Replace Rock Creek-John Day Number 1 SpacersCX(s) Applied: B1.3Date: 03/09/2010Location(s): Klickitat County, WashingtonOffice(s): Bonneville Power Administration
Office of NEPA Policy and Compliance
March 9, 2010
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CX(s) Applied: B1.3
Date: 03/09/2010
Location(s): Klickitat County, Washington
Office(s): Bonneville Power Administration
In order to provide continued system reliability, Bonneville Power Administration (BPA) proposes to replace old and worn spacers along approximately 8.7 miles of the Rock Creek-John Day Number 1 500 kilovolt transmission line; structures III to 4/2 and 6/4 to 11/2. Manned aerial carts that ride on the transmission line conductor would be used to change out the spacers. The carts would be placed on the transmission line by helicopter prior to line crews accessing the carts. New spacers would be flown to the carts and delivered by helicopter. Once the old spacers arc changed, they would be transported to a pickup area before being sent to a recycling center. The majority of the work would be above ground with minimal support from vehicles and crews on the ground. All vehicles would remain on existing access roads. All work would be in accordance with the National Electrical Safety Code and BPA standards.