Lewiston, Maine

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In Lewiston, the project will involve the construction of a new 345-115 kV substation, 115 kV and 345 kV transmission lines, and the rebuilding of 34.5 kV and 115 kV transmission lines.

New Transmission Lines

From the Greene-Lewiston municipal boundary running southward to the new  Larrabee Road Substation, approximately 1.4 miles of a new 115 kV transmission line will be constructed on the east side of the existing corridor. The new line will be constructed on single pole structures averaging 75 feet in height. Additionally in this corridor, a portion of the existing 115 kV transmission line will be relocated and rebuilt on H-frame structures averaging 75 feet in height and the existing structures will be removed.

From the Greene-Lewiston municipal boundary running westward to the Larrabee Road substation, approximately 1.8 miles of a new 345 kV transmission line will be constructed on H-frame structures averaging 75 feet in height.

From the Durham-Auburn municipal boundary running northward to the Larrabee Road Substation, approximately 9.5 miles of a new 345 kV transmission line will be constructed on the west side of the existing lines on H-frame and single-pole structures averaging 75 feet in height.

Rebuilt Transmission Lines

From the Greene-Lewiston municipal boundary running westward to the Gulf Island Substation, an existing 34.5 kV transmission line (Section 41) will be removed. Another existing 34.5 kV transmission line (Section 72) will be relocated and rebuilt on single-pole structures averaging 35 feet in height around the Larrabee Road Substation. The existing 115 kV transmission line (Section 212) will be relocated and rebuilt on single-pole structures averaging 75 feet in height and the existing H-frame structures will be removed from the municipal boundary to the Larrabee Road Substation.

From the Durham-Auburn municipal boundary running northward to the Larrabee Road Substation, approximately one mile of the existing 115 kV transmission line (Section 64) will be relocated and rebuilt on single-pole structures averaging 75 feet in height to the east of its current location within the existing corridor.

Larrabee Road Substation

The new substation will be located on a 70-acre parcel at the end of Larrabee Road approximately 1,100 feet east of its junction with Main Street (U.S. Route 202). Approximately 16.16 acres will remain permanently developed after the project’s completion. The substation yard will include construction of a control house to be located near the center of the yard, including sanitation facilities and a 1,500 gallon holding tank located adjacent to the building, and a drilled well for a potable water supply.

The purpose of the substation will be to step down voltage from 345 kV to 115 kV and to provide switching capacity, a common process that involves the transfer or discontinuance of electrical load. A total of eight 115 kV terminations and two 345 kV terminations will interconnect at the substation. System reliability will be greatly improved by this added infrastructure and the current system risks of extensive area outages will be greatly diminished by the added electrical supply.

Permits & Approvals

Lewiston MPRP Permit Approval

08/09/2010

Approval for MPRP transmission lines with noted conditions
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Lewsiton Planning Board Approval

06/02/2010

Plannning Board approval and conditions for MPRP
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Larrabee Road Permit Approval

05/24/2010

Includes permit conditions set by Planning Board
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Lewiston MPRP Permit Application

05/17/2010

Permit application for MPRP transmission lines approved by the PUC
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Larrabee Road Wastewater Permit Approval

06/26/2009

Permit for rainwater drainage tank at Albion Rd Substation
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News & Events

Construction of steel towers in Lewiston

May 21, 2012

First fully erected steel tower to be installed on May 21, 2012
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Portland Press Herald reports on MPRP Milestone!

