Cook No. 2 Reservoir Report
Nearby: Cook Stock Strong No. 1
Last Updated: December 5, 2025
Cook No.
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Summary
2 is a private-owned dam located in Albany, Wyoming, along the Wall Rock Creek. Built in 2001 by designer Lloyd Baker, this Earth-type dam serves multiple purposes, including fire protection, stock, and a fish and wildlife pond. With a height of 27 feet and a capacity of 57 acre-feet, the dam covers a surface area of 4.3 acres and has a drainage area of 2.47 square miles.
Despite being classified as having a low hazard potential and fair condition assessment, Cook No. 2 is regularly inspected and maintained to ensure its safety and functionality. The dam features an uncontrolled spillway with a width of 45 feet and a maximum discharge capacity of 1470 cubic feet per second. The outlet gates consist of a single slide (sluice gate) to regulate water flow.
In the event of an emergency, the dam's Emergency Action Plan (EAP) status is currently unspecified, highlighting the need for updated preparedness measures. Overall, Cook No. 2 presents a moderate risk level, emphasizing the importance of continued risk management and maintenance to safeguard the surrounding environment and communities from potential water resource and climate-related impacts.
Year Completed |
2001 |
Dam Length |
346 |
Dam Height |
27 |
River Or Stream |
WALL ROCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
4.3 |
Hydraulic Height |
22 |
Drainage Area |
2.47 |
Nid Storage |
57 |
Structural Height |
34 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Laramie River Near Bosler
|
1950cfs |
Laramie River At Laramie
|
48cfs |
Sybille Creek Ab Mule Creek
|
143cfs |
Sybille Creek Ab Canal No. 3
|
93cfs |
Little Laramie River Near Filmore
|
671cfs |
Rock Creek Ab King Canyon Canal
|
12cfs |
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.
Cook No. 2