Mattingly No 2 Reservoir Report
Nearby: Tommy Shepard Anderson Lake
Last Updated: December 6, 2025
Mattingly No 2 is a privately owned earth dam located in Bryan County, Oklahoma, specifically in the city of Romia.
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Summary
Built in 1976 for irrigation purposes, this structure stands at a height of 19 feet with a hydraulic height of 16 feet. With a capacity to store 193 acre-feet of water, it serves the surrounding area for agricultural needs.
Managed by the Oklahoma Water Resources Board, Mattingly No 2 is regulated and inspected by the state to ensure its safety and functionality. Despite being classified as a low hazard potential dam, it is considered to have a very high risk due to its condition and the lack of a formal risk assessment. With a controlled spillway and one outlet gate, this dam plays a crucial role in water management for the region.
As a significant infrastructure for the local community, Mattingly No 2 continues to serve its primary purpose of irrigation while facing the challenges of aging infrastructure and potential risks associated with its condition. For water resource and climate enthusiasts, monitoring and maintaining the safety of dams like Mattingly No 2 is essential in ensuring sustainable water management practices for the future.
Year Completed |
1976 |
Dam Length |
1968 |
Dam Height |
19 |
River Or Stream |
TR-SASSAFRAS CR |
Primary Dam Type |
Earth |
Hydraulic Height |
16 |
Nid Storage |
193 |
Structural Height |
19 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
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.
Mattingly No 2