Access Road Improvement Project for Structure 12/1 of the Snoking Tap to Echo Lake-Monroe Number 1 Transmission LineCX(s) Applied: B1.13Date: 03/12/2010Location(s): Snohomish, WashingtonOffice(s): Bonneville Power Administration
Office of NEPA Policy and Compliance
March 12, 2010
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CX(s) Applied: B1.13
Date: 03/12/2010
Location(s): Snohomish, Washington
Office(s): Bonneville Power Administration
Bonneville Power Administration (BPA) proposes to construct a permanent access road to improve vehicle access to the 115 kilovolt Snoking Tap to Echo Lake-Monroe Number 1 Transmission Line. The project would involve constructing an approximately 760-foot long by 14-foot wide access road to structure 12/1. The project would also involve the installation of three culverts to help preserve the site's existing hydrology and increase the longevity of the proposed access road. Project activities would occur in wetland areas, so the road has been designed to minimize any impacts to the wetlands. The road would be built on a layer of geotextile fabric followed by a 12-inch layer of six-inch minus quarry spalls, followed by another layer of geotextile fabric, and finally a four-inch layer of 1 and a half inch minus crushed rock for the travel surface. Best Management Practices (BMPs), including: working in the dry season, installing sediment catch basins, and others where appropriate would be implemented to further minimize any impact form the road construction.