Stillhouse Hollow Lk Nr Belton Reservoir Report

Last Updated: December 5, 2025

Stillhouse Hollow Lake is a reservoir located in Bell County, Texas, near the city of Belton.


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Summary

The lake was created in 1968 by the U.S. Army Corps of Engineers for flood control and water supply purposes. The hydrology of the lake is fed by the Lampasas and Leon Rivers and has a surface area of 6,430 acres. The lake provides water to the cities of Killeen, Harker Heights, and Belton. The snowpack that feeds the lake comes from the northern parts of Texas and the Rocky Mountains. The agricultural use around the lake includes cattle grazing and row crops. Recreation activities on the lake include fishing, boating, camping, hiking, and swimming. The lake is a popular destination for outdoor enthusiasts in the Central Texas region.

Reservoir Details

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0.0%
Percent of Normal 100%
Minimum 602.13 ft
2023-10-26
Maximum 640.9 ft
2016-06-08
Average 618 ft
Dam_Height 195
Hydraulic_Height 195
Drainage_Area 1319
Year_Completed 1968
Nid_Storage 1013800
Structural_Height 200
River_Or_Stream LAMPASAS RIVER
Foundations Soil
Surface_Area 6430
Hazard_Potential High
Outlet_Gates Uncontrolled - 0
Dam_Length 9720
Primary_Dam_Type Earth
Nid_Height 200
       
Seasonal Comparison
Precipitation, Total, In Levels
Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft Levels

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.