Newcastle Wastewater Treatment (Cell 4) Reservoir Report
Last Updated: December 5, 2025
Newcastle Wastewater Treatment (Cell 4) is a crucial facility owned by the City of Newcastle in Wyoming, designed by Lawrence T.
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Summary
Price and regulated by the Wyoming State Engineers Office. Located near the Pete Draw river, this Earth dam structure stands at a height of 15 feet, with a hydraulic height of 12 feet, and a length of 3720 feet, completed in 1988. It serves a primary purpose that falls under the "Other" category, with a storage capacity of 87 acre-feet and a surface area of 81 acres.
Despite its low hazard potential and fair condition assessment, Newcastle Wastewater Treatment (Cell 4) poses a high risk, with a risk assessment rating of 2. The facility has undergone inspections with a frequency of 5 years, with the last inspection conducted in September 2017. It features other controlled outlet gates and lacks a spillway. The structure's emergency action plan status and risk management measures are currently unclear, highlighting the importance of ongoing monitoring and maintenance to ensure the safety and efficiency of this vital water resource infrastructure for the community of Newcastle.
Year Completed |
1988 |
Dam Length |
3720 |
Dam Height |
15 |
River Or Stream |
PETE DRAW |
Primary Dam Type |
Earth |
Surface Area |
81 |
Hydraulic Height |
12 |
Nid Storage |
87 |
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)