Scs-Lower Clear Boggy Creek Site-20 Reservoir Report

Last Updated: December 6, 2025

SCS-Lower Clear Boggy Creek Site-20 in Atoka, Oklahoma is a state-regulated dam designed by USDA NRCS with a primary purpose of flood risk reduction.


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Summary

Completed in 1977, this earth dam stands at a height of 36 feet and has a hydraulic height of 32 feet. It has a normal storage capacity of 73 acre-feet and a maximum storage of 903 acre-feet, serving as a crucial structure for managing water flow in the Birch Creek.

The dam features a controlled spillway and a single valve outlet gate for water release. Despite being categorized as a low hazard potential structure, it is marked with a very high risk assessment rating, emphasizing the importance of regular inspections and potential risk management measures. With its location in Boggy Depot and oversight by the Oklahoma Water Resources Board, this dam plays a vital role in mitigating flood risks and ensuring water resource sustainability in the region. Water resource and climate enthusiasts will find this site to be a fascinating example of infrastructure designed for environmental protection and public safety.

Year Completed

1977

Dam Length

1080

Dam Height

36

River Or Stream

BIRCH CREEK

Primary Dam Type

Earth

Surface Area

20

Hydraulic Height

32

Nid Storage

903

Structural Height

36

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

36
       
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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.