News from Kenosha County, Wisconsin. My mom reported that the trail following the old North Shore Railroad has been paved! The trail is just behind my mom's apartment.
I have ridden the trail a couple times. The South end is at 35th St (between 22nd Ave and 30th Ave. From there you can ride into Racine.
The Racine County section of the trail had been paved some time ago.
Weather permitting, I will ride the new paved trail over Thanksgiving.