Maine Power

Construction Info


Lewiston, Maine

Lewiston, Maine

View Interactive Map | Download Map PDF

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.

* Latest construction update posted on May 29, 2014.

Permits & Approvals

Lewiston MPRP Permit Approval

08/09/2010

Approval for MPRP transmission lines with noted conditions
Download PDF


Lewsiton Planning Board Approval

06/02/2010

Plannning Board approval and conditions for MPRP
Download PDF


Larrabee Road Permit Approval

05/24/2010

Includes permit conditions set by Planning Board
Download PDF


Lewiston MPRP Permit Application

05/17/2010

Permit application for MPRP transmission lines approved by the PUC
Download PDF


Larrabee Road Wastewater Permit Approval

06/26/2009

Permit for rainwater drainage tank at Albion Rd Substation
Download PDF


News & Events

MPRP is nearly 95 percent complete

August 14, 2014

Crews set 5,000th structure in Bowdoinham
Read More


MPRP Wire Replacement in Auburn and Lewiston

May 28, 2014

Crews will be utilizing helicopters in Lewiston and Auburn to replace an existing ground wire.
Read More


Construction in Westbrook

April 4, 2014

Working outside of the Spring Street Substation
Read More


Section 160 in South Portland

March 3, 2014

115-kV transmission line upgrade
Read More


Central Maine Power Company and Burns & McDonnell receive award for MPRP

february 04, 2014

American Cultural Resources Association Industry Award – Private Sector
Read More


Major Milestone Reached in Northern Loop

November 07, 2013

4,000th Structure Installed
Read More


Final wood pole delivery for Maine Power Reliability Program

July 10, 2013

Poles were received at Irby materials yard in Leeds, Maine
Read More


1,500th structure has been set in the Central Loop

June 25, 2013

Structure is set off Bonin Road in Monmouth
Read More


Southern Loop/Southern Connector achieves milestone

June 21, 2013

500th structure set in Saco
Read More


Seacost Media reports on Maguire Road Substation autotransformer delivery

May 23, 2013

Transformed By Jennifer Feals
Read More


CMP Marks Milestones of its Maine Power Reliability Program

May 20, 2013

Governor LePage and others praise the project for customer benefits and contributions to Maine’s economy
Read More


MPRP sets 3,000th structure

May 13, 2013

Structure in Frankfort marks MPRP milestone
Read More


Section 229, a 115kV transmission line, is energized

May 13, 2013

Section 229 connects Riley Substation in Jay, to the Rumford IP Substation in Rumford
Read More


Transformer deliveries featured in Transmission & Distribution World

May 10, 2013

Two Large Autotransformers Due to Arrive in Maine
Read More


CMP Energizes 345,000 Volt Substation in Benton, Maine

May 02, 2013

New Substation and Transmission Line Will Enhance Service for CMP Customers
Read More


L.E. Myers act of altruism

April 15, 2013

MPRP contractor donates poles to new Lineworker Facility at KVCC
Read More


Attention to those considering using ATVs on the MPRP corridors

March 26, 2013

Maine officials warn 'mudders' to use caution
Read More


Milestone reached in Northern Loop

January 22, 2013

1,000 pole set in Winterport
Read More


Preparation for pole setting

January 11, 2013

January 11, 2013
Read More


CMP powers up Larrabee Road Substation in Lewiston

December 20, 2012

Featured in Sun Journal
Read More


Larrabee Road Substation is energized

December 20, 2012

WCSH 6 & WLBZ 2 News Center reports on this major milestone
Read More


What you should know about winter recreation in CMP’s corridors

December 12, 2012

Be Safe, Be Cautious, Be Aware…check for Trail Alerts
Read More


Update on new 345kV line

November 27, 2012

Construction nearly completed in Pownal, Durham, Auburn and Lewiston.
Read More


Improving the reliability of CMP’s transmission system

October 23, 2012

Construction is now under way at the Livermore Falls Substation
Read More


Supporting sportsmen

October 17, 2012

MPRP meets with SAM
Read More


1000 pole set in the Central Loop

October 04, 2012

The pole was set in Lewiston by the new Larrabee Road Substation
Read More


MPRP announces the mechanical completion of two new substations

October 02, 2012

Larrbee Road Substation in Lewiston and Raven Farm Substation in Cumberland
Read More


MPRP is featured in the Journal Tribune

September 24, 2012

CMP begins work on Kennebunk substation
Read More


New 345kV line that will connect Larrabee Road Substation and Surowiec Substation

September 19, 2012

Construction continues in Pownal, Durham, Auburn and Lewiston
Read More


Construction continues on the new 115kV line in Monmouth, Wales, Greene and Lewiston

September 19, 2012

Pole structures are being constructed and set followed by wire operations in select areas
Read More


