2026 marks 100 years of Route 66, and the Illinois State Police Heritage Foundation is commemorating the milestone with a new limited-edition T-shirt celebrating a century of patrolling the Mother Road. Featuring the theme “Patrolling Route 66: 100 Years,” the new design brings together two important pieces of Illinois history: the iconic highway and the generations of Illinois State Police personnel who have served along it. About the Apparel This year’s Route 66 Centennial