SPECIFIC WORK DETAILS
Section 256 Underground 115kV Transmission Line:
Section 256, will be built in a new underground duct bank between the new Middle Street Substation and the Lewiston Lower Substation. The line will follow Main Street, Canal Street, and Lisbon Street before entering the Lewiston Lower Substation near Strawberry Patch Lane.
Middle Street Substation: Site Preparation and Construction 2016-2017
The new Middle Street Substation will be constructed between the Pan-Am Railroad and the LL Bean Parking Garage. The substation will include 115kV transformers, breakers, switchgear, and control house.
Overhead Transmission Line Tie-Ins: 2016
Two existing overhead 34.5kV transmission lines that currently go into the Lewiston Substation (Lewiston Steam Plant in the Pedro’s parking lot) in the vicinity of the Great Falls Dam will be rerouted into the new Middle Street Substation.
Lewiston Lower Substation Modifications: 2016-2017
Upgrades of the Lewiston Lower Substation (in back of Grimmel's Gas Station) will occur including the installation of 115kV transformers and associated breakers and switches.
Lewiston Substation (Lewiston Steam) Decommissioning: 2016-2017
Removal of substation equipment and associated transmission and distribution lines from the Lewiston Substation on Main Street.