Dam Report

Yearling Dam dam

Nebraska, USA Tr-Long Branch Hazard Low
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Tonight low
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Dam height
29ft
Hazard rating
Low
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Yearling Dam -- None dam
Yearling Dam None · Tr-Long Branch
About this dam

Yearling Dam

Yearling Dam, located in Richardson County, Nebraska, was completed in 1955 by the USDA NRCS and is currently owned and regulated by a private entity. The dam, primarily designed for flood risk reduction, stands at a height of 29 feet with a hydraulic height of 26 feet and a structural height of 31 feet. It spans 480 feet in length and has a storage capacity of 30 acre-feet, serving a drainage area of 0.3 square miles along the TR-LONG BRANCH river or stream.

Despite its low hazard potential, Yearling Dam received a poor condition assessment during its last inspection in March 2020. The dam is subject to state regulation and inspection by the Nebraska Department of Natural Resources, with enforcement and permitting responsibilities falling under the state's jurisdiction. While the dam's emergency action plan and risk management measures are not specified in the data, its location and design highlight its importance in managing water resources and mitigating flood risks in the area. For water resource and climate enthusiasts, Yearling Dam presents an intriguing case study of a privately owned earth dam with a significant role in local water management efforts.

StateNone
River / streamTr-Long Branch
NID IDNE00565
Owner typePrivate
Primary purposeOther
Dam typeEarth
Year built1955
Dam height29 ft
Dam length480 ft
Max storage30 AF
Normal storage10 AF
Surface area2.0 ac
Drainage area0.3 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionMon, 23 Mar 2020 00:00:00 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 Yearling Dam -- inflows here typically show up in storage 24-72 hours later.

Track Yearling 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 Yearling Dam

Where does the data for Yearling 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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