 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 . 
