Dam Report

Knippling Stockwater No.2 dam

South Dakota, USA Tr-Missonot Ratedi Hazard Significant
Today high
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Tonight low
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Dam height
20ft
Hazard rating
Significant
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Knippling Stockwater No.2 -- None dam
Knippling Stockwater No.2 None · Tr-Missonot Ratedi
About this dam

Knippling Stockwater No.2

Knippling Stockwater No.2 is a privately-owned earth dam located in Buffalo, South Dakota, completed in 1954 with a height of 20 feet and a length of 522 feet. The dam has a storage capacity of 80 acre-feet, with a normal storage level of 41 acre-feet. It is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place.

The dam is situated in the St. Paul District, and its primary purpose is to provide stockwater for agricultural use. With a significant hazard potential and a condition assessment of "Not Rated," there is a need for further evaluation and monitoring of its structural integrity and safety measures. The dam has a maximum discharge capacity of 377 cubic feet per second, although details on spillway type and width are not available.

Overall, Knippling Stockwater No. 2 serves an essential role in water resource management in the region, highlighting the importance of maintaining and ensuring the safety of such structures in the face of changing climate conditions. As water enthusiasts and climate advocates, it is crucial to stay informed about the status and management of key water resources like Knippling Stockwater No. 2 to promote sustainable practices and safeguard against potential risks in the future.

StateNone
River / streamTr-Missonot Ratedi
NID IDSD01358
Owner typePrivate
Dam typeEarth
Year built1954
Dam height20 ft
Dam length522 ft
Max storage80 AF
Normal storage41 AF
Hazard potentialSignificant
ConditionNot Rated

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Knippling Stockwater No.2 -- inflows here typically show up in storage 24-72 hours later.

Track Knippling Stockwater No.2 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.

FAQ

About Knippling Stockwater No.2

Where does the data for Knippling Stockwater No.2 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.

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