Windsor, Maine

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The part of the program located in the Town of Windsor involves the construction of a new substation (Coopers Mills Road), the decommissioning of the existing substation (Maxcys) and work in three transmission line corridors that traverse the Town.

Decommissioning of Maxcy’s Substation

Maxcy’s Substation is a major hub of the existing transmission grid, providing 115 kV service to most of CMP’s northern service territory. The substation will be decommissioned and replaced with a new substation (see below). The area will become part of an existing right-of-way where three transmission corridors converge. 

Construction of Coopers Mills Road Substation

A new substation will be located in an area just west of Coopers Mills Road. A 2,700 foot permanent gravel access road will be constructed on the north side of Maxcy’s Mill Road. The total area of the site, including substation yard and access road, will be approximately 30 acres. A new 170-foot microwave tower will be installed at the substation for communications purposes during outages.

The substation will be surrounded by chain link fencing. There will be a control house and a holding tank within the substation yard, and lighting along the perimeter fence, above the control house door, and within the yard. 

Transmission Line Corridors

Construction within an approximate 13.6 miles of transmission line corridors will include the following:

West of Coopers Mills Road Substation: The project in this area will include the installation of a new 345 kV line (Section 3025), which will be primarily constructed on 2-pole wooden H-frame structures approximately 75 feet in height; and the rebuilding of two existing 115 kV lines (Sections 60 and 88), which will be primarily constructed on single wooden poles approximately 75 feet in height

North of Coopers Mills Road Substation: The project in this area will include the installation of a new 345 kV line (Section 3024), which will be primarily constructed on 2-pole wooden H-frame structures approximately 75 feet in height, and the rebuild of two existing 115 kV transmission lines on single pole structures averaging 75 feet in height.

East of Coopers Mills Road Substation: The project in this area will include the installation of a new 115 kV line (Section 254), which will be primarily constructed on 2-pole wooden H-frame structures

Permits & Approvals

Windsor Floodplain Management Permit Renewal

02/07/2011

Renewal of floodplain management permit
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Windsor Floodplain Management Permit Approval

07/31/2010

Approval of permit by planning board and/or CEO
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Windsor Floodplain Management Application

07/21/2010

Application submitted to town for necessary permits
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Windsor Shoreland Zoning Permit Amendment Approval

07/13/2010

Approval of amendment to original shoreland zoning permit application
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Windsor Shoreland Zoning Permit Amendment

06/28/2010

Amendment to original permit application
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Windsor Shoreland Zoning Permit Approval

12/07/2009

Approval of permit by planning board and/or CEO
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Windsor Shoreland Zoning Permit Application

10/05/2009

Application submitted to town for necessary permits
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Coopers Mills Wasterwater Permit

06/29/2009

Signed Permit for rainwater drainage tank at Coopers Mills Substation
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News & Events

Clearing operations in Windsor

January 16, 2012

Clearing continues in Windsor
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Site development activities at Coopers Mills Road Substation

December 21, 2011

Occasional blasting will be occurring though December 2011 and January 2012
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Clearing operations in China & Windsor

December 16, 2011

Clearing activities continue in China & Windsor
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Transmission line work continues in Windsor, Chelsea, and Farmingdale

October 19, 2011

Crews continue to string conductor from Chelsea to Windsor
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Line Rebuild near completion from Windsor to Chelsea

September 29, 2011

Rebuild of existing 115 kV line nearly complete in Windsor, Whitefield, Augusta, Chelsea
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Transmission line rebuild nearing completion from Windsor to Chelsea

September 14, 2011

Transmission line rebuild nears completion as work continues by River Rd and Hankerson Rd in Chelsea
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Transmission line construction progresses in Windsor

September, 14 2011

Transmission line construction is on going in the vicinity of Griffin Road
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Surveying from Windsor to Benton

July, 28 2011

Crews are surveying and flagging the Section 67 corridor from Windsor to Benton
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Coopers Mills Substation site development has begun

July, 28 2011

Coopers Mills Substation site development has begun
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Section 60 reconstruction continues

July, 18 2011

The reconstruction of Section 60 makes progress in Chelsea, Windsor
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Coopers Mills Substation in Windsor

July, 18 2011

Site Development for the new Coopers Mills Substation scheduled to begin next month
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Rebuild of Section 60 and Section 88

July 11, 2011

Transmission line construction progresses in Windsor, Augusta and Chelsea
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Section 60 Rebuild Progresses

July 5, 2011

Reconstruction of Section 60 in Windsor and Chelsea continues
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Transmission Line Construction in Chelsea, Windsor and Augusta

June 13, 2011

Rebuild of existing lines in Chelsea and Augusta continues as Sec. 41 in Windsor removed.
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Clearing continues, construction begins from Windsor to Monmouth

5-3-2011

Clearing operations continue from Chelsea to Monmouth and crews are completing clearing operations and construction transmission lines from Chelsea to Windsor
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Clearing Windsor to Chelsea Continues

4/12/2011

Clearing in Windsor, Whitefiled, Augusta and Chelsea continues between Griffin Road and White' Junkyard on Goodwill Drive
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