Scs-Lower Clear Boggy Creek Site-17 Reservoir Report
Last Updated: December 6, 2025
SCS-Lower Clear Boggy Creek Site-17, located in Johnston, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS to primarily address flood risk reduction.
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Summary
Completed in 1957, this dam stands at a height of 40 feet and has a maximum storage capacity of 180 acre-feet. The dam's structure includes stone core types and soil foundations, with a controlled spillway type and one valve outlet gate for water control.
Despite its low hazard potential, the dam's risk assessment is categorized as very high, warranting attention to potential risk management measures. The last inspection was conducted in 1980, with a recommended inspection frequency of every 5 years. While the condition assessment is currently not rated, the dam's structural integrity remains crucial for protecting the surrounding area from potential flooding events. With the state jurisdiction and regulatory oversight by OWRB, the SCS-Lower Clear Boggy Creek Site-17 serves as a key asset in managing water resources and climate-related challenges in the region.
Year Completed |
1957 |
Dam Height |
40 |
River Or Stream |
TR SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
34 |
Nid Storage |
180 |
Structural Height |
40 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Blue River Near Connerville
|
54cfs |
Clear Boggy Creek Near Caney
|
423cfs |
Pennington Creek Near Reagan
|
7cfs |
Blue River Near Blue
|
58cfs |
Muddy Boggy Creek Near Farris
|
9cfs |
Washita River Near Dickson
|
317cfs |
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.
Scs-Lower Clear Boggy Creek Site-17