Jewell Brook Site No. 1 Reservoir Report

Last Updated: December 14, 2025

Jewell Brook Site No.


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Summary

1, also known as Upper Jewell Brook, is a critical flood risk reduction structure located in Ludlow, Vermont. Constructed in 1969 by the USDA NRCS, this earth dam stands at a height of 58 feet, with a hydraulic height of 57 feet and a structural height of 69 feet. With a storage capacity of 521 acre-feet and a drainage area of 2.09 square miles, this dam plays a crucial role in protecting the surrounding area from potential flooding events.

Managed by the DEC and regulated by the state of Vermont, Jewell Brook Site No. 1 has a high hazard potential and is classified as being in fair condition. Despite its moderate risk assessment rating, this dam serves as a vital piece of infrastructure for flood control in the region. With its uncontrolled spillway and stone core, this structure is designed to withstand and mitigate the impact of extreme weather events, ensuring the safety of local residents and the stability of the surrounding environment.

As a key component of the flood risk reduction system in Windsor County, Vermont, Jewell Brook Site No. 1 plays a crucial role in protecting the community from potential disasters. With its history of successful operation and ongoing regulatory oversight, this dam stands as a testament to the importance of water resource management and climate resilience efforts in the face of changing environmental conditions. It serves as a vital example of how proactive measures can help mitigate the impacts of climate change on our water resources and infrastructure.

Year Completed

1969

Dam Length

450

Dam Height

58

River Or Stream

JEWELL BROOK

Primary Dam Type

Earth

Surface Area

22.5

Hydraulic Height

57

Drainage Area

2.09

Nid Storage

521

Structural Height

69

Hazard Potential

High

Foundations

Soil

Nid Height

69
       
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.