and reliability of this critical water resource. With its strategic location and significant storage capacity, Eucha continues to play a key role in securing water supply for the region while facing challenges associated with climate change and increasing water demand.
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 Eucha -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Spavinaw Creek Near Eucha | 355 cfs | → |
| Neosho River Near Langley | 13,100 cfs | → |
| Beaty Creek Near Jay | 22 cfs | → |
| Spavinaw Creek Near Colcord | 108 cfs | → |
| Spavinaw Creek Near Sycamore | 72 cfs | → |
| Neosho River Near Chouteau | 655 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Eucha.
Boat launches
Campgrounds
- Spavinaw State Park
- Cherokee State Park
- Snowdale State Park
- Honey Creek State Park
- Bernice State Park
- Natural Falls State Park
Fishing spots
Track Eucha 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 Eucha
Where does the data for Eucha 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 Eucha.