Dam Report

Tewaukon Ws-T-2 dam

North Dakota, USA Wild Rice River-Tr Hazard Low
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Dam height
37ft
Hazard rating
Low
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Tewaukon Ws-T-2 -- None dam
Tewaukon Ws-T-2 None · Wild Rice River-Tr
About this dam

Tewaukon Ws-T-2

Tewaukon Ws-T-2, also known as Frenier, is a local government-owned earth dam located in Sargent County, North Dakota. Built in 1965 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the Wild Rice River. Standing at 41 feet tall and stretching 2,185 feet in length, the dam has a normal storage capacity of 238.5 acre-feet and a maximum storage of 2,013.3 acre-feet.

Managed by the North Dakota State Water Commission, Tewaukon Ws-T-2 is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. With a low hazard potential and a moderate risk assessment rating, this dam features an uncontrolled spillway with a width of 300 feet and a single valve outlet gate. Although its condition assessment is currently not rated, Tewaukon Ws-T-2 plays a crucial role in protecting the surrounding area from potential flood events.

Water resource and climate enthusiasts can appreciate the engineering and management efforts behind Tewaukon Ws-T-2, as it stands as a testament to effective flood risk reduction strategies in North Dakota. The dam's strategic location along the Wild Rice River, coupled with its low hazard potential and moderate risk assessment, highlights the importance of proactive measures in safeguarding communities from potential water-related disasters. With ongoing state oversight and enforcement, Tewaukon Ws-T-2 continues to serve its purpose in mitigating flood risks and ensuring the safety of the surrounding area.

StateNone
River / streamWild Rice River-Tr
NID IDND00045
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1965
Dam height37 ft
Dam length2,185 ft
Max storage2,013 AF
Normal storage239 AF
Surface area30.1 ac
Drainage area9.0 sq mi
Hazard potentialLow
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 Tewaukon Ws-T-2 -- inflows here typically show up in storage 24-72 hours later.

Track Tewaukon Ws-T-2 in the Snoflo app

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FAQ

About Tewaukon Ws-T-2

Where does the data for Tewaukon Ws-T-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 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.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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