Troy Mattingly Reservoir Report
Nearby: Anderson Lake Shepard Lake
Last Updated: December 6, 2025
Troy Mattingly is a privately owned irrigation dam located in Bryan, Oklahoma, constructed in 1976 by the USDA NRCS.
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Summary
With a height of 19 feet and a length of 1968 feet, this earth dam has a storage capacity of 140 acre-feet and serves the primary purpose of irrigation in the region. Even though it is not regulated by the state, it plays a crucial role in managing water resources in the area.
The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, no emergency action plan (EAP) has been prepared for this structure. The spillway width is 42 feet and can handle a maximum discharge of 227 cubic feet per second. With no associated structures and a small drainage area of 0.2 square miles, Troy Mattingly remains a key feature for water management in the Fort Worth District.
For water resource and climate enthusiasts, Troy Mattingly represents a significant landmark in the irrigation infrastructure of Bryan, Oklahoma. With its modest size and capacity, this privately owned dam provides essential water storage for agricultural purposes in the region. While it may have a moderate risk level, the absence of a formal emergency action plan raises concerns about the preparedness for any potential incidents. As efforts to manage water resources become increasingly important in the face of climate change, structures like Troy Mattingly play a vital role in ensuring sustainable water supply for the community.
Year Completed |
1976 |
Dam Length |
1968 |
Dam Height |
19 |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
19 |
Drainage Area |
0.2 |
Nid Storage |
140 |
Hazard Potential |
Low |
Nid Height |
19 |
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.
Troy Mattingly