Chisholm Dam Reservoir Report

Last Updated: December 8, 2025

Chisholm Dam, located in Louisa, Virginia, is a state-regulated structure owned by an unspecified entity with a primary purpose of recreation.


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Summary

The dam, constructed of earth materials, stands at a height of 22 feet and spans a length of 200 feet, providing storage capacity of 120 acre-feet and a normal storage level of 94 acre-feet. Situated on TR-LONG CREEK, the dam's hazard potential is currently listed as undetermined, with a condition assessment of not rated.

Despite lacking certain key information such as the year of completion and detailed structural data, Chisholm Dam serves as a significant recreational resource in the region. While the dam's risk assessment, emergency action plan preparation, and regulatory compliance status are not specified, its location and design indicate a vital role in water management and public enjoyment of the surrounding area. Water resource and climate enthusiasts are encouraged to explore Chisholm Dam and appreciate its contribution to the local ecosystem and community.

As water resource management becomes increasingly crucial in the face of climate change, understanding the role of structures like Chisholm Dam is essential. While the dam's specific features and risk management measures remain undisclosed, its presence on TR-LONG CREEK underscores its importance in maintaining water supply, flood control, and recreational opportunities for residents of Louisa, Virginia. As efforts to address climate-related challenges continue, Chisholm Dam stands as a testament to the intersection of water resources, infrastructure, and environmental stewardship in the region.

Dam Length

200

Dam Height

22

River Or Stream

TR-LONG CREEK

Hydraulic Height

22

Nid Storage

120

Structural Height

22

Hazard Potential

Undetermined

Nid Height

22
       
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.