Brogan Dam Reservoir Report
Nearby: Marvin D Brogan Oknoname 30145
Last Updated: December 6, 2025
Brogan Dam, located in Washita, Oklahoma, is a privately owned earth dam designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1983, this dam stands at a height of 15 feet and has a length of 600 feet. With a storage capacity of 120 acre-feet and a low hazard potential, Brogan Dam plays a crucial role in managing the risk of flooding in the area.
The dam is regulated by the OWRB and is subject to state permitting, inspection, and enforcement. It is located near the TRI. TO COBB CREEK and falls under the jurisdiction of the Tulsa District of the USACE. Despite not being rated for condition assessment, Brogan Dam is considered to have a very high risk rating of 1, highlighting the importance of proper risk management measures to ensure its continued effectiveness in flood risk reduction.
For water resource and climate enthusiasts, Brogan Dam presents an intriguing case study of how private and public entities can collaborate to mitigate the impact of flooding in vulnerable areas. Its strategic location, design, and storage capacity make it a key player in the region's water management efforts. As discussions around climate change and its effects on water resources intensify, the role of dams like Brogan Dam in safeguarding communities against floods becomes even more significant.
Year Completed |
1983 |
Dam Length |
600 |
Dam Height |
15 |
River Or Stream |
TRI. TO COBB CREEK |
Primary Dam Type |
Earth |
Drainage Area |
1 |
Nid Storage |
120 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cobb Creek Near Eakly
|
16cfs |
Lake Creek Near Eakly
|
4cfs |
Willow Creek Near Albert
|
2cfs |
Cobb Creek Near Fort Cobb
|
4cfs |
Washita River Near Clinton
|
32cfs |
Canadian River At Bridgeport
|
126cfs |
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.
Brogan Dam