 The highway was rebuilt with a seven-metre-wide (23 ft) pavement, with shoulders partially sealed to a width of one metre (3 ft 3 in). Work began in mid-1985 near Cocklebiddy, with a 58-kilometre-long (36 mi) section completed in 1986. Work undertaken from 1987 to 1988 reached out 110 kilometres (68 mi) east of Cocklebiddy, and 225 kilometres (140 mi) had been completed by June 1990. The upgrade from Cocklebiddy to the state border was completed in October 1994.
