Marshall State School Lake Dam Reservoir Report
Nearby: Wallys Lake Dam Marsh Lake Dam
Last Updated: December 19, 2025
Marshall State School Lake Dam, located in Nelson, Missouri, was completed in 1934 and serves as a recreational site for water resource and climate enthusiasts.
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Summary
The dam, with a height of 31 feet and a storage capacity of 133 acre-feet, is classified as an Earth dam with a Buttress core type. The primary purpose of the dam is for recreation, providing a serene and picturesque setting for visitors to enjoy.
Although Marshall State School Lake Dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, it has not undergone recent inspections or been subject to regulatory oversight. Despite this, the dam continues to provide a safe and enjoyable environment for recreational activities such as fishing, boating, and picnicking. With a surface area of 8 acres and a drainage area of 270 acres, the dam contributes to the local ecosystem and enhances the natural beauty of the surrounding Saline County landscape.
As a focal point for outdoor enthusiasts and nature lovers, Marshall State School Lake Dam offers a peaceful retreat for visitors to connect with the environment and appreciate the importance of water resources and climate conservation. With its historical significance and recreational value, the dam stands as a testament to the enduring relationship between humanity and nature in the heart of Missouri.
Year Completed |
1934 |
Dam Height |
31 |
River Or Stream |
TR-SALT FORK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
270 |
Nid Storage |
133 |
Structural Height |
31 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Blackwater River At Blue Lick
|
25cfs |
Missouri River At Glasgow
|
28400cfs |
Missouri River At Waverly
|
26800cfs |
Wakenda Creek At Carrollton
|
8cfs |
Missouri River At Boonville
|
29900cfs |
Mussel Fork Near Musselfork
|
12cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Marshall State School Lake Dam