Maryland Farms Det # 2 Reservoir Report

Last Updated: December 11, 2025

Maryland Farms Detention #2 is a private earth dam located in Franklin, Tennessee, along the Tributary of Little Harpeth River.


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Summary

Built in 1983, the dam stands at a hydraulic height of 6.1 feet and a structural height of 18.9 feet, with a length of 635 feet. It has a normal storage capacity of 11 acre-feet and a maximum storage capacity of 81 acre-feet, serving a drainage area of 0.54 square miles.

The dam is under the regulatory authority of the Tennessee Safe Dams Program, which ensures that the structure is permitted, inspected, and enforced in compliance with state regulations. Despite being designated as having a high hazard potential, the dam's condition assessment in May 2020 reported it as satisfactory. In case of emergencies, however, there is no Emergency Action Plan (EAP) prepared for the dam, raising some concerns regarding its risk management measures and preparedness.

With its critical role in flood control and water resource management, Maryland Farms Detention #2 serves as a vital infrastructure in the region. Its location in Williamson County highlights the importance of maintaining and monitoring the dam to ensure the safety of the surrounding community and the stability of the water supply in the area. Climate enthusiasts and water resource experts alike can appreciate the significance of this structure and the need for ongoing vigilance in its oversight and maintenance.

Year Completed

1983

Dam Length

635

River Or Stream

TRIBLITTLE HARPETH RIVER

Primary Dam Type

Earth

Surface Area

2.5

Hydraulic Height

6.1

Drainage Area

0.54

Nid Storage

81

Structural Height

18.9

Outlet Gates

None

Hazard Potential

High

Nid Height

19
       
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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.