Dam Report

Koranda Dam dam

Nebraska, USA Tr-N Fk Wahoo Creek Hazard Low
Today high
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Tonight low
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Dam height
32ft
Hazard rating
Low
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Koranda Dam -- None dam
Koranda Dam None · Tr-N Fk Wahoo Creek
About this dam

Koranda Dam

Koranda Dam, located in Saunders County, Nebraska, is a vital structure managed by the local government to regulate the flow of the North Fork Wahoo Creek. Completed in 1960, this earth dam stands at 32 feet high and 250 feet long, with a storage capacity of 170 acre-feet. While primarily serving flood risk reduction purposes, it also supports other water resource management needs in the region.

Despite its low hazard potential, Koranda Dam is currently assessed to be in poor condition as of June 2020. The dam is inspected every five years to ensure its structural integrity and functionality. With the State Department of Natural Resources overseeing the regulatory aspects, the dam plays a crucial role in safeguarding the surrounding communities and environment from potential risks associated with water management.

As climate change continues to impact water resources, the maintenance and upkeep of dams like Koranda become increasingly important to ensure their resilience to extreme weather events. Climate enthusiasts and water resource advocates recognize the significance of structures like Koranda Dam in mitigating flood risks and managing water flow for the sustainable development of the region.

StateNone
River / streamTr-N Fk Wahoo Creek
NID IDNE00259
Owner typeLocal Government
Primary purposeOther
Dam typeEarth
Year built1960
Dam height32 ft
Dam length250 ft
Max storage170 AF
Drainage area1.3 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionThu, 18 Jun 2020 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 Koranda Dam -- inflows here typically show up in storage 24-72 hours later.

Track Koranda 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 Koranda Dam

Where does the data for Koranda 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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Premium feature

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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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