CX-011183: Categorical Exclusion Determination

Line Upgrade on Bonneville Power Administration’s Walla Walla-Pendleton Number 1 Transmission Line CX(s) Applied: B1.3 Date: 08/30/2013 Location(s): Washington, Oregon Offices(s): Bonneville Power Administration

Office of NEPA Policy and Compliance

August 30, 2013
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Line Upgrade on Bonneville Power Administration’s Walla Walla-Pendleton Number 1 Transmission Line
CX(s) Applied: B1.3
Date: 08/30/2013
Location(s): Washington, Oregon
Offices(s): Bonneville Power Administration

The proposed line upgrade will involve the installation of shunts on conductor splices and dead-end fittings. Two structures will be raised to mitigate impairments. Bonneveille Power Administration proposes to replace wood poles and associated structural/electrical components (e.g. cross arms, insulators, guy anchors, etc.) at two locations, 24/5 and 30/6, on the transmission line. Replacement will be with taller poles and will utilize the existing holes to minimize ground disturbance.