Dam Report

Anderson Dam 587 dam

Nebraska, USA Tr-Willow Creek Hazard Low
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Dam height
36ft
Hazard rating
Low
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Anderson Dam 587 -- None dam
Anderson Dam 587 None · Tr-Willow Creek
About this dam

Anderson Dam 587

Anderson Dam 587, located in Banner, Nebraska, is a privately owned structure designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources. Completed in 1969, this earth dam stands at a height of 36 feet and serves a primary purpose of flood risk reduction along the TR-WILLOW CREEK river. With a storage capacity of 231 acre-feet, the dam covers a surface area of 6 acres and has a drainage area of 1.9 square miles.

Despite its low hazard potential and satisfactory condition assessment as of September 2017, Anderson Dam 587 undergoes inspections every five years to ensure its structural integrity and safety. The dam is equipped with outlet gates and has a maximum discharge capacity of 2118 cubic feet per second. While no spillway type or width is specified, the dam's associated structures are limited to its core made of stone and foundation on soil.

For water resource and climate enthusiasts, Anderson Dam 587 offers a glimpse into the vital role of privately owned structures in flood risk reduction efforts. With its strategic location in Nebraska and regulation by state authorities, this dam showcases the collaboration between government agencies and private entities to manage water resources effectively. As a key component of the local infrastructure, Anderson Dam 587 plays a crucial role in safeguarding communities from potential flooding events and ensuring the sustainable management of water resources in the region.

StateNone
River / streamTr-Willow Creek
NID IDNE00587
Owner typePrivate
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1969
Dam height36 ft
Dam length676 ft
Max storage231 AF
Normal storage32 AF
Surface area6.0 ac
Drainage area1.9 sq mi
Hazard potentialLow
ConditionSatisfactory
Last inspectionWed, 27 Sep 2017 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 Anderson Dam 587 -- inflows here typically show up in storage 24-72 hours later.

Track Anderson Dam 587 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 Anderson Dam 587

Where does the data for Anderson Dam 587 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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