Dam Report

Wehrman Dam 1386 dam

Nebraska, USA Tr-Ox Bow Creek Hazard Low
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Tonight low
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Dam height
27ft
Hazard rating
Low
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Wehrman Dam 1386 -- None dam
Wehrman Dam 1386 None · Tr-Ox Bow Creek
About this dam

Wehrman Dam 1386

Wehrman Dam 1386, located in Nuckolls County, Nebraska, is a privately owned structure primarily used for irrigation purposes. Completed in 1979, this earth dam stands at a height of 26.7 feet with a hydraulic height of 24 feet and a structural height of 29.7 feet. With a normal storage capacity of 40.9 acre-feet and a maximum storage of 78.8 acre-feet, the dam covers a surface area of 4.5 acres and serves a drainage area of 0.23 square miles.

Despite its low hazard potential, Wehrman Dam 1386 is currently assessed to be in poor condition as of the last inspection in May 2016. The dam has a yearly inspection frequency of 5 and is regulated by the Nebraska Department of Natural Resources (NE DNR). While the dam has not undergone any modifications in recent years, its risk assessment, emergency action plan, and inundation maps status remain unknown. The dam's location on the TR-OX BOW CREEK, within the Congressional District 03 of Nebraska, underscores its importance in supporting agricultural activities in the region while highlighting the need for ongoing monitoring and maintenance to ensure its safety and functionality in the face of changing climate patterns.

StateNone
River / streamTr-Ox Bow Creek
NID IDNE01386
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1979
Dam height27 ft
Dam length295 ft
Max storage79 AF
Normal storage41 AF
Surface area4.5 ac
Drainage area0.2 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionWed, 25 May 2016 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 Wehrman Dam 1386 -- inflows here typically show up in storage 24-72 hours later.

Track Wehrman Dam 1386 in the Snoflo app

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FAQ

About Wehrman Dam 1386

Where does the data for Wehrman Dam 1386 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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