Rattle & Snap #21 Reservoir Report
Last Updated: December 13, 2025
Rattle & Snap #21 is a privately owned dam located on TribSugar Creek in Maury, Tennessee.
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Summary
Built in 1980, this earth dam stands at a structural height of 55.6 feet with a hydraulic height of 27.7 feet, providing a storage capacity of 4,600 acre-feet of water. The dam has a significant hazard potential but is currently assessed to be in satisfactory condition as of the last inspection in June 2020.
Managed by the Tennessee Safe Dams Program, Rattle & Snap #21 is regulated, permitted, inspected, and enforced by the state of Tennessee. Despite its moderate risk rating, there are no emergency action plans (EAP) in place, and the dam lacks inundation maps and updated emergency contacts. While the dam does not have outlet gates or locks, it features an uncontrolled spillway and covers a drainage area of 0.04 square miles. The dam's purpose and associated structures are not specified, but its primary function is known to be for water resource management.
Overall, Rattle & Snap #21 is a crucial water resource infrastructure in the Nashville District, providing storage and flood control benefits for the local community. Its location on TribSugar Creek and its ownership by a private entity highlight the importance of maintaining and monitoring the dam to ensure its continued safety and effectiveness in managing water resources in the region. For water resource and climate enthusiasts, understanding the details of this dam's construction, storage capacity, and regulatory oversight offers valuable insights into the intersection of infrastructure, safety, and environmental stewardship.
Year Completed |
1980 |
Dam Length |
4500 |
River Or Stream |
TRIBSUGAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
50 |
Hydraulic Height |
27.7 |
Drainage Area |
0.04 |
Nid Storage |
4600 |
Structural Height |
55.6 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Nid Height |
56 |
Seasonal Comparison
Weather Forecast
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.
Rattle & Snap #21