Hart Development Lake Dam-Sect 15 Reservoir Report

Last Updated: December 6, 2025

Hart Development Lake Dam-Sect 15 is a privately owned earth dam located in Dent County, Missouri.


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Summary

Completed in 1963, this dam serves primarily for recreational purposes, with a storage capacity of 54 acre-feet and a surface area of 4 acres. The dam stands at a height of 25 feet and is classified as low hazard potential.

Situated on TR-LOST CREEK, this dam is not state-regulated and does not fall under state jurisdiction for permitting, inspection, or enforcement. With a core type of buttress and an unlisted/unknown foundation, Hart Development Lake Dam-Sect 15 has not been rated for its condition assessment and does not have an emergency action plan (EAP) in place. Despite its low hazard potential, water resource and climate enthusiasts may find this dam's history and design intriguing for its contribution to the surrounding recreational area and the management of water resources in the region.

In the picturesque setting of Cook Station, Missouri, this dam represents a blend of human engineering and natural beauty, offering a glimpse into the intersection of water management and recreational enjoyment. As enthusiasts explore the details of Hart Development Lake Dam-Sect 15, they can appreciate the strategic placement of this structure along TR-LOST CREEK and its role in providing a serene environment for visitors to enjoy outdoor activities.

Year Completed

1963

Dam Height

25

River Or Stream

TR-LOST CREEK

Primary Dam Type

Earth

Surface Area

4

Drainage Area

85

Nid Storage

54

Structural Height

25

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

25
       
Seasonal Comparison

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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.