Big Stone South-Brookings County 345 kV transmission line project route options

The Big Stone South-Brookings County project is a 345 kV transmission line proposed between a new Big Stone South Substation near Big Stone City, S.D. and the Brookings County Substation near Brookings, S.D.

A Facility Permit was granted by the South Dakota Public Utilities Commission (SD PUC) to Otter Tail Power Company in January 2007 for approximately 35 miles from just west of Big Stone City to just north of Gary, S.D. CapX2020 filed a Facility Permit with the SD PUC in June 2013 for the remaining 42 miles from just north of Gary to the existing Brookings County Substation.

Detailed aerial photo route maps: Click within a tile below to download a detailed tile map as a PDF.
maps updated 7/26/2015