Dnot Ratedkee dam
Dnot Ratedkee
Dnot Ratedkee is a state-owned dam located in Meade, South Dakota, along the TR CHEYENNE river. Built by the WPA in 1938, this earth dam stands 31 feet tall and has a hydraulic height of 32 feet, providing a maximum storage capacity of 1867 acre-feet. While the dam is considered to have a high hazard potential, its current condition is rated as fair, with the last inspection conducted in October 2018.
The dam's spillway is uncontrolled with a width of 45 feet, and its drainage area covers 6 square miles. Despite lacking outlet gates, Dnot Ratedkee has a normal storage capacity of 900 acre-feet and a maximum discharge rate of 3645 cubic feet per second. With its moderate risk assessment of 3 on a scale of 1 to 5, this dam is subject to regular inspections every three years to ensure its structural integrity and overall safety.
For water resource and climate enthusiasts, Dnot Ratedkee serves as a noteworthy example of early infrastructure development in South Dakota, highlighting the importance of dam safety and risk management in safeguarding communities against potential hazards. As a regulated state structure under the jurisdiction of the South Dakota Department of Agriculture and Natural Resources, this dam plays a crucial role in water storage and flood control along the TR CHEYENNE river, demonstrating the intersection of engineering, environmental stewardship, and public safety in managing water resources for the benefit of local populations.
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 Dnot Ratedkee -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Moreau R Near Faith Sd | 135 cfs | → |
| Cheyenne R Near Plainview Sd | 4,730 cfs | → |
| Belle Fourche River Near Elm Springs | 411 cfs | → |
| South Fork Grand R Near Cash Sd | 34 cfs | → |
| Elk Cr Near Elm Springs Sd | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dnot Ratedkee.
Track Dnot Ratedkee 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 Dnot Ratedkee
Where does the data for Dnot Ratedkee 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 Dnot Ratedkee.