Sherrill Bill Reservoir Report

Last Updated: January 3, 2026

Sherrill Bill is a privately owned earth dam located in Vinson, Oklahoma, built in 1978 by the USDA NRCS.


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Summary

This dam is regulated by the Oklahoma Water Resources Board and is inspected, permitted, and enforced by state agencies. With a height of 25 feet and a length of 347 feet, Sherrill Bill serves a primary purpose of "Other" and has a maximum storage capacity of 50 acre-feet.

Despite its low hazard potential, Sherrill Bill is classified as having a very high risk level, indicating the need for careful monitoring and management. The dam features a controlled spillway and one valve outlet gate. The last inspection of Sherrill Bill was conducted in November 2010, with an inspection frequency of 5 years. The condition of the dam is currently rated as "Not Rated," and it does not have an Emergency Action Plan in place.

For water resource and climate enthusiasts, Sherrill Bill provides a fascinating case study of a privately owned earth dam in Oklahoma. With its unique design and regulatory oversight, this dam offers insight into the complexities of managing water resources in the face of climate change and increasing risk levels. Continued monitoring and maintenance of Sherrill Bill will be crucial to ensure its safety and functionality for years to come.

Year Completed

1978

Dam Length

347

Dam Height

25

River Or Stream

TR-HORSE CR

Primary Dam Type

Earth

Hydraulic Height

25

Nid Storage

50

Structural Height

25

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.