. . "National Route 1" . . "(Kwinana Freeway \u2013 Stock Road)" . . "Leach Highway"@en . . . . . "Leach Highway is a 23-kilometre (14 mi) east-west arterial highway in the southern suburbs of Perth, Western Australia, primarily linking Kewdale and Perth Airport with the city of Fremantle.It is allocated State Route 7 and is a dual carriageway for its entire length. Leach Highway varies in width between 4 and 6 lanes, and in speed limit between 70 km/h (43 mph) and 80 km/h (50 mph)."@en . . "(all sections)" . "23000.0"^^ . . "State Route 7" . "*" . .