Since the late 1990s, the Conestoga has undergone extensive reconstruction between Courtland Avenue and Lancaster Street, with the addition of an Ontario "tall-wall" concrete median barrier and high-mast lighting mounting high-pressure sodium lamps, replacing the conventional truss light poles mounting mercury lamps. The widening project resulted that stretch of the Parkway being expanded to at least six lanes by using the grass median, and eight lanes between Highway 8 and a location midway between Ottawa and Frederick Streets (north of that location was already eight lanes) by using the right-of-way afforded by the shoulders. In 2004, extensive improvements were completed around the former obsolete and bottlenecked "half-cloverleaf" junction with the freeway section of Highway 8, that links it to Highway 401. This included a new flyover semi-directional ramp from Conestoga westbound to Highway 8 eastbound, while the ramp in the opposite direction was realigned to allow it to carry two lanes of traffic at a higher speed.