Grundy #1 Reservoir Report

Last Updated: December 5, 2025

Grundy #1, located in Tracy City, Tennessee, is a state-regulated earth dam with a height of 18.6 feet and a hydraulic height of 13.8 feet.


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Summary

Completed in 1934, this dam on Little Fiery Gizzard Creek has a storage capacity of 231 acre-feet and covers a surface area of 14.7 acres. Despite its high hazard potential and poor condition assessment, Grundy #1 is inspected annually by the Tennessee Safe Dams Program to ensure its structural integrity and public safety.

With a drainage area of 1.01 square miles, Grundy #1 poses a moderate risk, but the lack of emergency action plans and inundation maps raises concerns about its preparedness for potential disasters. While the dam is currently in need of maintenance and improvements, its critical role in water resource management underscores the importance of ongoing monitoring and risk assessment. As climate change continues to impact water resources, ensuring the safety and resilience of Grundy #1 is essential for protecting both the environment and surrounding communities.

As enthusiasts of water resources and climate resilience, it is crucial to advocate for the proper maintenance and management of dams like Grundy #1 to mitigate risks and adapt to changing environmental conditions. By supporting initiatives that prioritize dam safety and emergency preparedness, we can help safeguard our water infrastructure and ensure the sustainable management of our natural resources for future generations.

Year Completed

1934

Dam Length

390

River Or Stream

LITTLE FIERY GIZZARD CK

Primary Dam Type

Earth

Surface Area

14.7

Hydraulic Height

13.8

Drainage Area

1.01

Nid Storage

231

Structural Height

18.6

Outlet Gates

None

Hazard Potential

High

Nid Height

19
       
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.