Glen Rose Lake Dam Reservoir Report

Last Updated: December 6, 2025

Glen Rose Lake Dam, located in Jefferson County, Missouri, was completed in 1962 and serves primarily for recreational purposes.


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Summary

This private-owned earth dam with a height of 30 feet impounds water from the TR TO ROCK CREEK for a storage capacity of 48 acre-feet. The dam has a surface area of 3 acres and drains an area of 90 square miles.

Although the dam has a high hazard potential, its current condition is not rated as the last inspection took place in 1981. The dam does not have an Emergency Action Plan (EAP) prepared, and there is limited information available on risk assessment and management measures. With its scenic location and opportunities for outdoor activities, Glen Rose Lake Dam is a popular spot for water resource and climate enthusiasts to explore and enjoy.

Year Completed

1962

Dam Height

30

River Or Stream

TR TO ROCK CREEK

Primary Dam Type

Earth

Surface Area

3

Drainage Area

90

Nid Storage

48

Structural Height

30

Hazard Potential

High

Foundations

Unlisted/Unknown

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.