Matteson No.2b Reservoir Report
Nearby: George Matteson No.2
Last Updated: December 15, 2025
Matteson No.2b is a privately owned earth dam located in Woodward, Oklahoma, along TR SAND CREEK.
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Summary
Built in 1965 by the USDA NRCS, this structure stands at 30 feet high with a hydraulic height of 19 feet, serving a primary purpose classified as "Other." With a storage capacity of 57 acre-feet and a normal storage of 26 acre-feet, this dam plays a crucial role in managing water resources in the area.
Despite its low hazard potential, Matteson No.2b has been assessed as having a very high risk level, indicating the importance of proper risk management practices. The dam features a controlled spillway with a width of 1 foot and an outlet gate equipped with a single valve. The last inspection date recorded was in April 2010, with an inspection frequency of 5 years, although its condition is currently listed as "Not Rated."
Managed by the Natural Resources Conservation Service, Matteson No.2b is regulated by the Oklahoma Water Resources Board and falls under state jurisdiction for permitting, inspection, and enforcement. Its location in a high-risk area highlights the need for continued monitoring and maintenance to ensure the safety and effectiveness of this vital water resource infrastructure.
Year Completed |
1965 |
Dam Length |
370 |
Dam Height |
30 |
River Or Stream |
TR SAND CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
19 |
Nid Storage |
57 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
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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.
Matteson No.2b