Summary
Managed by GEI Consultants, Inc., this earth dam was completed in 2014 and stands at a height of 110 feet, with a storage capacity of 8,592 acre-feet for irrigation, recreation, and water supply purposes. The reservoir covers a surface area of 250 acres and has a maximum discharge of 19,500 cubic feet per second, making it a significant water source in the region.
Despite its high hazard potential, Long Hollow has been assessed to be in satisfactory condition as of March 2020, with regular inspections conducted to ensure its safety. The dam's spillway type is uncontrolled, with a width of 100 feet, and it is designed to withstand potential risks associated with its location. With its moderate risk assessment rating of 3, the reservoir plays a crucial role in water management in the area, providing essential resources for agricultural and recreational activities while adhering to state regulations and enforcement.
Overall, Long Hollow serves as a vital infrastructure for water storage and distribution in Colorado. With its modern design and efficient operation, the reservoir exemplifies the importance of sustainable water resource management in the face of changing climate conditions, showcasing the resilience and adaptability needed to address the challenges of the future.
Year Completed |
2014 |
Dam Length |
792 |
Dam Height |
110 |
River Or Stream |
LONG HOLLOW |
Primary Dam Type |
Earth |
Surface Area |
250 |
Hydraulic Height |
110 |
Nid Storage |
8592 |
Structural Height |
110 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
110 |
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.
Long Hollow