Frost No. 2 Reservoir Report

Last Updated: December 5, 2025

Frost No.


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Summary

2 is a privately owned irrigation dam located in Cody, Wyoming, along the Green Creek. Built in 1956, this earth dam stands at 14 feet high and has a storage capacity of 104 acre-feet. Despite its low hazard potential, the dam is currently in poor condition as of the last inspection in June 2019.

The dam features a valve outlet gate and an uncontrolled spillway with a width of 30 feet. Its primary purpose is irrigation, serving the agricultural needs of the surrounding area. The dam is regulated by the Wyoming State Engineer's Office and undergoes regular inspections, with a 5-year inspection frequency.

Although Frost No. 2 poses a moderate risk due to its poor condition, there are no emergency action plans in place as of the latest data update in March 2022. Water resource and climate enthusiasts may find interest in monitoring the maintenance and management of this dam to ensure its continued safety and functionality for irrigation purposes in the region.

Year Completed

1956

Dam Length

390

Dam Height

14

River Or Stream

GREEN CREEK

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

7

Nid Storage

104

Structural Height

14

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

14
       
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.