Stienmetz Reservoir Report

Last Updated: December 6, 2025

Stienmetz is a privately owned dam located in Oklahoma, specifically in Caddo County near the city of Apache.


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Summary

Constructed in 2005 by USDA NRCS, this earth dam stands at a height of 24.5 feet and serves a variety of purposes, with a primary purpose categorized as "Other." It has a maximum storage capacity of 158.23 acre-feet and a normal storage of 35.22 acre-feet, providing vital water resource management for the surrounding area.

Managed by the OWRB, Stienmetz is regulated, permitted, inspected, and enforced by the state of Oklahoma to ensure its structural integrity and compliance with safety standards. The dam boasts a controlled spillway type with a width of 1 foot and a low hazard potential rating. Despite being in a very high-risk area, it is currently rated as "Not Rated" for its condition assessment, with the last inspection conducted in September 2010. Stienmetz plays a crucial role in managing the Cache River, benefiting the local ecosystem and climate resilience efforts in the region.

In case of emergencies, Stienmetz has emergency action plans and contacts in place, although details about their preparation, revision dates, and adherence to guidelines are not specified in the data. With its strategic location and design features, including a stone core and soil foundation, Stienmetz stands as a testament to effective water resource management and climate adaptation measures in Oklahoma. Its importance in mitigating flood risks and providing essential water storage highlights the significance of infrastructure like Stienmetz in safeguarding communities against climate-related challenges.

Year Completed

2005

Dam Length

840

Dam Height

24.5

River Or Stream

CACHE

Primary Dam Type

Earth

Surface Area

8.3

Hydraulic Height

18.5

Drainage Area

930

Nid Storage

158.23

Structural Height

24.3

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

25
       
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.