Dam Report

Yankee Hill Road Dam dam

Nebraska, USA Tr-N Fk Johnson Creek Hazard Low
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Dam height
19ft
Hazard rating
Low
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Yankee Hill Road Dam -- None dam
Yankee Hill Road Dam None · Tr-N Fk Johnson Creek
About this dam

Yankee Hill Road Dam

Yankee Hill Road Dam, located in Seward, Nebraska, is a crucial piece of infrastructure owned by the local government to manage flood risk along the TR-N FK JOHNSON CREEK. Completed in 1980, this earth dam stands at a height of 18.9 feet and has a storage capacity of 112.6 acre-feet, with a normal storage level of 45.4 acre-feet. Despite its low hazard potential, the dam's condition assessment in 2017 rated it as poor, highlighting the need for maintenance and improvements to ensure its long-term effectiveness.

Managed by the Nebraska Department of Natural Resources, Yankee Hill Road Dam serves a primary purpose of flood risk reduction, alongside other ancillary functions. The dam's location in an area with a drainage area of 1.17 square miles underscores its importance in protecting the surrounding community from potential flooding events. While the dam has not undergone major modifications in recent years, regular inspections are conducted every 5 years to monitor its structural integrity and overall safety.

With a congressman from the 1st Congressional District of Nebraska overseeing the area, Yankee Hill Road Dam plays a critical role in safeguarding the region from water-related hazards. As water resource and climate enthusiasts, it is important to stay informed about the condition and maintenance of such infrastructure to ensure its continued effectiveness in mitigating flood risks and protecting the local community. Monitoring the dam's condition and advocating for necessary improvements can help ensure the long-term resilience of the region in the face of changing environmental conditions.

StateNone
River / streamTr-N Fk Johnson Creek
NID IDNE09896
Owner typeLocal Government
Primary purposeOther
Dam typeEarth
Year built1980
Dam height19 ft
Dam length580 ft
Max storage113 AF
Normal storage45 AF
Surface area13.3 ac
Drainage area1.2 sq mi
Hazard potentialLow
ConditionPoor
Last inspectionThu, 25 May 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 Yankee Hill Road Dam -- inflows here typically show up in storage 24-72 hours later.

Track Yankee Hill Road 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 Yankee Hill Road Dam

Where does the data for Yankee Hill Road 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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