Sunset Lake Reservoir Report

Last Updated: December 23, 2025

Sunset Lake, also known as Colts Pond, is a private water resource located in Orange County, Vermont.


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Summary

Managed by the Vermont Department of Environmental Conservation, this picturesque lake serves primarily for recreational purposes, attracting water and climate enthusiasts alike. Constructed in 1850, the dam on Sunset Lake stands at a height of 12 feet and has a storage capacity of 180 acre-feet, providing a serene getaway for visitors seeking a peaceful retreat in nature.

With a surface area of 25 acres and a drainage area of 4.16 square miles, Sunset Lake offers a tranquil setting surrounded by the stunning landscape of Brookfield, Vermont. The dam, made of masonry and stone, has a multi-arch core and sits on a foundation of rock. Despite being assessed as in fair condition, the dam poses a significant hazard potential, prompting regular inspections every three years to ensure the safety of its structure and the surrounding environment.

While the last inspection in July 2015 found the dam to be in fair condition, continuous monitoring and maintenance are essential to mitigate risks and maintain the integrity of Sunset Lake. With its historical significance dating back to the 19th century, this private water resource remains a valuable asset for both recreation and conservation efforts in the region, offering a harmonious blend of natural beauty and environmental stewardship for water resource and climate enthusiasts to appreciate.

Year Completed

1850

Dam Length

100

Dam Height

12

River Or Stream

SUNSET BROOK

Primary Dam Type

Masonry

Surface Area

25

Hydraulic Height

12

Drainage Area

4.16

Nid Storage

180

Structural Height

12

Hazard Potential

Significant

Foundations

Rock

Nid Height

12
       
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.