Box Butte Dam Quick Facts
Box Butte Dam Map
Box Butte Dam Information
Box Butte Dam is an earthen embankment dam located about 10 miles from Dunlap, Dawes, Nebraska.
The dam, which is on the Niobrara River, was primarily built for Flood Risk Reduction purposes, but also serves for Irrigation benefits.
The dam was designed by US Bureau of Reclamation and commissioned in 1945 and is currently owned by US Bureau of Reclamation.
Box Butte Dam Structure
The Box Butte Dam is approximately 5,508 feet (1,679 m) long, 87 feet (27 m) high and has a structural volume of 1,422,000 cubic yards (1,087,197 cubic metres).
Box Butte Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 31,060 acre-ft (38,312 Ml) and maximum capacity of 47,800 acre-ft (58,960 Ml).
The surface area of the reservoir is 1,799 acres (728 ha) and the total catchment area is 1,260 square miles (3,263 square kilometres).
Box Butte Dam Spillway
The dam has a 590 feet (180 m) wide uncontrolled spillway with a maximum discharge capacity of 25500 cubic feet per second (722 cubic metres per second).
Box Butte Dam Compared to Five Famous American Dams
Box Butte Dam Weather
Current Conditions at Box Butte Dam
Failed to fetch current weather data.7-Day Forecast for Box Butte Dam
Failed to fetch weather forecast data.Box Butte Dam Frequently Asked Questions
Box Butte Dam is in Nebraska.
Box Butte Dam is in Dawes County.
Box Butte Dam is 87 feet high.
Box Butte Dam is 5,508 feet long.
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Condition Assessment Classification
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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Source: National Inventory of Dams