Williams Reservoir Report
Nearby: Jones Creek Luray
Last Updated: December 6, 2025
Williams is a private dam located in Pinson, Tennessee, along Cypress Creek.
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Summary
Built in 1974, this earth dam stands at a structural height of 15.3 feet and has a hydraulic height of 11.9 feet. With a storage capacity of 66 acre-feet and a drainage area of 0.11 square miles, Williams serves a crucial role in managing water resources in the region.
Despite being classified as having a low hazard potential, Williams is deemed to have a moderate risk level. The dam has not been rated for its condition assessment, and its last inspection was conducted in June 2016. While it lacks certain regulatory features like an Emergency Action Plan (EAP) and updated emergency contacts, the dam continues to play a significant role in water management in Chester County.
Williams is an essential structure in the Nashville District, providing flood control along Cypress Creek. With its uncontrolled spillway and moderate risk assessment, this dam underscores the importance of ongoing monitoring and maintenance to ensure the safety and efficiency of water resources in the area. For water resource and climate enthusiasts, Williams serves as a focal point for understanding the intersection of infrastructure, risk management, and environmental stewardship in Tennessee.
Year Completed |
1974 |
Dam Length |
298 |
River Or Stream |
CYPRESS CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
11.9 |
Drainage Area |
0.11 |
Nid Storage |
66 |
Structural Height |
15.3 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Williams