Triple Z Dam Reservoir Report

Last Updated: December 5, 2025

Triple Z Dam, also known as Jessee Dam, is a private-owned structure located in Amherst, Virginia, along TR-MAPLE CREEK.


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Summary

This earth dam stands at a height of 28 feet and stretches 600 feet in length, providing recreational opportunities in the area. With a storage capacity of 454 acre-feet and a normal storage of 214 acre-feet, the dam covers a surface area of 24 acres within a drainage area of 0.62 square miles.

Managed by the Department of Conservation and Recreation in Virginia, Triple Z Dam has a low hazard potential and is currently in satisfactory condition as per the most recent inspection in 2017. The dam's emergency action plan meets guidelines, ensuring preparedness in case of any unforeseen events. The structure has not undergone any modifications since its completion, reflecting its stable and reliable design to support recreational activities and contribute to the local water resource management.

Triple Z Dam serves as a vital asset for water resource and climate enthusiasts, offering a glimpse into sustainable infrastructure development for recreational purposes. With its strategic location and regulated management, the dam exemplifies a successful collaboration between private ownership and state oversight in ensuring the safety and functionality of water structures. This earth dam stands as a testament to responsible water management practices in the region, catering to both leisure and environmental conservation needs.

Dam Length

600

Dam Height

28

River Or Stream

TR-MAPLE CREEK

Primary Dam Type

Earth

Surface Area

24

Hydraulic Height

28

Drainage Area

0.62

Nid Storage

454

Structural Height

28

Hazard Potential

Low

Nid Height

28
       
Seasonal Comparison

Weather Forecast

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.