Dam Report

Zalesky Dam dam

Nebraska, USA Tr-S Fk Swan Creek Hazard Low
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Dam height
25ft
Hazard rating
Low
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Zalesky Dam -- None dam
Zalesky Dam None · Tr-S Fk Swan Creek
About this dam

Zalesky Dam

Zalesky Dam, located in Jefferson, Nebraska, is a privately owned structure that was completed in 1980 to serve the primary purpose of flood risk reduction. This earth dam, with a height of 24.6 feet and a length of 307 feet, stands along the TR-S FK SWAN CREEK, providing essential protection to the surrounding area. With a storage capacity of 75.2 acre-feet and a normal storage level of 34 feet, Zalesky Dam plays a crucial role in managing water resources and mitigating potential flood risks in the region.

Despite its important function, Zalesky Dam has been assessed as being in poor condition, with a low hazard potential. The last inspection in March 2017 highlighted the need for improvements to ensure the dam's continued effectiveness in protecting the community. With the Nebraska Department of Natural Resources overseeing regulation, permitting, inspection, and enforcement, efforts are ongoing to address the dam's structural deficiencies and enhance its resilience to climate-related challenges. Water resource and climate enthusiasts can appreciate the significance of Zalesky Dam in safeguarding the local area and the efforts being made to secure its long-term functionality.

As a key infrastructure in the area, Zalesky Dam also holds historical and environmental significance. Its location within the Omaha District and Congressional District 03, Nebraska, underscores its importance in the regional water management system. With its earth and stone construction, Zalesky Dam represents a blend of engineering ingenuity and natural materials, harmonizing with the surrounding landscape. By understanding and supporting the maintenance and improvement of structures like Zalesky Dam, enthusiasts can contribute to sustainable water resource management and climate resilience efforts in the region.

StateNone
River / streamTr-S Fk Swan Creek
NID IDNE09833
Owner typePrivate
Primary purposeOther
Dam typeEarth
Year built1980
Dam height25 ft
Dam length307 ft
Max storage75 AF
Normal storage34 AF
Surface area8.8 ac
Drainage area0.5 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionThu, 23 Mar 2017 12:00:00 GMT

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 Zalesky Dam -- inflows here typically show up in storage 24-72 hours later.

Track Zalesky Dam 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 Zalesky Dam

Where does the data for Zalesky Dam 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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