Date: September 25, 2022
Route: I-80 west, I-57 south, I-24 east, IL 146 east, IL 147 east, IL 145 north, IL 34 south, IL 34 north, IL 146 east, IL 1 south, IL 1 north, US 45 south, IL 141 east, county roads, IL 1 north, I-64 east
New counties visited (all in Illinois): Williamson, Johnson, Pope, Saline, Hardin
Routes clinched: IL 147, IL 1, IL 141
Other new route segments traveled: I-57 between I-24 and IL 14, I-24 between IL 146 and I-57, IL 146 between I-57 and IL 147, IL 145 from IL 147 to IL 34, IL 34 from southern end to IL 145, IL 146 from IL 34 to IL 1, US 45 from IL 141 to IL 1
Summary: Ever since I moved to Northwest Indiana 5 years ago, I've had a bit of fascination with IL 1. It's the second closest Illinois state route from where I live (IL 83 is closer), it's the longest Illinois state route (exluding the entirely multiplexed IL 110), and it's (obviously) the lowest-numbered. Over various trips I'd extended my clinch as far south as US 45 at Norris City, and it was time to finish the job. On the way I picked up five new counties, a few more miles of I-57, my first mileage on I-24 in Illinois, and my lowest-numbered untraveled route in 147.