Two corridor alternatives (view pdf map) appear to be the most likely among those being studied. The final decision will include the alternatives that will serve the region most effectively. Upgrades could be a combination of improvements within each of these corridors.
When the studies have determined the preferred route and upgrades, a formal notification process will begin.
Alternative 1 - A new line from Big Stone, SD, to Ortonville, MN, with an upgrade of the line from Ortonville to Johnson Junction to Morris, MN. This alternative also would require a new line from Big Stone, SD, to Canby, MN, and an upgrade of the line from Canby to Granite Falls, MN. Voltage on these lines most likely would be 230 kV, with the Big Stone to Canby portion of the line at 345 kV.
Alternative 2 - A new line from Big Stone, SD, to Willmar, MN, and a new line from Big Stone, SD, to Canby, MN. The line from Canby to Granite Falls, MN, also would be upgraded. Voltage on these lines most likely would be 230 kV, with the Big Stone to Canby portion of the line at 345 kV.
