Midwestern Nursery Reservoir Report

Last Updated: January 11, 2026

Midwestern Nursery, located in Cherokee, Oklahoma, is a private irrigation reservoir built in 1969 on TR-PECAN CREEK.


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Summary

The dam, primarily constructed of earth and stone, stands at a height of 22 feet and has a maximum storage capacity of 58 acre-feet. The reservoir serves as a crucial water source for agricultural purposes in the region.

Managed by the Oklahoma Water Resources Board (OWRB), Midwestern Nursery is subject to state regulations, permitting, inspections, and enforcement. Despite its low hazard potential, the reservoir is classified as having a very high risk due to its critical importance for irrigation. The dam features a controlled spillway and a single outlet valve for water management, ensuring the safety and efficiency of its operation.

With its strategic location and essential role in supporting local agriculture, Midwestern Nursery plays a vital part in water resource management in the region. As water resource and climate enthusiasts, understanding the infrastructure and risk factors associated with such reservoirs is crucial for sustainable water usage and environmental conservation efforts.

Year Completed

1969

Dam Length

1200

Dam Height

22

River Or Stream

TR-PECAN CREEK

Primary Dam Type

Earth

Hydraulic Height

17

Nid Storage

58

Structural Height

22

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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.