Schlotterbeck Trust Reservoir Reservoir Report

Last Updated: December 8, 2025

Schlotterbeck Trust Reservoir in Chickasha, Oklahoma is a privately owned earth dam with a primary purpose of water resource management.


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Summary

Built in 1979 by USDA NRCS, this reservoir has a height of 27 feet and a storage capacity of 75 acre-feet. It is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, with a low hazard potential rating. The reservoir's spillway is controlled, with a width of 1 foot, and it has one outlet valve.

Located on Otter Creek in Grady County, Schlotterbeck Trust Reservoir serves as a critical water source for the surrounding area. With a very high risk assessment due to its age and potential for failure, the reservoir requires ongoing risk management measures to ensure its long-term safety and functionality. Though its condition is currently not rated, the reservoir's owners are responsible for maintaining its integrity and preparing for any potential emergencies that may arise.

As a key component of the local water infrastructure, Schlotterbeck Trust Reservoir plays a crucial role in water supply management and flood control in the region. With its close oversight by state regulatory agencies and continuous monitoring, this reservoir serves as a vital resource for water resource and climate enthusiasts interested in sustainable water management practices and the impact of infrastructure on water availability and quality.

Year Completed

1979

Dam Length

196

Dam Height

27

River Or Stream

OTTER CR

Primary Dam Type

Earth

Hydraulic Height

17

Nid Storage

75

Structural Height

27

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
Seasonal Comparison

Weather Forecast

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.