Howard Lake Dam Reservoir Report

Last Updated: December 6, 2025

Howard Lake Dam, located in Callaway, Missouri, is a privately owned earth dam primarily used for recreation on the TR-Cedar Creek.


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Summary

Built in 1966, this 40-foot tall structure offers a storage capacity of 133 acre-feet and covers a surface area of 10 acres. Despite its low hazard potential and moderate risk assessment, the dam is regulated, permitted, inspected, and enforced by the state's Dam and Reservoir Safety Program to ensure safety and compliance.

Managed by private owners, Howard Lake Dam is situated within a scenic environment, attracting water resource and climate enthusiasts alike. Its uncontrolled spillway and buttress core type contribute to its structural stability, while the dam's state-regulated status ensures regular inspections and enforcement of safety measures. With a drainage area of 240 acres and a maximum discharge capacity, the dam serves as a vital recreational asset in the region.

For those interested in the intersection of water management and environmental stewardship, the Howard Lake Dam offers a fascinating case study. With a history of responsible maintenance and a focus on risk management, this earth dam stands as a testament to the importance of effective regulation and oversight in preserving natural resources for recreational enjoyment and ecological sustainability in the face of changing climate conditions.

Year Completed

1966

Dam Length

500

Dam Height

40

River Or Stream

TR-CEDAR CREEK

Primary Dam Type

Earth

Surface Area

10

Drainage Area

240

Nid Storage

133

Structural Height

40

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

40
       
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.