Joint Booster Pump Station No 3 Reservoir Dam Reservoir Report

Last Updated: December 5, 2025

Joint Booster Pump Station No 3 Reservoir Dam in Ellis, Texas, stands as a crucial water resource infrastructure owned and regulated by the state.


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Summary

This earth dam, with a height of 30 feet and a hydraulic height of 28 feet, serves a primary purpose classified as "Other." The dam, completed in an unspecified year, boasts a storage capacity of 156 acre-feet, with a normal storage level of 146 acre-feet and a maximum discharge of 1622 cubic feet per second. The dam's spillway, at 185 feet wide, is designated as "Uncontrolled," and its overall condition is assessed as "Satisfactory" as of April 2021.

With a surface area of 13 acres and a drainage area of 0, this dam plays a critical role in water management within the region. Although the hazard potential is marked as "Not Available," the risk assessment indicates a moderate level of risk, suggesting the need for ongoing monitoring and management measures. Even though the Emergency Action Plan (EAP) status and other emergency preparedness details are not fully specified in the available data, the dam's risk level underscores the importance of proactive safety measures and routine inspections to ensure the resilience and reliability of this key infrastructure in the face of potential climate challenges.

Dam Length

3219

Dam Height

30

River Or Stream

Primary Dam Type

Earth

Surface Area

13

Hydraulic Height

28

Nid Storage

156

Structural Height

30

Outlet Gates

Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

30
       
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.