Construction of new 345kV line near Larrabee Road Substation in Lewiston

Septemeber 19, 2012

Foundation work is ongoing
Read More


Maguire Road Substation makes the Bangor Daily News

September 13, 2012

CMP breaks ground on $30M substation in Kennebunk
Read More


CMP Transmission Line Construction Project Marks Milestone

August 29, 2012

Crews Set 2,000th Structure
Read More


Construction update of 345kV line

August 06, 2012

Work activities are ongoing in Lewiston, Pownal, Auburn and Durham
Read More


Update on 345kV line in Lewiston

July 24, 2012

Work is ongoing and is in various phases of construction
Read More


Crew of Albion Road Substation meets Wellness Challenge Initiative

July 12, 2012

Crew collected donations and food for The Waterville Food Pantry
Read More


Completing towers marks another MPRP milestone

July 10, 2012

CMP Completes Construction of Transmission Towers Over Penobscot River
Read More


Construction update of the new 345kV line that connects substations in Lewiston and Pownal

June 29, 2012

Work activities are ongoing in Lewiston, Pownal and will soon begin in Auburn
Read More


Construction update on the new 115kV line

June 29, 2012

Construction is ongoing in Monmouth, Wales, Greene and Lewiston
Read More


Environmental and engineering studies in Lewiston

June 28, 2012

The 2 week long studies are scheduled to begin in July
Read More


Bangor Daily News reports on MPRP construction over Penobscot River

June 26, 2012

Article highlights construction of lattice towers with the aid of a helicopter
Read More


Construction of steel and wooden 345kV poles in Lewiston

June 21, 2012

Construction is ongoing in the areas of Old Greene Road, Old Webster Road, and Grove Street
Read More


Central Maine Power Energizes First Electrical Substation for Maine Power Reliability Program

June 04, 2012

Advanced Technology a Milestone for CMP and Iberdrola USA
Read More


Autotransformer arrives at Larrabee Road Substation

May 23, 2012

The arrival of the Larrabe Road Substation marks MPRP Milestone
Read More


Construction of steel towers in Lewiston

May 21, 2012

First fully erected steel tower to be installed on May 21, 2012
Read More


Portland Press Herald reports on MPRP Milestone!

May 16, 2012

The delivery of the Larrabee Road Substation Autotransformer
Read More


Delivery of Larrabee Road Substation Autotransformer Saturday, May 19

May 12, 2012

Attention travelers! Possible delays on Route 202 between Greene and Lewiston
Read More


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
Read More


Bangor Daily News reports on the progress of the MPRP

May 02, 2012

CMP’s $1.4 billion upgrade project on schedule and budget
Read More


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
Read More


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
Read More


Construction update for Larrabee Road Substation

March 05, 2012

Construction continues
Read More


Construction activities in Lewiston

February 29, 2012

Preconstruction activities in progress for new 115 kV line by Merrill Road
Read More


Construction of 345 kV line in Lewiston

February 08, 2012

Crews prepare for construction of steel pole foundations for 345 kV line
Read More


Construction in Lewiston

February 6, 2012

Construction of a rebuilt line will begin in February
Read More


Detoured Snowmobile Trail Route in Lewiston

November 3, 2011

Hillside Family Riders' trail detoured around new Larrabee Road Substation
Read More


Clearing in Lewiston, Durham and Pownal

October 19, 2011

Clearing crews removing mats after completing clearing
Read More


Clearing crews in Lewiston progressing quickly

October 12, 2011

Moving south from Old Webster Road to Dyer Road
Read More


Larrabee Road Substation update

October 12, 2011

Construction at Larrabee Road Substation progresses quickly
Read More


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.
Read More


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.
Read More


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.
Read More


Albion Road Autotransformer Delivered

August 11, 2011

Photos of the massive 345-kV autotransformer being delivered to Benton from Searsport.
Read More


Various stages of construction in Lewiston

July, 18 2011

Site development at Larrabee Substation continues while other parts of Lewiston
Read More


Substation site development continues at Larrabee Road

July, 15 2011

Excavating and construction of foundation footing at new Larrabee Road Substation
Read More


Transmission & Distribution World features MPRP!

July 15, 2011

"Jobs Meet Reliability" - How the MPRP is Strengthening Maine's Grid and Economy
Read More


CMP donates Mud Pond to Stanton Bird Club

July 15, 2011

241 acres of land surrounding Mud Pond in Monmouth transferred for conservation
Read More


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.
Read More


Prep for New Section 251 in Livermore Falls

July 11, 2011

Crews prepare for new transmission line construction in the Section 200 corridor
Read More


Surveying in Lewiston

July 11, 2011

Crews surveying Section 64 corridor in preparation for clearing.
Read More


Larrabee Road Substation Development

July 5, 2011

Site development and transmission line work continue at the Larrabee Road Substation
Read More


Lewiston Substation and Transmission Line Work

June 13, 2011

Larrabee Road Substation site development continues as transmission line rebuild starts and clearing progresses.
Read More


Clearing to begin from Lewiston to Pownal

June 13, 2011

Corridor from new Larrabee Rd Substation to Suroweic Substation to be cleared soon
Read More


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
Read More


Larrabee Road Substation

3/31/2011

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


What's HappeningIn Your Town

Looking for project information about the Maine Power Reliability Program in your community? Select your town or city from the drop-down list to find construction updates, permits, maps and more.

* If your town's not here, then we're not there

Coopers Mills Road Substation Webcam

Click here to view our interactive video camera at the Coopers Mills Road Substation in Windsor, which includes close-up zoom capability and time-lapse photographs.