Dam Report

F. Macijewske dam

South Dakota, USA Tr-Moreau Hazard Low
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Tonight low
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Dam height
22ft
Hazard rating
Low
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F. Macijewske -- None dam
F. Macijewske None · Tr-Moreau
About this dam

F. Macijewske

Situated in Dewey, South Dakota, the F. Macijewske dam stands proudly as a vital water resource structure along the TR-MOREAU river. Completed in 1938, this earth dam boasts a height of 22 feet and a length of 390 feet, providing a storage capacity of 264 acre-feet. Owned and regulated by a private entity, the dam is under the jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR), ensuring regular inspections and enforcement of safety measures.

Despite its low hazard potential, the condition of F. Macijewske dam remains unrated, highlighting the need for a comprehensive assessment. While emergency action plans and risk management measures are currently unspecified, the dam serves as a crucial component of the local water management infrastructure. With its proximity to St. Paul District in South Dakota, the dam's role in flood control and water storage underscores its significance for both the environment and the community.

As a key feature in the region's water resource network, F. Macijewske dam plays a pivotal role in maintaining water levels and ensuring downstream water quality. With a capacity to handle maximum discharges of up to 2000 cubic feet per second, this earth dam stands as a testament to engineering excellence and the importance of sustainable water management practices. Despite its age, the dam continues to serve the community effectively, emphasizing the need for ongoing maintenance and assessment to safeguard its structural integrity for years to come.

StateNone
River / streamTr-Moreau
NID IDSD00894
Owner typePrivate
Dam typeEarth
Year built1938
Dam height22 ft
Dam length390 ft
Max storage264 AF
Normal storage176 AF
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 F. Macijewske -- inflows here typically show up in storage 24-72 hours later.

Around the water

Make a day of it

Boat launches, lakeside camping, fishing access, and other reservoirs near F. Macijewske.

Track F. Macijewske 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 F. Macijewske

Where does the data for F. Macijewske 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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