Reservoir Report

Texas

Last Updated: May 7, 2026

Nearby: Joe Echols Dam No 2 Fortson Lake Dam

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Located in Texas, Lake Mexia NR Mexia is a small reservoir built in 1963 by the United States Army Corps of Engineers.

Summary

The lake's primary purpose is to provide flood control to the surrounding areas, but it also provides recreational opportunities such as fishing, boating, and camping. The hydrology of the lake is fed by two major creeks, Tehuacana Creek and Willow Creek, and several smaller tributaries. The lake's surface flow is mainly used for irrigation of agricultural lands, with cotton being the primary crop. The area also receives snowpack from time to time, which helps to replenish the lake's water levels. The lake has a maximum depth of 40 feet and covers approximately 1,140 acres.

Regional Streamflow Levels

Navasota Rv Abv Groesbeck 20.1cfs	20cfs
Big Ck Nr Freestone 3.2cfs	3cfs
Richland Ck Nr Dawson 1.1cfs	1cfs
Tehuacana Ck Nr Streetman 1.03cfs	1cfs
Ash Ck At Hwy 171 Nr Malone 865.0cfs	865cfs
White Rk Ck At Fm 308 Nr Irene 515.0cfs	515cfs

15-Day Long Term Forecast

Reservoir Details

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change	0.0%
Percent of Normal	None%
Minimum	444.41 ft 2024-11-30
Maximum	454.46 ft 2009-04-29
Average	448 ft

Seasonal Comparison

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft Levels

5-Day Hourly Forecast Detail

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.