Holbrook Lagoon Dam Reservoir Report
Last Updated: December 6, 2025
Holbrook Lagoon Dam, located in Hendley, Nebraska, is a privately owned earth dam that was completed in 2013.
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Summary
This structure stands at a height of 35 feet and has a storage capacity of 134 acre-feet, with a normal storage level of 70.7 acre-feet. The dam stretches 525 feet in length and is primarily constructed with stone core and soil foundation materials.
Managed by the Nebraska Department of Natural Resources, Holbrook Lagoon Dam is regulated, inspected, and enforced by the state agency to ensure its safety and compliance with regulations. The dam serves various purposes, including flood control and water conservation for the surrounding area, particularly the TR-Beaver Creek watershed. Despite its low hazard potential, the dam is regularly maintained and assessed to uphold its satisfactory condition.
With a low hazard potential and satisfactory condition assessment, Holbrook Lagoon Dam provides essential water management functions for Furnas County, Nebraska. Being part of the Omaha District, the dam plays a crucial role in protecting the local community from potential flooding events and ensuring the sustainable use of water resources in the region. Climate and water resource enthusiasts can appreciate the significance of Holbrook Lagoon Dam in maintaining a balance between water conservation and hazard mitigation in the area.
Year Completed |
2013 |
Dam Length |
525 |
Dam Height |
35 |
River Or Stream |
TR-BEAVER CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.7 |
Hydraulic Height |
35 |
Drainage Area |
0.02 |
Nid Storage |
134 |
Structural Height |
39 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Holbrook Lagoon Dam