Drivers in certain parts of Kitchener will once again have to shift their typical routes, while motorists in Cambridge can expect to run into a weekend-long roadblock.

A month-long closure of the intersection of Ottawa Street and Courtland Avenue is scheduled to start Sunday.

Ottawa has been closed on either side of Courtland for several months as the Ion light rail transit system is built in the area.

Duke Street is also subject to two new Ion-related closures. On Thursday, it closed at Young Street – a closure expected to remain in effect until late November.

From Friday until Oct. 28, Duke will be closed at the rail tracks near Breithaupt Street.

Meanwhile, a busy section of Water Street in Cambridge is scheduled to be closed for construction over the weekend.

Drivers who would normally use the stretch of Water between Ainslie Street and Myers Road are being instead given the recommended detour of Myers, Franklin Boulevard, Dundas Street and Concession Street.

In most cases, pedestrian access is expected to be maintained during the closures. The only exception is on Duke at the rail tracks, where shuttle buses will be available for pedestrians.