Ongoing work on the Union Pacific Railroad will halt traffic beginning this weekend along Leavenworth County Road 1, about a mile north of the Kansas River.

The railroad is upgrading its crossing on County Road 1, part of an ongoing maintenance project that started in Topeka and is working its way east. Crossings in North Lawrence already have been getting upgraded.

Closure of the crossing will mean traffic heading to Eudora from the north will have to find another route.

The upcoming closure is expected to start Saturday and last into Tuesday, said Michael Kelly, Douglas County surveyor.

The road turns into Douglas County Road 1061 once it hits the Kansas River bridge and heads into Eudora.

County Road 1 continues to be closed even farther to the north, as crews rebuild the road between Kansas Highway 32 and U.S. Highways 24-40. That’s in conjunction with construction of a new interchange on the Kansas Turnpike.

The interchange and road reconstruction project are on track to be finished in November, said Rex Fleming, the turnpike’s project engineer.

“We’re on schedule to get done on time,” Fleming said.