Yseleta Lake Dam Reservoir Report

Last Updated: December 5, 2025

Yseleta Lake Dam, located in Nacogdoches, Texas, was completed in 1912 and serves primarily for irrigation purposes.


°F

°F

mph

Wind

%

Humidity

Summary

This private earth dam on Yseleta Creek stands at 24 feet high and has a maximum storage capacity of 61 acre-feet. The dam has a fair condition assessment as of April 2021 and is subject to regular state inspection, regulation, and enforcement by the Texas Commission on Environmental Quality (TCEQ).

With a spillway width of 38 feet and three uncontrolled outlet gates, Yseleta Lake Dam has a moderate hazard potential and a drainage area of zero. Despite being a relatively small structure at 260 feet long, the dam plays a crucial role in providing water supply for irrigation in the area. The dam underwent structural modifications in 1991 to ensure its continued safety and efficiency in managing water resources in the region.

The dam's location in Nacogdoches, Texas, under the jurisdiction of the Fort Worth District, highlights the importance of water resource management in the region. As climate change continues to impact water availability and quality, the maintenance and proper regulation of structures like Yseleta Lake Dam are essential for ensuring sustainable water use for irrigation and other purposes in the community.

Years Modified

1991 - Structural

Year Completed

1912

Dam Length

260

Dam Height

24

River Or Stream

TR-YSELETA CREEK

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

20

Nid Storage

61

Structural Height

24

Outlet Gates

Uncontrolled - 3

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

24
       
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.