State Stock #7 Reservoir Report

Last Updated: December 13, 2025

State Stock #7, located in Cheyenne, Colorado, is a privately owned earth dam completed in 1939 primarily used for fire protection, stock, and small fish pond purposes.


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Summary

With a height of 18 feet and a length of 500 feet, this dam has a storage capacity of 140 acre-feet and covers a surface area of 15 acres. Despite its low hazard potential, it has been identified as having a high risk level, prompting the need for risk management measures to be put in place.

Managed by the Colorado Department of Water Resources, State Stock #7 is regulated, permitted, inspected, and enforced by state authorities. The dam is situated on Maverick Creek-TR and falls under the jurisdiction of the Kansas City District. Although it has not been rated for its condition, the last inspection took place in October 1987. The absence of spillways and locks indicates a simpler structure, but its risk assessment suggests the importance of monitoring and implementing safety protocols.

For water resource and climate enthusiasts, State Stock #7 presents an intriguing case study of a historic dam in Colorado with a blend of purposes including fire protection and stock maintenance. The intersection of private ownership, state regulation, and the need for risk management highlights the complexities involved in maintaining aging infrastructure while ensuring public safety and environmental protection. As climate change impacts water resources, understanding the condition and risk level of structures like State Stock #7 becomes crucial for sustainable water management practices.

Year Completed

1939

Dam Length

500

Dam Height

18

River Or Stream

MAVERICK CREEK-TR

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

18

Drainage Area

7

Nid Storage

140

Structural Height

18

Hazard Potential

Low

Nid Height

18
       
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.