Newcastle Wastewater Treatment (Cell 3) Reservoir Report
Last Updated: December 5, 2025
Newcastle Wastewater Treatment (Cell 3) is a crucial facility located in Weston, Wyoming, designed by Lawrence T.
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Summary
Price and completed in 1988. This Earth-type dam stands at 15 feet tall with a hydraulic height of 12 feet, serving as a key component in the treatment process of wastewater from the City of Newcastle. Situated along the Pete Draw river, this facility has a normal storage capacity of 70 acre-feet and covers a surface area of 81 acres.
Despite being classified as low hazard potential with a fair condition assessment, Newcastle Wastewater Treatment (Cell 3) is subject to state regulation and inspection by the Wyoming SEO. The facility boasts an outlet with 6 controlled gates and has a designated emergency action plan, although its risk assessment is marked as high. With its location in a picturesque setting and critical role in water treatment, this site is a prime example of sustainable infrastructure that contributes to the preservation of water resources and the mitigation of climate impacts in the region.
Year Completed |
1988 |
Dam Length |
3680 |
Dam Height |
15 |
River Or Stream |
PETE DRAW |
Primary Dam Type |
Earth |
Surface Area |
81 |
Hydraulic Height |
12 |
Nid Storage |
70 |
Structural Height |
15 |
Outlet Gates |
Other Controlled - 6 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Newcastle Wastewater Treatment (Cell 1)