CX-019931: Warren Substation PCA Project

The Bonneville Power Administration (BPA) proposes to install a new Power Control Assembly (PCA) building and to remove the existing control house building at BPA’s Warren Substation, located in Columbia County, OR. The existing control house is in poor condition and is no longer structurally sound. The new PCA building
would be approximately 30’ long, 16’ wide, and 10’ in height and the building foundation would require excavation depths of approximately 3’. Electrical and communication equipment would be installed within the new PCA. A new station service power transformer, 115-kV surge arresters, and the associated structures would also be required to connect the new PCA to the existing facility. The new structures would be steel lattice and less than 10’ in height.