The closure for spring maintenance of the Don Valley Parkway will see the usual Saturday-Sunday influx of traffic onto Bayview Ave. The entire Don Valley Parkway from Hwy. 401 to the Gardiner Expressway will be closed from 2 a.m. on Saturday to 5 a.m. on Monday for its annual maintenance. During the shutdown, crews will clean and repair catch basins, fill-in potholes, repaint signs and markings, and perform other essential roadway chores including the maintenance of 17 closed-circuit television traffic cameras.