Thrall Unit Flood Project dam
Thrall Unit Flood Project
The Thrall Unit Flood Project in Eureka, Kansas, is a privately owned structure regulated by the Kansas Department of Agriculture. Built in 1950 by Sinclair Oil and Gas Co, this buttress dam on Swing Creek stands at 30 feet tall and stretches 990 feet in length, with a storage capacity of 230 acre-feet. Despite its low hazard potential, the dam has not been rated for its condition since its last inspection in 1950.
The project serves a primary purpose classified as "Other" and is designed to provide flood protection and water resource management in the region. Located in Greenwood County, Kansas, the dam's construction and operation fall under the jurisdiction of the state regulatory agency. With a maximum discharge of 1800 cubic feet per second, the Thrall Unit Flood Project plays a crucial role in mitigating flood risks and ensuring water security for the surrounding area.
As water resource and climate enthusiasts, the Thrall Unit Flood Project offers a fascinating case study in private dam ownership and management. With its historical significance dating back to the mid-20th century, this structure on Swing Creek continues to play a vital role in safeguarding the local community against potential flooding events. Its unique design and operational features make it a noteworthy example of sustainable water infrastructure in the state of Kansas.
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 Thrall Unit Flood Project -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Verdigris R Nr Virgil | 1,830 cfs | → |
| Otter C At Climax | 13 cfs | → |
| Cottonwood R Nr Plymouth | 876 cfs | → |
| Cedar C Nr Cedar Point | 36 cfs | → |
| Neosho R Nr Americus | 829 cfs | → |
| Cottonwood R Nr Florence | 130 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Thrall Unit Flood Project.
Campgrounds
- Toronto Point - Cross Timbers State Park
- Rock Ridge Cove North - Fall River Lake
- White Hall Bay - Fall River Lake
- Holliday Hill - Cross Timbers State Park
- Fall River State Park
- El Dorado State Park
Fishing spots
- Chase State Fishing Lake
- El Dorado East Park Pond
- Butler State Lake
- Augusta City Lake
- Council Grove Reservoir
- Augusta - Santa Fe Lake
More reservoirs
Track Thrall Unit Flood Project 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 Thrall Unit Flood Project
Where does the data for Thrall Unit Flood Project 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 Low 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 Thrall Unit Flood Project.