James Qualls - Gss #1 Reservoir Report

Last Updated: December 5, 2025

James Qualls - Gss #1 is a privately owned earth dam located in Tillman County, Oklahoma, near the city of Grandfield.


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Summary

Built in 1991 by the USDA NRCS, this dam serves as a crucial water resource structure within the watershed of a tributary of the Red River. With a height of 28 feet and a storage capacity of 570 acre-feet, James Qualls - Gss #1 plays a significant role in flood control and water supply management in the region.

Managed by the Oklahoma Water Resources Board, this dam has a controlled spillway and a low hazard potential. Despite being categorized as "Very High (1)" in terms of risk assessment, the condition assessment for James Qualls - Gss #1 is currently listed as "Not Rated." The dam is equipped with a valve outlet gate and undergoes inspections every five years to ensure its structural integrity and functionality. While the dam has not been modified in recent years, it remains an important infrastructure for water conservation and management in the area.

Overall, James Qualls - Gss #1 represents a vital component of the water resource infrastructure in Oklahoma, contributing to flood control, water storage, and overall watershed management. As climate change continues to impact water resources, the maintenance and monitoring of dams like James Qualls - Gss #1 are essential to ensure the safety and sustainability of water supplies for the surrounding communities.

Year Completed

1991

Dam Length

50

Dam Height

28

River Or Stream

TRIB OF RED RIVER

Primary Dam Type

Earth

Hydraulic Height

28

Nid Storage

570

Structural Height

28

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

28
       
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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.