Stnot Ratedgis #4 dam
Stnot Ratedgis #4
Stnot Ratedgis #4 is a gravity dam located in South Dakota, specifically in Meade County near the city of STNot RatedGIS. Built in 1929, this dam stands at a height of 37 feet and has a length of 200 feet. It serves the primary purpose of controlling water flow on Alkali Creek, with a maximum discharge capacity of 185 cubic feet per second.
Managed by the local government and regulated by the South Dakota Department of Agriculture and Natural Resources, Stnot Ratedgis #4 is considered to have a significant hazard potential. Despite being in operation for several decades, the dam's condition assessment currently remains "Not Rated," indicating a need for further evaluation and potential upgrades to ensure its structural integrity and safety. The last inspection of the dam took place in July 1986.
With its vital role in managing water resources and mitigating flood risks in the area, Stnot Ratedgis #4 serves as a critical infrastructure for the community. As climate change continues to impact water availability and extreme weather events, the maintenance and monitoring of dams like Stnot Ratedgis #4 become increasingly essential for safeguarding both the environment and the local population against potential hazards and ensuring sustainable water resource management for the future.
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 Stnot Ratedgis #4 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Elk Cr Near Roubaix Sd | 7 cfs | → |
| Bear Butte Creek Near Deadwood | 2 cfs | → |
| Whitewood Cr Above Whitewood | 12 cfs | → |
| Deadwood Creek At Central City | 1 cfs | → |
| Whitewood Creek Near Whitewood Sd | 11 cfs | → |
| Boxelder Cr Near Nemo Sd | 8 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Stnot Ratedgis #4.
Boat launches
- Jenney Gulch Picnic Area Fishing Access
- Fsr 450 Pennington County
- Pennington County
- Sheridan Lake Road 16451, Rapid City
- Deerfield Cove Road Pennington County
- Calvert Road Pennington County
Campgrounds
- Alkali Creek Campground Host Site
- Alkali Creek Campground
- Alkali Creek Camp Site
- Alkali Creek Horsecamp
- Horsecamp, Camp Site
- Dalton Lake
Track Stnot Ratedgis #4 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 Stnot Ratedgis #4
Where does the data for Stnot Ratedgis #4 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 Significant 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 Stnot Ratedgis #4.