Frd No 21 dam
Frd No 21
Frd No 21, located in Cassoday, Kansas, is a key flood risk reduction structure designed by the USDA NRCS and completed in 1981. This earth dam stands at 27 feet in height and spans 3000 feet, providing vital protection to the surrounding area from potential flooding events. With a storage capacity of 1260 acre-feet and a surface area of 41.7 acres, Frd No 21 plays a crucial role in managing water resources in the region.
Managed by the local government and regulated by the Kansas Dept. of Agriculture, Frd No 21 is classified as having a high hazard potential due to its function in flood risk reduction. While the condition assessment is currently not rated, regular inspections are conducted every 3 years to ensure the structure's integrity and safety. The dam includes a spillway width of 200 feet, though details on the spillway type are not specified, emphasizing the importance of ongoing monitoring and maintenance to mitigate any potential risks associated with its operation.
Overall, Frd No 21 serves as a vital infrastructure project in Butler County, Kansas, contributing to the protection of nearby communities from the impacts of flooding. As climate change continues to pose challenges to water resource management, structures like Frd No 21 play a crucial role in enhancing resilience and reducing the risks associated with extreme weather events. With its strategic location along the Cole Creek-Tr river/stream, Frd No 21 stands as a testament to effective collaboration between federal and state agencies in safeguarding the local area from potential water-related disasters.
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 Frd No 21 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cedar C Nr Cedar Point | 30 cfs | → |
| Cottonwood R Nr Florence | 96 cfs | → |
| Whitewater R At Towanda | 27 cfs | → |
| Cottonwood R Nr Plymouth | 242 cfs | → |
| N Cottonwood R Bl Marion Lk | 9 cfs | → |
| Otter C At Climax | 7 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Frd No 21.
Track Frd No 21 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 Frd No 21
Where does the data for Frd No 21 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 Frd No 21.