Gilbert Gp-2 Reservoir Report
Nearby: Young James M Tannahill Winnie G.
Last Updated: December 23, 2025
Gilbert Gp-2 is a privately owned earth dam located in Selman, Oklahoma, along the Sleeping Bear Creek.
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Summary
Constructed in 1960 by the USDA NRCS, this dam stands at 25 feet tall and spans 285 feet in length. With a storage capacity of 51 acre-feet and a surface area of 4 acres, Gilbert Gp-2 serves as a vital water resource for the surrounding area, particularly during periods of low rainfall. Despite its low hazard potential and moderate risk assessment, the dam's condition has not been rated, and it has not undergone recent inspections or maintenance.
Although Gilbert Gp-2 is not regulated or permitted by the state, it plays a crucial role in water management and conservation efforts in Harper County, Oklahoma. The dam's uncontrolled spillway with a width of 40 feet helps to mitigate the risk of flooding and control the flow of water downstream. While the dam's emergency action plan status is unclear, its location and design suggest that it is a valuable asset for local water resource management. As a part of the Natural Resources Conservation Service's portfolio, Gilbert Gp-2 stands as a testament to the importance of sustainable water infrastructure in the face of changing climate conditions.
For water resource and climate enthusiasts, Gilbert Gp-2 offers a unique insight into the intersection of infrastructure, conservation, and risk management. With a history dating back to the 1960s, this earth dam represents a key component of the region's water supply system. While its condition assessment is pending and its emergency preparedness status is unknown, Gilbert Gp-2 serves as a reminder of the ongoing challenges and opportunities in maintaining and improving water resources in a changing climate. As efforts to address climate change and water scarcity continue to evolve, Gilbert Gp-2 stands as a tangible example of the importance of sustainable water management practices for future generations.
Year Completed |
1960 |
Dam Length |
285 |
Dam Height |
25 |
River Or Stream |
SLEEPING BEAR CREEK |
Surface Area |
4 |
Hydraulic Height |
25 |
Drainage Area |
0.57 |
Nid Storage |
51 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Gilbert Gp-2