SNOFLO
 


LONGWOOD

RESERVOIR LEVELS
Tribwolf River
May 13, 2025


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Located in Memphis, Tennessee, Longwood is a privately owned dam on the TRIBWOLF RIVER, built in 1965 primarily for state-regulated purposes. Standing at a structural height of 10.7 feet and a hydraulic height of 9.4 feet, Longwood has a NID height of 11 feet and a length of 725 feet, providing a storage capacity of 44 acre-feet. With a drainage area of 0.03 square miles and a surface area of 6.4 acres, the dam poses a significant hazard potential but has been deemed to be in satisfactory condition as of the last inspection in September 2020.

Managed by the Tennessee Safe Dams Program, Longwood's spillway is uncontrolled and the dam lacks outlet gates. The risk assessment for Longwood is rated as moderate (3), indicating a need for appropriate risk management measures. While the dam has not been modified in recent years, it undergoes inspections every two years to ensure its continued safety and functionality. Longwood's proximity to the Wolf River and its vital role in water resource management make it a key structure in the region for both water resource and climate enthusiasts to monitor and study.

Overall, Longwood serves as a crucial infrastructure for water storage and regulation in Shelby County, Tennessee, contributing to flood control and water supply management in the area. With its satisfactory condition and state-regulated status, Longwood stands as a significant yet manageable risk, highlighting the importance of regular inspections and risk assessment for the safety and security of the surrounding communities. For water resource and climate enthusiasts, Longwood presents a fascinating case study in dam construction, regulation, and maintenance within the context of a changing climate and evolving water management practices.

Year_Completed 1965
River_Or_Stream TRIBWOLF RIVER
Dam_Length 725
Primary_Dam_Type Earth
Surface_Area 6.4
Hydraulic_Height 9.4
Drainage_Area 0.03
Nid_Storage 44
Structural_Height 10.7
Outlet_Gates None
Hazard_Potential Significant
Nid_Height 11
       

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