Dykstra Number 15 dam
Dykstra Number 15
Dykstra Number 15 is a privately owned earth dam located in Jones, South Dakota, along the TR-Whiteriver. Built in 1953, this dam stands at a height of 34 feet and spans 320 feet in length, with a storage capacity of 36 acre-feet. Despite its age, the dam is in relatively good condition, with a low hazard potential and a "Not Rated" condition assessment. The dam is regulated and permitted by the South Dakota Department of Environment and Natural Resources, with regular inspections and enforcement in place to ensure its safety and compliance with state regulations.
Managed by the Natural Resources Conservation Service, Dykstra Number 15 plays a crucial role in water resource management in the area, providing flood control and water storage. The dam's primary purpose, though unspecified, likely includes irrigation, recreation, and wildlife habitat enhancement. Its proximity to the TR-Whiteriver and its moderate storage capacity make it a valuable asset for the surrounding community, particularly during times of drought or heavy rainfall. The dam's construction and design reflect a commitment to sustainable water management practices, aligning with state and federal guidelines for dam safety and operation.
As a key feature in the St. Paul District of the US Army Corps of Engineers, Dykstra Number 15 serves as a testament to the importance of responsible dam ownership and maintenance. While its exact role in the local water infrastructure may vary, the dam stands as a symbol of human ingenuity in harnessing and managing natural resources for the benefit of both people and the environment. Water resource and climate enthusiasts can appreciate the careful planning and regulatory oversight that have gone into ensuring the safety and effectiveness of this essential piece of infrastructure in South Dakota's water landscape.
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 Dykstra Number 15 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| White River Near White River | 47 cfs | → |
| Little White R Below White River Sd | 117 cfs | → |
| Black Pipe Creek Nr Belvidere | 8 cfs | → |
| Bad R Near Fort Pierre Sd | 4 cfs | → |
| Little White R Near Rosebud Sd | 135 cfs | → |
| White R Near Kadoka Sd | 62 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dykstra Number 15.
Track Dykstra Number 15 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 Dykstra Number 15
Where does the data for Dykstra Number 15 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 Dykstra Number 15.