Pass Lake Dam Reservoir Report

Last Updated: December 5, 2025

Pass Lake Dam, located in Erath, Texas, serves as a vital water supply source for the surrounding area.


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Summary

Completed in 1961, this private-owned earth dam stands at a height of 20 feet and stretches over 530 feet in length, with a storage capacity of 67 acre-feet. Situated on Sycamore Creek, the dam plays a crucial role in managing water resources in the region.

Despite its age, Pass Lake Dam remains in good condition and has not been rated for its structural integrity. The dam does not have a spillway and is not regulated by the state, but it undergoes regular inspections and permitting processes. With a high hazard potential, it is essential that proper risk management measures are in place to ensure the safety of surrounding communities and infrastructure.

Pass Lake Dam represents a significant piece of water infrastructure in Texas, contributing to water supply needs in the area. As climate change continues to impact water resources, the maintenance and management of dams like Pass Lake are crucial for ensuring water security and mitigating potential risks associated with extreme weather events. Passionate water resource and climate enthusiasts will find interest in the role that Pass Lake Dam plays in the broader context of water management and resilience in the face of a changing climate.

Year Completed

1961

Dam Length

530

Dam Height

20

River Or Stream

SYCAMORE CREEK

Primary Dam Type

Earth

Surface Area

4.7

Hydraulic Height

20

Nid Storage

67

Structural Height

20

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

20
       
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.