Pownal, Maine

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The portion of the MPRP located in Pownal involves the construction of two new 345 kV transmission lines, the realignment and rebuild of portions of existing 345 kV and 115 kV transmission lines, and the expansion of the existing Surowiec Substation.

Surowiec Substation Expansion

The MPRP proposes to expand the 345 kV portion of the Surowiec Substation to accommodate two new 345 kV transmission lines. The proposed modifications to the substation include: (1) the rebuild of the existing 345 kV bus on the north side of the substation to accommodate the new 345 kV lines; and (2) the addition of one new 115 kV breaker to the existing 115 kV bus on the south side of the substation to improve system operation. Switches and other minor equipment will also be added to the substation.

New 345 kV Transmission Lines

CMP proposes to construct two new 345 kV transmission lines (Section 3020 and Section 3026) that will interconnect with the Surowiec Substation in Pownal. Section 3020 will extend south from the Surowiec Substation to North Yarmouth while Section 3026 will extend north from the substation to Durham.

The new Section 3020 transmission line will be constructed approximately 95 feet to the east of the existing 345 kV line. To accomplish this, the two existing 115 kV lines will be relocated farther to the east within the corridor. The new 345 kV line will be constructed on H-frame structures approximately 75 feet in height, while the two 115 kV lines will be rebuilt using single pole structures approximately 75 feet in height.

The new Section 3026 transmission line will be constructed in the space between the existing 115 kV transmission line and the gas pipeline on H-frame structures that have a typical height of approximately 75 feet.

Rebuild Existing 345 kV and 115 kV Transmission Lines

To accommodate the routing of the two new 345 kV transmission lines into the Surowiec Substation, a number of existing 345 kV and 115 kV transmission lines connecting at the substation must be realigned and rebuilt typically using H-frame structures approximately 45 feet in height or single-pole structures approximately 75 feet in height. Some lines may need to be temporarily rerouted until the substation expansion is completed, after which the temporary lines will be removed.

Permits & Approvals

Pownal Surowiec Substation Special Exception Approval

08/04/2010

Special Exception to residential noise ordinance for construction of Surowiec Substation
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Pownal Permit Approval

06/17/2010

Approval of permit by planning board and/or CEO
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Pownal Supplemental Info Request 4

06/03/2010

Supplemental information requested by Planning Board
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Pownal Supplemental Info Request 3

05/06/2010

Supplemental information requested by Planning Board
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Pownal Supplemental Info Request 2

04/21/2010

Supplemental information requested by Planning Board
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Pownal Surowiec Substation Special Exception Application

04/07/2010

Application for special request to noice ordinance for construction of Surowiec Substation
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Pownal Supplemental Info Request 1

02/17/2010

Supplemental information requested by Planning Board
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Pownal Permit Application

12/02/2009

Application submitted to town for necessary permits
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News & Events

Upgrades to Surowiec Substation in North Pownal

January 27, 2012

Expansion of Surowiec Substation requires a series of modifications
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Construction and Restoration work in Pownal

December 06, 2011

Construction rebuilds in Pownal nears competition as crews perform restoration work
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Clearing in Lewiston, Durham and Pownal

October 19, 2011

Clearing crews removing mats after completing clearing
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Transmission line construction in Pownal

October 19, 2011

Transmission line work is ongoing in Pownal between Fickett Road and the North Yarmouth Town Line
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Stringing wire in Pownal

October 19, 2011

Construction crews begin to string line on Allen Road
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Transmission line construction in Pownal

October 12, 2011

Transmission line construction is at various phases in Pownal
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Clearing beginning in Durham

September 29, 2011

Clearing crews move from Pownal to Durham and Auburn
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Clearing and Construction in Pownal

September 29, 2011

Clearing operations continue toward Durham and the transmission line rebuild is near complete to N. Yarmouth
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Transmission line construction in Pownal

September 15, 2011

Crews in Pownal continue installing a new transmission line
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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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Timber mat installation in Pownal

September, 14 2011

Construction crews prepare mat installation near Surowiec Substation
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Transmission line work in Pownal

September, 09 2011

Work is scheduled from Surowiec Substation south towards Sweetser Road and Elmwood Road
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Clearing operations continue in North Yarmouth and Pownal

August, 22 2011

Clearing operations in North Yarmouth continue south of Lufkin Road towards Gray Road
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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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Clearing & Mowing underway in North Yarmouth

August, 04 2011

Clearing & Mowing underway in North Yarmouth
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CMP Donates 4 AEDs to local Fire Departments

August 2, 2011

Local fire departments in Troy, Pownal, Canton and Somerville each received a new AED from the MPRP
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Pownal: clearing completed to N. Yarmouth, construction continues

July, 28 2011

Pownal: clearing completed to N. Yarmouth, construction continues
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Preparing for construction in Pownal

July 18, 2011

Prep for construction is underway in Pownal as clearing is nearing completion from Surowiec to North Yarmouth
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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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Clearing and Transmission Line Work in Pownal

July 11, 2011

Clearing operations south of Surowiec Substation wrapping up as Section 167 rebuild construction ramps up
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Clearing and construction preparation in Pownal

July 6, 2011

Crews preparing corridor for transmission line construction in the Section 166/167 corridor
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Clearing to begin in Pownal

June 13, 2011

North & South of Suroweic Substation to be cleared of capable vegetation in the near future.
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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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Clearing to Begin in Pownal

Mid June

corridor clearing to begin within the next few weeks
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Pownal - Surveying

3/31/2011

Crews are surveying north of Surwiec Substation for upcoming clearing activities.
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