Basin #2 Reservoir Report

Last Updated: December 13, 2025

Basin #2, located in Cedaredge, Colorado, is a vital water supply structure primarily used for irrigation and water supply purposes.


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Summary

The dam, completed in 1949, stands at a height of 15 feet with a hydraulic height of 16 feet. It serves a drainage area of 1 square mile and has a normal storage capacity of 118 acre-feet, providing essential water resources for the surrounding agricultural community. The dam's spillway type is listed as 'None', with a spillway width of 8 feet, indicating a unique design for managing water flow.

Despite its low hazard potential and satisfactory condition assessment, Basin #2 is classified as having a high risk level (2) based on the available data. The dam's inspection frequency is set at 6 times per year, with the last inspection conducted in August 2020. The structure's emergency action plan (EAP) status and risk management measures are not specified, highlighting potential areas for improvement in disaster preparedness. With a history of serving the local community for over 70 years, Basin #2 remains a critical piece of infrastructure in the region's water resource management efforts.

Year Completed

1949

Dam Length

600

Dam Height

15

River Or Stream

DIRTY GEORGE CREEK

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

16

Drainage Area

1

Nid Storage

158

Structural Height

20

Outlet Gates

Slide (sluice gate), Uncontrolled

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

20
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

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.