Netties Greenhouse Lake Dam Reservoir Report

Last Updated: December 8, 2025

Netties Greenhouse Lake Dam, located in Franklin, Missouri, serves as a vital irrigation source for local agricultural needs.


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Summary

Built in 1960, this earth dam stands at a height of 30 feet and has a storage capacity of 160 acre-feet, with a normal storage level of 85 acre-feet. The dam also caters to fire protection, stock, small fish pond, and recreational purposes, making it a versatile resource for the community.

Despite its low hazard potential, Netties Greenhouse Lake Dam lacks a spillway and inspection frequency, which raises concerns about its long-term safety and maintenance. The dam, situated on TR to St Johns Creek, is privately owned and not regulated by the state, highlighting the importance of proactive monitoring and management by its owners. With no condition assessment available, there is a need for increased oversight and emergency preparedness measures to ensure the dam's reliability in the face of changing climate conditions.

As climate change continues to impact water resources, the role of dams like Netties Greenhouse Lake Dam in sustaining local ecosystems and communities becomes increasingly significant. With its proximity to Washington and a drainage area of 230 acres, the dam's structural integrity and operational efficiency are key factors in managing water supply and mitigating potential risks in the region. Collaborative efforts between private owners, regulatory agencies, and stakeholders will be essential in safeguarding this essential water infrastructure for future generations.

Year Completed

1960

Dam Height

30

River Or Stream

TR TO ST JOHNS CREEK

Primary Dam Type

Earth

Surface Area

10

Drainage Area

230

Nid Storage

160

Structural Height

30

Hazard Potential

Low

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.