Trayler W.J. Jr Reservoir Report

Last Updated: December 9, 2025

Trayler W.J.


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Summary

Jr is a privately owned earth dam located in Grady County, Oklahoma, near the city of Cole. Completed in 1960, this dam stands at a height of 30 feet and has a storage capacity of 200 acre-feet. With a controlled spillway and a maximum discharge of 1240 cubic feet per second, Trayler W.J. Jr serves a primary purpose of "Other" and is regulated by the Oklahoma Water Resources Board (OWRB).

Despite being classified as a low hazard potential structure, Trayler W.J. Jr is considered to have a very high risk level, with a risk assessment rating of 1. The dam has not been rated for its condition, but it undergoes inspections every 5 years, with the last one being conducted in August 2010. The dam has a single valve outlet gate and is situated along Bridge Creek, within the Tulsa District of Oklahoma. Although it is not owned or funded by any federal agency, Trayler W.J. Jr is subject to state permitting, inspection, and enforcement.

In case of emergencies, the dam does not have an Emergency Action Plan (EAP) prepared, and there are no inundation maps available. With its proximity to residential areas and the high risk associated with it, Trayler W.J. Jr underscores the importance of proactive risk management measures to ensure the safety of the surrounding community and the integrity of the dam structure.

Year Completed

1960

Dam Length

350

Dam Height

30

River Or Stream

BRIDGE CR

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

30

Nid Storage

200

Structural Height

30

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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.