Categorical Exclusion Determination
Office of NEPA Policy and Compliance
August 15, 2017
Estimated Read Time min
Bonneville Power Administration proposes to perform routine road maintenance along the access road for the Winthrop Tap to Twisp-Okanogan No. 1 Transmission Line, between structures 5/6 and 6/1 to maintain access to structures 5/7 and 5/8. Access road work would include: adding one ditch relief, one cross-drain culvert, 12 waterbars, and one landing; and performing minor blading, shaping, grading and adding rock (improvements) to approximately 5,100 feet of existing serviceable access and structure spur roads. General equipment used for this type of project includes graders, rollers, excavators, and dump trucks.