ATC will be building the Badger-Coulee Power Line Project over the next few years. The line will run in to the North Madison Substation on Patton Road. A line will then run from that substation to Middleton. Here are a few documents relating to that project.
February 1, 2016 Construction Letter.
Construction Brochure-2015-Seg1
Badger Coulee town of Vienna maps
Here is a link to the entire project.