Sprowles No 3 Reservoir Report
Nearby: Sprowls Robert N Sprowles No 1
Last Updated: December 9, 2025
Sprowles No 3 is a privately owned dam located in Roger Mills, Oklahoma, along Beaver Dam Creek.
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Summary
This Earth-type dam, completed in 1962, stands at a height of 26 feet and has a maximum storage capacity of 50 acre-feet. The dam serves a primary purpose of "Other" and is regulated by the Oklahoma Water Resources Board (OWRB).
Despite its low hazard potential, Sprowles No 3 poses a very high risk due to its condition assessment being "Not Rated" and its risk assessment ranking at the top level of "1". The dam has undergone regular inspections, with the last one conducted in November 2010. With a controlled spillway and one valve outlet gate, the dam is equipped for managing a maximum discharge of 1470 cubic feet per second.
For water resource and climate enthusiasts, Sprowles No 3 presents an intriguing case study of a privately owned dam in Oklahoma with a complex risk profile. As climate change continues to impact water resources, understanding the condition and management of such structures becomes increasingly important for ensuring the safety and sustainability of our water infrastructure.
Year Completed |
1962 |
Dam Length |
220 |
Dam Height |
26 |
River Or Stream |
BEAVER DAM CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
50 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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.
Sprowles No 3