Caspian Lake Reservoir Report

Last Updated: December 7, 2025

Caspian Lake, located in Greensboro, Vermont, is a picturesque body of water with a rich history dating back to its completion in 1929.


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Summary

This man-made reservoir serves as a vital source of hydroelectric power and offers recreational opportunities for visitors to enjoy. With a dam height of 7 feet and a storage capacity of 4300 acre-feet, Caspian Lake plays a significant role in the local community's water resource management.

Despite its importance, recent assessments have raised concerns about the dam's condition, with a poor rating and significant hazard potential. The dam is under the jurisdiction of the Vermont Department of Environmental Conservation (DEC), which oversees its regulation, inspection, and enforcement. It is essential for stakeholders to address these maintenance issues to ensure the safety and sustainability of Caspian Lake for both its hydroelectric function and recreational use.

As climate change continues to impact water resources, the responsible management of structures like Caspian Lake becomes increasingly crucial. Engaging in risk assessments, emergency preparedness planning, and regular inspections are essential steps to mitigate potential hazards and ensure the long-term viability of this valuable water source. It is imperative for local government authorities and stakeholders to work together to address the dam's maintenance needs and safeguard the future of Caspian Lake for generations to come.

Year Completed

1929

Dam Length

205

Dam Height

7

River Or Stream

GREENSBORO BROOK

Primary Dam Type

Earth

Surface Area

789

Hydraulic Height

7

Drainage Area

7.05

Nid Storage

4300

Structural Height

7

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

7
       
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.