Green Mountain Power Huntington Falls Hydro Redevelopment

Increasing generation capacity.

Weybridge, VT
Delivery Method
CM at-Risk
Green Mountain Power
Year Complete

Project Overview

This project included the redevelopment of two powerhouses originally constructed in 1927 and 1989. Work included the complete replacement of the generation equipment in the original 1927 powerhouse including two turbines and generators, hydraulic power units, cooling water systems and associated electrical switchgear. The original powerhouse was also improved and architecturally restored with historic preservation in mind.

To improve operational efficiency, the two intakes for the respective powerhouses were combined into a single system. This allowed one new state-of-the-art trash rack raker to replace two existing units at the end of their useful lifespan. Other intake work included a new control building, deep sluice gate and trash rack air blast system to better manage debris.

At the completion of this project, generation capacity was increased by 25%.

PC’s four-decade collaboration with Green Mountain Power began with the construction of the Bolton Falls Hydroelectric Plant in 1985. Today, our Special Projects Group continues to provide key construction services on over 200 contracts in Vermont, New Hampshire and New York.


Increase in Generation Capacity


MWH Annual Power Provided by Dam

Our Clients

GMP has very specialized needs and complex infrastructure at our many sites across Vermont, New Hampshire and New York. PC has been instrumental in our ability to keep up with the ever-changing needs of our industry over the past two decades, delivering exceptional service and top-notch quality construction every step of the way.

Mari McClure

President and CEO • Green Mountain Power