Braly Mack M Reservoir Report
Last Updated: December 6, 2025
Braly Mack M is a privately owned earth dam located in Coal County, Oklahoma, along the TR-Clear Boggy Creek.
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Summary
Completed in 1983, this dam stands at a height of 25 feet and has a length of 900 feet, providing a storage capacity of 96 acre-feet. With a normal storage level of 49 acre-feet and a surface area of 13 acres, Braly Mack M serves various purposes, including flood control and water supply for the surrounding area.
Managed by the Oklahoma Water Resources Board, Braly Mack M has a controlled spillway and one valve outlet gate for water release. Despite being assessed as having a low hazard potential, the dam's risk assessment is classified as very high, indicating the importance of continued monitoring and maintenance. The last inspection was conducted in 2003, with an inspection frequency of every 5 years, highlighting the need for regular assessments to ensure the dam's structural integrity and safety for the community.
As a vital infrastructure for water resource management in the area, Braly Mack M plays a crucial role in regulating water flow and providing essential water storage. With its location in a high-risk zone, the dam's risk assessment underscores the necessity of implementing effective risk management measures to mitigate potential hazards. For water resource and climate enthusiasts, Braly Mack M serves as a fascinating case study in dam construction, maintenance, and the importance of proactive risk assessment and management in ensuring the safety and security of water resources.
Year Completed |
1983 |
Dam Length |
900 |
Dam Height |
25 |
River Or Stream |
TR-CLEAR BOGGY CR |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
25 |
Drainage Area |
100 |
Nid Storage |
96 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Blue River Near Connerville
|
54cfs |
Pennington Creek Near Reagan
|
7cfs |
Little River Near Sasakwa
|
12cfs |
Clear Boggy Creek Near Caney
|
423cfs |
Rock Creek At Sulphur
|
8cfs |
Canadian River At Calvin
|
361cfs |
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.
Braly Mack M