KDOT to begin bridge replacement project on Hwy 24 east of Blackjack Road next week The bridge over Hwy 24, just east of Blackjack Road is on KDOT’s radar for replacement, beginning March 16. (Brandon Peoples/KMAN) Some residents in the St. George area will have to find new access points to Hwy 24 as a bridge replacement project begins next week near the intersection of Blackjack Road.. The Kansas Department of Transportation plans to start the replacement project March 16. Traffic south of the highway along Blackjack will not be able to access the highway. Traffic along the highway also won’t have access to Blackjack Road. Pottawatomie County Commissioner Dee McKee says the project is going to cause significant traffic headaches.