Turiff R. Reservoir Report

Last Updated: December 6, 2025

Turiff R.


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Summary

is a privately owned dam located in Mannford, Oklahoma, on the Little Salt Creek. Built in 1960, this earth dam stands at a height of 35 feet and has a length of 430 feet, providing a storage capacity of 90 acre-feet. Despite its low hazard potential, the dam is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, with the last one taking place in August 2011.

The primary purpose of Turiff R. is classified as 'Other', with a spillway type of 'Controlled'. The dam's risk assessment is rated as 'Very High (1)', indicating the need for vigilant monitoring and risk management measures. The surrounding area is at risk of inundation in case of a breach, emphasizing the importance of maintaining the dam's structural integrity and emergency preparedness.

Given its critical role in water resource management and flood control, Turiff R. serves as a vital infrastructure in the Tulsa District. With its strategic location and significance in the region, this dam underscores the importance of sustainable water resource practices and climate resilience for protecting communities and ecosystems downstream of Little Salt Creek.

Year Completed

1960

Dam Length

430

Dam Height

35

River Or Stream

LITTLE SALT CREEK

Primary Dam Type

Earth

Surface Area

1

Hydraulic Height

35

Nid Storage

90

Structural Height

35

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

35
       
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.