Maine Power

Construction Info

Saco, Maine

Saco, Maine

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The part of the MPRP located in Saco involves the construction of a new 345 kV transmission line and the rebuilding of a 115 kV transmission line and 34.5 kV transmission line within the existing CMP corridor.

The corridor extends approximately 6.75 miles from the municipal border of Saco/Scarborough to the existing Louden Substation and continues to the Saco River where it crosses into Biddeford. Structure heights will vary due to terrain and the need to achieve spans that will avoid or minimize impacts to natural resources.

The new 345 kV transmission line, Section 3021, will be installed roughly in the center of the existing corridor on H-frame structures approximately 75 feet in height. The existing 115 kV transmission line, Section 238, currently runs on H-frame structures approximately 45 feet in height, which will be removed and replaced with single-pole structures approximately 75 feet in height. A three-pole structure will be installed at the crossing of the Saco River.

The existing 34.5 kV transmission line, Section 175, currently runs on single-pole structures approximately 35 feet in height with the conductors arranged horizontally. These structures will be removed and replaced with single-pole structures approximately 45 feet in height with the conductors arranged vertically.

Construction has been completed in Saco.

Permits & Approvals

MPUC Order Granting Ordinance Exemption


MPUC Order granting CMP exemption to the city zoning ordinance
Download PDF (57 KB)

PUC Examiner's Report


Report from PUC Examiner regarding CMP's request for ordinance exemption
Download PDF (54.5 KB)

Request for Ordinance Exemption


CMP's request for an exemption to the city ordinance requiring all high-voltage transmission lines be underground
Download PDF (75.5 KB)

Conditional Use Permit Application


Application submitted to city for MPRP
Download PDF (152.996 KB)

News & Events

New Milestone Reached on CMP's Maine Power Reliability Program

March 23, 2015

After Five Years of Construction, Last New Transmission Structure Set
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MPRP is nearly 95 percent complete

August 14, 2014

Crews set 5,000th structure in Bowdoinham
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Construction update for Saco and Biddeford

April 24, 2014

Construction and restoration activities have been completed
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Construction in Westbrook

April 4, 2014

Working outside of the Spring Street Substation
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Section 160 in South Portland

March 3, 2014

115-kV transmission line upgrade
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Major construction has been completed

February 24, 2014

Restoration efforts will commence and continue as needed
Read More

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

february 04, 2014

American Cultural Resources Association Industry Award – Private Sector
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Major Milestone Reached in Northern Loop

November 07, 2013

4,000th Structure Installed
Read More

Update on the new 345kV transmission line connecting Gorham to Kennebunk

September 04, 2013

Construction is active in Arundel and Kennebunk
Read More

Final wood pole delivery for Maine Power Reliability Program

July 10, 2013

Poles were received at Irby materials yard in Leeds, Maine
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1,500th structure has been set in the Central Loop

June 25, 2013

Structure is set off Bonin Road in Monmouth
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Southern Loop/Southern Connector achieves milestone

June 21, 2013

500th structure set in Saco
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Latest update on new 345kV from Gorham to Kennebunk

June 21, 2013

Construction moves into Biddeford and Arundel
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Seacost Media reports on Maguire Road Substation autotransformer delivery

May 23, 2013

Transformed By Jennifer Feals
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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
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MPRP sets 3,000th structure

May 13, 2013

Structure in Frankfort marks MPRP milestone
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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
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Transformer deliveries featured in Transmission & Distribution World

May 10, 2013

Two Large Autotransformers Due to Arrive in Maine
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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

Construction continues on new 345kV from Gorham to Kennebunk

April 25, 2013

Phases of construction range from matting to restoration activities
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L.E. Myers act of altruism

April 15, 2013

MPRP contractor donates poles to new Lineworker Facility at KVCC
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Attention to those considering using ATVs on the MPRP corridors

March 26, 2013

Maine officials warn 'mudders' to use caution
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Construction update on new 345kV from Gorham to Kennebunk

February 14, 2013

Crews continue to laydown mats and set poles
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Construction of the new 345kV line from Gorham to Kennebunk

February 05, 2013

Construction update for Gorham, Scarborough and Saco
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Milestone reached in Northern Loop

January 22, 2013

1,000 pole set in Winterport
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CMP powers up Larrabee Road Substation in Lewiston

December 20, 2012

Featured in Sun Journal
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Larrabee Road Substation is energized

December 20, 2012

WCSH 6 & WLBZ 2 News Center reports on this major milestone
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Preconstruction activities in Saco

December 14, 2012

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

December 12, 2012

Be Safe, Be Cautious, Be Aware…check for Trail Alerts
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Construction preparation in Saco

December 05, 2012

Matting and foundation work near Louden Substation
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Improving the reliability of CMP’s transmission system

October 23, 2012

Construction is now under way at the Livermore Falls Substation
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Supporting sportsmen

October 17, 2012

MPRP meets with SAM
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1000 pole set in the Central Loop

October 04, 2012

The pole was set in Lewiston by the new Larrabee Road Substation
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MPRP announces the mechanical completion of two new substations

October 02, 2012

Larrbee Road Substation in Lewiston and Raven Farm Substation in Cumberland
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MPRP is featured in the Journal Tribune

September 24, 2012

CMP begins work on Kennebunk substation
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Maguire Road Substation makes the Bangor Daily News

September 13, 2012

CMP breaks ground on $30M substation in Kennebunk
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CMP Transmission Line Construction Project Marks Milestone

August 29, 2012

Crews Set 2,000th Structure
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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
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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
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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

Portland Press Herald reports on MPRP Milestone!

May 16, 2012

The delivery of the Larrabee Road Substation Autotransformer
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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
Read More

Construction commences in Biddeford

January 10, 2012

Construction progresses from Saco into Biddeford
Read More

Construction activities in Saco

December 19, 2011

Construction activities are underway from Louden Road Substation to the Saco River
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Clearing operations in Saco

October 26, 2011

Clearing operations south of McKenney Road
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Clearing resumes in Saco

October 12, 2011

Crews will be matting and cutting near Loudon Substation
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

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
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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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Mowing in Saco

July 6, 2011

Clearing phase underway in the Section 220 corridor in Saco
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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
Read More

Clearing to begin in Saco

June 2011

Corridor clearing to begin in Saco
Read More

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