Sd Noname 81 dam
Sd Noname 81
Sd Noname 81 is a privately owned dam located in Haakon, South Dakota, with a low hazard potential and a height of 23 feet. Built in 1955, this Earth-type dam serves the purpose of off-stream water storage, with a maximum capacity of 110 acre-feet and a normal storage level of 54 acre-feet. The dam has a length of 370 feet and is regulated by the South Dakota Department of Agriculture and Natural Resources. Despite being inspected in 1973, its current condition remains unrated.
Managed by the Natural Resources Conservation Service, Sd Noname 81 plays a crucial role in water resource management in the region. It has a maximum discharge capacity of 1700 cubic feet per second and ensures water availability for agricultural and environmental purposes. Although its emergency action plan status and risk assessment are not specified, the dam continues to provide valuable benefits to the community while adhering to state regulatory standards for inspection and enforcement.
As an essential component of the local water infrastructure, Sd Noname 81 contributes to the overall water management efforts in South Dakota. With its strategic location and operational efficiency, the dam helps mitigate water scarcity issues and supports sustainable development in the region. Climate and water resource enthusiasts can appreciate the significance of this structure in maintaining a reliable water supply for various stakeholders, while also emphasizing the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in the face of changing environmental conditions.
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 Sd Noname 81 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Fork Bad R Near Cottonwood Sd | · | → |
| White R Near Kadoka Sd | 97 cfs | → |
| Cheyenne R Near Plainview Sd | 312 cfs | → |
| Black Pipe Creek Nr Belvidere | 125 cfs | → |
| White R Near Interior Sd | 48 cfs | → |
| Cheyenne River Near Wasta | 73 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sd Noname 81.
More reservoirs
Track Sd Noname 81 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 Sd Noname 81
Where does the data for Sd Noname 81 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 Sd Noname 81.