Summit Lake Reservoir Report

Last Updated: December 15, 2025

Summit Lake, also known as Misty Lake, is a private water resource located in Norman, Oklahoma.


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Summary

The lake is regulated by the Oklahoma Water Resources Board and serves primarily for recreational purposes. The dam, completed in 1960, is of earth construction with a height of 21 feet and a length of 810 feet, providing a storage capacity of 200 acre-feet and a surface area of 18 acres.

With a spillway type of Controlled and a hazard potential rated as High, Summit Lake poses a risk of flooding in the event of a discharge. However, the dam is currently in fair condition as of the last assessment in January 2021. The lake has a very high risk assessment rating and is under state jurisdiction for regulation, permitting, inspection, and enforcement. Despite these risks, Summit Lake remains a popular destination for outdoor enthusiasts seeking recreational activities in the Cleveland County area.

Overall, Summit Lake offers a picturesque setting for water and climate enthusiasts to enjoy various recreational activities while being mindful of the potential hazards associated with the dam structure. With its tranquil waters and scenic surroundings, this private lake serves as a valuable resource for the local community and visitors alike, highlighting the importance of proper maintenance and safety measures to ensure the well-being of all who enjoy its beauty.

Year Completed

1960

Dam Length

810

Dam Height

21

River Or Stream

TRIBUTARY TO ROCK CREEK

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

21

Nid Storage

200

Structural Height

21

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

21
       
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.