Ina May Reservoir Report
Nearby: Mercer Logan Glenn
Last Updated: December 5, 2025
Ina May is a privately owned dam located in Franklin, Tennessee, with a primary purpose of providing recreational opportunities.
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Summary
Constructed in 2011, this earth dam stands at a hydraulic height of 29 feet and a structural height of 31.4 feet, creating a reservoir with a normal storage capacity of 113 acre-feet. The dam is situated on the Tributary Laurel Branch and is under the jurisdiction of the Tennessee Safe Dams Program, which oversees its permitting, inspection, and enforcement.
Despite being categorized as having a low hazard potential, Ina May has a moderate risk assessment rating of 3, indicating some level of concern for potential risks associated with the dam. However, as of the last inspection in January 2021, the dam was found to be in satisfactory condition. With a surface area of 9.9 acres and a drainage area of 0.11 square miles, Ina May provides both recreational enjoyment and serves as a vital water resource in the region. Water resource and climate enthusiasts can appreciate the efforts taken to ensure the safety and functionality of this essential infrastructure.
Year Completed |
2011 |
Dam Length |
425 |
River Or Stream |
TRIBLAUREL BRANCH |
Primary Dam Type |
Earth |
Surface Area |
9.9 |
Hydraulic Height |
29 |
Drainage Area |
0.11 |
Nid Storage |
143 |
Structural Height |
31.4 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
31 |
Seasonal Comparison
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Nearby Streamflow Levels
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.
Ina May