September 22, 2026
Report
Wetlands Delineation Report: Big Eddy-Ostrander Transmission Line
Abstract
Pacific Northwest National Labs (PNNL) was contracted by BPA to prepare a Wetland Delineation Report to support project planning and compliance with state and federal wetland and waterway removal/fill regulations. This report documents the wetlands and waterways of the U.S./State located along the 66.5 miles of existing transmission line, the access road network, and in areas where hazard trees would be removed.Published: September 22, 2026