The westbound lanes of Bismarck Expressway from Washington Street in Bismarck to the McKenzie Drive interchange in Mandan will be closed to traffic from 8:30 a.m. to 2 p.m. today.

The road will be closed so crews can hang an overhead sign just west of the Expressway Bridge. Travelers are advised to find alternate routes.

In addition to the road closure, the eastbound traffic on Bismarck Expressway will be reduced to one lane from the McKenzie Drive interchange in Mandan to the Expressway Bridge in Bismarck.