Lake Graham Dam Reservoir Report
Last Updated: December 20, 2025
Lake Graham Dam, also known as Graham Lake, is a private-owned structure located in Briscoe County, Texas.
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Summary
Built in 1963 by the USDA NRCS, this earth dam stands at a height of 63 feet and spans 2900 feet across Little Cottonwood Creek. Its primary purpose is irrigation, serving as a vital resource for the surrounding agricultural community.
With a storage capacity of 1250 acre-feet, Lake Graham Dam plays a crucial role in managing water resources in the area. The dam features an uncontrolled spillway with a width of 500 feet, capable of handling a maximum discharge of 4000 cubic feet per second. Despite being last inspected in 1977, the dam's hazard potential is deemed not available, with a moderate risk assessment score of 3.
While the dam's condition assessment is not rated, its role in supporting irrigation needs and water management in the region highlights its importance as a key infrastructure for sustainable agricultural practices. The dam's association with the Natural Resources Conservation Service underscores its commitment to environmental conservation and water resource management. Lake Graham Dam stands as a testament to the intersection of water resource management, climate resilience, and agricultural sustainability in Texas.
Year Completed |
1963 |
Dam Length |
2900 |
Dam Height |
63 |
River Or Stream |
LITTLE COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
63 |
Drainage Area |
8.98 |
Nid Storage |
1250 |
Structural Height |
63 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Rock, Soil |
Nid Height |
63 |
Seasonal Comparison
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Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Lake Graham Dam