The Parkway continues east until a signalized intersection for access to the Tunney's Pasture campus of the federal government. An extra turning lane is provided to access the large parking lot of the campus. Further east, the Parkway passes over Parkdale Avenue, with on and off-ramps between Parkdale and the Parkway. A signalized intersection is provided to the east providing access to the Mechanicsville neighbourhood to the south, and Lemieux Island and its park and filtration station to the north, along an unnamed roadway. Access to and from the Parkway and this intersection is only allowed during off-peak hours.