Brush Hollow Reservoir Report
Last Updated: December 5, 2025
Brush Hollow, located in Fremont County, Colorado, is a captivating earth dam structure built in 1922 for irrigation purposes along Brush Hollow Creek.
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Summary
Managed by a private owner, the dam stands at a height of 90 feet and has a storage capacity of 5,071 acre-feet, providing vital water resources for the region. With a surface area of 168 acres and a drainage area of 8 square miles, the dam plays a crucial role in supplying water for irrigation and recreational activities.
The dam's spillway, with a width of 275 feet, is uncontrolled, and the structure has a high hazard potential due to its location and design. Despite this, the dam is in satisfactory condition, as confirmed by regular inspections by the Colorado Department of Water Resources. With a moderate risk assessment rating, the dam's emergency action plan is up to date, ensuring that appropriate measures are in place in case of an emergency. Brush Hollow remains a significant water resource and a vital part of the local ecosystem, attracting water resource and climate enthusiasts alike.
For those interested in water resource management and climate resilience, Brush Hollow offers a fascinating case study in dam infrastructure and its impact on the surrounding environment. With its rich history, high hazard potential, and critical role in providing water for irrigation and recreational purposes, the dam serves as a reminder of the importance of sustainable water management practices in the face of changing climate conditions. As a privately owned structure regulated by the state, Brush Hollow represents a unique blend of public safety, environmental stewardship, and water resource utilization in the heart of Colorado's scenic landscape.
Year Completed |
1922 |
Dam Length |
874 |
Dam Height |
86 |
River Or Stream |
BRUSH HOLLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
168 |
Hydraulic Height |
82 |
Drainage Area |
8 |
Nid Storage |
5071 |
Structural Height |
90 |
Outlet Gates |
Uncontrolled - 0 |
Hazard Potential |
High |
Nid Height |
90 |
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.
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