Rosa Reservoir Report
Nearby: Oknoname 121010 Cosgrove John Preston
Last Updated: December 6, 2025
Rosa is a privately owned dam located in Pittsburg, Oklahoma, near the city of Arpelar.
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Summary
Built in 2010 by Fox Engineering Inc., this structure stands at a height of 30 feet and has a maximum storage capacity of 60 acre-feet. The dam serves as a barrier to a tributary of Coal Creek, with a drainage area of 0.15 square miles and a surface area of 7.22 acres.
With a low hazard potential and a moderate risk assessment rating, Rosa is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, permitting, and enforcement. The dam features an uncontrolled spillway with a width of 15 feet, and has not been modified since its completion. Although the condition assessment is currently listed as "Not Rated," the overall risk management measures for the dam are considered to be moderate.
Located within the Tulsa District, Rosa is a key component of water resource management in the area, ensuring a stable water supply for the region. As climate enthusiasts and water resource experts, understanding the infrastructure and operational details of dams like Rosa is crucial for effective mitigation and adaptation strategies in the face of changing environmental conditions.
Year Completed |
2010 |
Dam Length |
300 |
Dam Height |
30 |
River Or Stream |
TRIB. TO COAL CREEK |
Surface Area |
7.22 |
Hydraulic Height |
22 |
Drainage Area |
0.15 |
Nid Storage |
60 |
Structural Height |
25 |
Hazard Potential |
Low |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Canadian River At Calvin
|
361cfs |
North Canadian River Near Wetumka
|
209cfs |
Little River Near Sasakwa
|
12cfs |
Kiamichi River Near Clayton
|
182cfs |
Fourche Maline Near Red Oak
|
1cfs |
Muddy Boggy Creek Near Farris
|
9cfs |
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.
Rosa