May 16, 2012

The delivery of the Larrabee Road Substation Autotransformer
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Construction of the new 115 kV line in Monmouth, Wales, Greene and Lewiston

May 12, 2012

Construction includes the removal of 34.5 kV line to make room for the new 115 kV line
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Delivery of Larrabee Road Substation Autotransformer Saturday, May 19

May 12, 2012

Attention travelers! Possible delays on Route 202 between Greene and Lewiston
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Bangor Daily News reports on the progress of the MPRP

May 02, 2012

CMP’s $1.4 billion upgrade project on schedule and budget
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Construction scheduled to begin soon on 115 kV line in Monmouth and Wales

April 04, 2012

The 115 kV line will run from Monmouth into Wales through Greene and end in Lewiston
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Construction of the new 345 kV transmission line in Lewiston

March 19, 2012

Crews initiate the first of many phases in preparation for installing the 345 kV line
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Construction update for Larrabee Road Substation

March 05, 2012

Construction continues
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Construction activities in Lewiston

February 29, 2012

Preconstruction activities in progress for new 115 kV line by Merrill Road
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Construction of 345 kV line in Lewiston

February 08, 2012

Crews prepare for construction of steel pole foundations for 345 kV line
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Construction in Lewiston

February 6, 2012

Construction of a rebuilt line will begin in February
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Detoured Snowmobile Trail Route in Lewiston

November 3, 2011

Hillside Family Riders' trail detoured around new Larrabee Road Substation
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Clearing in Lewiston, Durham and Pownal

October 19, 2011

Clearing crews removing mats after completing clearing
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Clearing crews in Lewiston progressing quickly

October 12, 2011

Moving south from Old Webster Road to Dyer Road
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Larrabee Road Substation update

October 12, 2011

Construction at Larrabee Road Substation progresses quickly
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Clearing in Lewiston, Pownal and Durham

September 15, 2011

Clearing ongoing at Pond Rd in Lewiston. A second crew with start next week at Fickett Rd in Pownal and work toward Durham.
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Clearing and surveying continue in Wales, Greene and Lewiston

September 14, 2011

Clearing ongoing from Bull Run Rd in Wales to Merrill Road in Lewiston, and from Pond Rd south to Lisbon Rd in Lewiston.
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Crew Saves Detroit Barn

August 10, 2011

Anthony Iannello and Jared Haney, L.E. Myers Co., fought a barn fire on Troy Rd. in Detroit while returning from MPRP jobsite.
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Albion Road Autotransformer Delivered

August 11, 2011

Photos of the massive 345-kV autotransformer being delivered to Benton from Searsport.
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Various stages of construction in Lewiston

July, 18 2011

Site development at Larrabee Substation continues while other parts of Lewiston
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Substation site development continues at Larrabee Road

July, 15 2011

Excavating and construction of foundation footing at new Larrabee Road Substation
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Transmission & Distribution World features MPRP!

July 15, 2011

"Jobs Meet Reliability" - How the MPRP is Strengthening Maine's Grid and Economy
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CMP donates Mud Pond to Stanton Bird Club

July 15, 2011

241 acres of land surrounding Mud Pond in Monmouth transferred for conservation
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CMP's Policies Manage Osprey Nests Responsibly

July 12, 2011

Hundreds of ospreys nest on our utility poles. We share your concerns for the safety of these birds, and our company has policies and personnel in place to manage these nests responsibly.
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Prep for New Section 251 in Livermore Falls

July 11, 2011

Crews prepare for new transmission line construction in the Section 200 corridor
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Surveying in Lewiston

July 11, 2011

Crews surveying Section 64 corridor in preparation for clearing.
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Larrabee Road Substation Development

July 5, 2011

Site development and transmission line work continue at the Larrabee Road Substation
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Lewiston Substation and Transmission Line Work

June 13, 2011

Larrabee Road Substation site development continues as transmission line rebuild starts and clearing progresses.
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Clearing to begin from Lewiston to Pownal

June 13, 2011

Corridor from new Larrabee Rd Substation to Suroweic Substation to be cleared soon
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Herald/Telegram Feature: CMP & Local Timber Mat Producers

June 10, 2011

Portland Press Herald/ Maine Sunday Telegram article highlights work of local timber mat suppliers for the MPRP
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Larrabee Road Substation

3/31/2011

Clearing and earthwork continue for the site development of the new Larrabee Road Substation.
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