Green River Reservoir Dike Reservoir Report

Last Updated: December 7, 2025

The Green River Reservoir Dike in Hyde Park, Vermont, is a crucial structure for hydroelectric purposes, designed by Charles T.


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Summary

Main and completed in 1947. This earth dam stands at a height of 23 feet and spans 248 feet in length, holding a storage capacity of 7500 acre-feet in the reservoir. The dam is primarily made of stone and built on a soil foundation, with a significant hazard potential but currently rated as "Not Rated" in its condition assessment.

Located on Baldin Brook, the Green River Reservoir Dike is owned by the local government and falls under state jurisdiction in Vermont. Despite being a non-federal structure, it plays a vital role in water resource management in the area. The dam has not been updated or inspected since May 1998, with an inspection frequency of 10 years, raising concerns about its current state and readiness for potential emergencies.

Water resource and climate enthusiasts should take note of the Green River Reservoir Dike as a key component of the region's hydroelectric infrastructure. With its historical significance and essential role in water storage and management, ongoing monitoring and maintenance efforts are crucial to ensure the safety and functionality of this important structure.

Year Completed

1947

Dam Length

248

Dam Height

23

River Or Stream

BALDIN BROOK

Primary Dam Type

Earth

Surface Area

620

Hydraulic Height

23

Drainage Area

13.8

Nid Storage

7500

Structural Height

23

Hazard Potential

Significant

Foundations

Soil

Nid Height

23
       
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.