Mcdowell Lake Dam Reservoir Report
Last Updated: December 5, 2025
Mcdowell Lake Dam, located in Fannin, Texas, is a private dam completed in 2000 with a primary purpose classified as 'Other'.
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Summary
The dam stands at a height of 18 feet and has a length of 800 feet, with a maximum storage capacity of 76 acre-feet. The dam's spillway type is 'Uncontrolled' with a width of 1 foot, and it features an uncontrolled outlet gate. The dam is classified as a buttress type and is situated in the Tulsa District.
Despite being a private structure, Mcdowell Lake Dam is subject to state permitting and inspection. The last inspection was conducted in September 2011, with a scheduled inspection frequency of every 5 years. The dam's hazard potential is listed as 'Not Available', with a moderate risk assessment rating of 3. While its condition assessment is labeled as 'Not Rated', the dam is not currently considered to pose a significant risk. With its location and design specifics, Mcdowell Lake Dam is an intriguing site for water resource and climate enthusiasts interested in the management and maintenance of such structures.
Year Completed |
2000 |
Dam Length |
800 |
Dam Height |
18 |
River Or Stream |
|
Primary Dam Type |
Other |
Surface Area |
10.5 |
Hydraulic Height |
18 |
Nid Storage |
76 |
Structural Height |
18 |
Outlet Gates |
Uncontrolled - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
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.
Mcdowell Lake Dam