Sedimentation Pond Hg-3 Reservoir Report
Last Updated: December 5, 2025
Sedimentation Pond Hg-3, located in Routt County, Colorado, is a privately owned Earth dam completed in 1979 with a primary purpose of managing water resources in the area.
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Summary
With a height of 22 feet and a hydraulic height of 30 feet, the dam has a maximum storage capacity of 887 acre-feet, providing vital water storage for the region. The pond covers a surface area of 75 acres and is situated along the Hayden Gulch-OS river system, contributing to the overall water management strategy in the area.
Despite its low hazard potential, Sedimentation Pond Hg-3 is considered to have a high risk factor, emphasizing the importance of regular inspections and maintenance. The last inspection was conducted in 1991, with an inspection frequency of 6 years. While the condition assessment is currently rated as "Not Rated," the dam plays a crucial role in water resource management and climate resilience efforts in the region. With state regulatory oversight and enforcement in place, Sedimentation Pond Hg-3 ensures the safe and efficient utilization of water resources for the community.
As a key component of the water infrastructure in Hamilton, Colorado, Sedimentation Pond Hg-3 serves as a vital resource for water storage and management. With its strategic location and design, the dam contributes to the efficient utilization of water resources in the area, highlighting the importance of sustainable water management practices in the face of evolving climate conditions. By providing a steady supply of water and minimizing risks associated with flooding, Sedimentation Pond Hg-3 plays a crucial role in enhancing the resilience of the community to climate change impacts.
Year Completed |
1979 |
Dam Length |
650 |
Dam Height |
22 |
River Or Stream |
HAYDEN GULCH-OS |
Primary Dam Type |
Earth |
Surface Area |
75 |
Hydraulic Height |
30 |
Nid Storage |
887 |
Structural Height |
36 |
Hazard Potential |
Low |
Nid Height |
36 |
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.
Sedimentation Pond Hg-3
Pumphouse to Double Bridges