Laramie Wastewater Treatment(Cell 1) Reservoir Report

Last Updated: December 5, 2025

The Laramie Wastewater Treatment Cell 1, located in Albany, Wyoming, is a crucial facility owned by the City of Laramie for treating wastewater from the drainage of the Laramie River.


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Summary

Designed by Gordon W. Bruchner and completed in 1983, this Earth dam structure stands at a height of 18 feet and has a hydraulic height of 16 feet. With a storage capacity of 455 acre-feet and a surface area of 36 acres, this facility plays a vital role in managing the region's wastewater in an environmentally sustainable manner.

Regulated by the State of Wyoming, the Laramie Wastewater Treatment Cell 1 undergoes regular inspections, with its condition assessed as fair and a low hazard potential. Despite its high risk assessment, the facility's emergency action plan and risk management measures are not explicitly detailed. The dam does not have a spillway, and the outlet gates consist of a valve system. The last inspection was conducted in June 2016, highlighting the importance of ongoing monitoring and maintenance to ensure the facility's continued safe and effective operation.

Overall, the Laramie Wastewater Treatment Cell 1 serves as a critical infrastructure for wastewater treatment in Laramie, Wyoming, with a focus on environmental protection and public health. As a locally owned and operated facility, it demonstrates a commitment to sustainable water resource management. However, considering its high risk assessment and the need for a comprehensive emergency action plan, ongoing attention and investment in maintaining and upgrading this essential facility are essential to safeguarding the community and the surrounding environment from potential risks.

Year Completed

1983

Dam Length

3700

Dam Height

18

River Or Stream

DRAINAGE OF LARAMIE RIVER

Primary Dam Type

Earth

Surface Area

36

Hydraulic Height

16

Drainage Area

0.06

Nid Storage

455

Structural Height

19

Outlet Gates

Valve - 0

Hazard Potential

Low

Foundations

Soil

Nid Height

19
       
Seasonal Comparison

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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.