▁car ries ▁the ▁National ▁Highway ▁shield ▁A 4 1 ▁between ▁Bath urst ▁and ▁ ▁and ▁the ▁State ▁Route ▁B 6 4 ▁shield ▁between ▁Cow ra ▁and ▁Hay . ▁The ▁highway ▁shares ▁a ▁conc urrency ▁with ▁the ▁New ell ▁Highway ▁between ▁M ards den ▁and ▁. ▁The ▁highway ▁is ▁a ▁single ▁carriage way ▁along ▁its ▁entire ▁length . ▁ ▁During ▁ 2 0 1 4 ▁the ▁Ro ads ▁& ▁Mar itime ▁Services ▁in ▁conj unction ▁with ▁the ▁NS W ▁Ge ographical ▁Names ▁Board ▁comm enced ▁a ▁consult ation ▁process ▁to ▁change ▁the ▁name ▁of ▁the ▁highway ▁to ▁the ▁Wir adj uri ▁Highway , ▁as ▁the ▁only ▁state ▁highway ▁to ▁lie ▁fully ▁within ▁the ▁Wir adj uri ▁cultural ▁area . ▁ ▁Route ▁The ▁highway ▁runs ▁generally ▁n ortheast - s outh west , ▁roughly ▁aligned ▁to ▁the ▁L ach lan ▁River ▁in ▁New ▁South ▁Wales , ▁then ▁stretch ing ▁across ▁the ▁Hay ▁P lain , ▁generally ▁towards ▁the ▁south - western ▁corner ▁of ▁New ▁South ▁Wales . ▁ ▁The ▁eastern ▁termin us ▁of ▁the ▁Mid - West ern ▁Highway ▁is ▁at ▁a ▁j unction ▁with ▁the ▁Great ▁Western ▁Highway ▁and ▁Mitchell ▁Highway ▁in ▁the ▁city ▁of ▁Bath urst . ▁He ading ▁west ▁by ▁south west , ▁the ▁highway ▁car ries ▁the ▁A 4 1 ▁shield ▁and ▁passes ▁through ▁, ▁ ▁where ▁the ▁village ▁is ▁by pass ed ▁in ▁ 1 9 7 5 , ▁and ▁to ▁Cow ra ▁where ▁the ▁highway ▁cross es ▁the ▁L ach lan ▁River ▁and ▁forms ▁the ▁northern ▁termin us ▁of