Boston Lakewood Park Dam Reservoir Report

Last Updated: December 22, 2025

Located in Robertsville, Missouri, the Boston Lakewood Park Dam is a private recreational structure designed by Ray Boston in 1970.


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Summary

Standing at a height of 41 feet and stretching 1080 feet in length, this earth dam with a stone core serves the primary purpose of providing recreational opportunities. The dam boasts a storage capacity of 416 acre-feet and covers a surface area of 28 acres, drawing visitors to enjoy the scenic surroundings and activities available.

Despite its satisfactory condition assessment, the Boston Lakewood Park Dam is classified as having a high hazard potential, with a moderate risk level assigned. Regular inspections and enforcement by the DAM AND RESERVOIR SAFETY PROG ensure the safety and integrity of the structure, with the last inspection conducted in January 2017. With a drainage area of 222 square miles and a maximum discharge capacity of 2104 cubic feet per second, the dam plays a crucial role in managing water resources and protecting the surrounding environment.

As a key feature in the TRIB-PIN OAK CREEK watershed, the Boston Lakewood Park Dam serves as a vital element in the local ecosystem and water management infrastructure. With its impressive design and recreational offerings, this dam is not only a popular destination for outdoor enthusiasts but also a critical asset in maintaining water quality and flood control in Franklin County, Missouri.

Year Completed

1970

Dam Length

1080

Dam Height

41

River Or Stream

TRIB-PIN OAK CREEK

Surface Area

28

Drainage Area

222

Nid Storage

416

Structural Height

41

Outlet Gates

None

Hazard Potential

High

Foundations

Rock

Nid Height

41
       
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.