Expected to begin on Thursday, February 27, and last into the fall, the northernmost lane on Catherine Street between Zina Pitcher Place and Glen Avenue will be closed for Catherine Street tunnel utility and maintenance upgrades. Two lanes of westbound traffic will be maintained. Pedestrian traffic will be maintained on the south side of Catherine Street and the crosswalk on Catherine Street at Zina Pitcher Place will remain open for access to the Buhl Research Center and the Taubman Health Sciences Library.