Grama Dam Reservoir Report
Nearby: Comanche Dam Kiowa Dam
Last Updated: December 5, 2025
Grama Dam, located in Cache, Oklahoma, is a federal-owned structure managed by the Fish and Wildlife Service for the primary purpose of serving as a Fish and Wildlife Pond.
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Summary
The dam, completed in 1936, stands at a height of 43 feet and has a hydraulic height of 44 feet, with a total length of 1044 feet. It has a storage capacity of 2179 acre-feet and covers a surface area of 67.95 acres, making it an important resource for fire protection, stock, and small fish ponds in addition to its primary function.
The dam's construction was overseen by GEI Consultants, Inc. and the U.S. Department of Agriculture, with maintenance and operations currently handled by the Fish and Wildlife Service. Despite being classified as having a high hazard potential, Grama Dam is deemed to be in fair condition as of the last assessment in June 2015. The dam's outlet gates are equipped with slide (sluice) gates, and it has undergone modifications in 2000 to enhance its hydraulic and mechanical systems.
With a drainage area of 3.04 square miles and a maximum discharge capacity of 4760 cubic feet per second, Grama Dam plays a crucial role in managing water resources in the region. Its location on DEER CREEK ensures the provision of essential water supply for wildlife while serving multiple purposes for the community. The dam's history, design, and operational features make it a significant asset for water resource and climate enthusiasts interested in the sustainable management of water infrastructure.
Years Modified |
2000 - Hydraulic, 2000 - Mechanical |
Year Completed |
1936 |
Dam Length |
1044 |
Dam Height |
43 |
River Or Stream |
DEER CREEK |
Primary Dam Type |
Earth |
Surface Area |
67.95 |
Hydraulic Height |
44 |
Drainage Area |
3.04 |
Nid Storage |
2179 |
Structural Height |
54 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
54 |
Seasonal Comparison
Weather Forecast
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Doris Camp
|
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Doris Campground - Wichita Mts NWR
|
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Robinsons Landing - Lake Lawtonka
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Grama Dam