Deerfield Park dam
Deerfield Park
Deerfield Park in Pennington, South Dakota, is a privately owned dam situated on Slate Creek, completed in 1981. This Earth-type dam stands at a height of 36 feet and spans 375 feet, providing a storage capacity of 350 acre-feet. The dam serves a critical purpose in flood control and water management, with a drainage area of 10 square miles and the capability to discharge up to 8200 cubic feet per second.
Despite its high hazard potential, Deerfield Park's dam is deemed to be in fair condition as of the last assessment in November 2020. The dam is regulated and inspected by the South Dakota Department of Agriculture and Natural Resources, ensuring its structural integrity and safety. The emergency action plan for the dam was last revised in April 2006, highlighting the importance of proactive risk management and preparedness in the face of potential emergencies.
Located within the Omaha District, Deerfield Park is a vital component of the water resource infrastructure in the region, contributing to the sustainable management of water resources and protection against flooding. Enthusiasts of water resources and climate will appreciate the significance of Deerfield Park in safeguarding the surrounding community and environment from potential water-related risks and emergencies.
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 Deerfield Park -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Castle Cr Below Deerfield Dam Sd | 10 cfs | → |
| Castle Cr Above Deerfield Res Near Hill City Sd | 10 cfs | → |
| Rapid Cr Above Pactola Res At Silver City | 22 cfs | → |
| Rhoads Fork Near Rochford Sd | 4 cfs | → |
| Rapid Cr Below Pactola Dam Sd | 71 cfs | → |
| Boxelder Cr Near Nemo Sd | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Deerfield Park.
Boat launches
- Deerfield Cove Road Pennington County
- Jenney Gulch Picnic Area Fishing Access
- Fsr 450 Pennington County
- Pennington County
- Sheridan Lake Road 16451, Rapid City
- Calvert Road Pennington County
Campgrounds
Track Deerfield Park 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 Deerfield Park
Where does the data for Deerfield Park 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 Deerfield Park.