. ▁The ▁section ▁from ▁N ors eman ▁to ▁the ▁state ▁border ▁was ▁completed ▁in ▁ 1 9 6 9 . ▁ ▁N ors eman ▁to ▁Es per ance ▁ ▁C ool g ard ie – Es per ance ▁Highway ▁was ▁an ▁un se aled ▁road ▁until ▁ 1 9 6 0 , ▁when ▁a ▁ 3 . 7 ▁met re ▁wide ▁( single - lane ) ▁se al ▁was ▁completed ▁between ▁C ool g ard ie ▁and ▁Es per ance . ▁In ▁ 1 9 7 4 ▁the ▁road ▁was ▁upgrad ed ▁further ▁and ▁a ▁two ▁l ane ▁se al ▁completed ▁was ▁between ▁C ool g ard ie ▁and ▁N ors eman . ▁In ▁ 1 9 8 0 ▁a ▁two ▁l ane ▁se al ▁was ▁completed ▁south ▁of ▁N ors eman , ▁which ▁also ▁completed ▁the ▁two ▁l ane ▁se al ▁from ▁C ool g ard ie ▁to ▁Es per ance . ▁ ▁Es per ance ▁to ▁Alb any ▁ ▁Alb any ▁to ▁Bun bury ▁ ▁A ▁road ▁from ▁Bun bury ▁to ▁Bo yan up , ▁called ▁the ▁Black wood ▁Road , ▁existed ▁as ▁early ▁as ▁ 1 8 6 4 . ▁A ▁bi - week ly ▁mail ▁route ▁from ▁Bo yan up ▁to ▁Br idget own ▁via ▁Pr eston , ▁Bal ing up , ▁and ▁Green b ush es ▁was ▁established ▁by ▁ 1 8 9 1 ; ▁it ▁also ▁extended ▁further ▁south ▁to ▁Bal bar rup ▁on ▁a ▁week ly ▁basis . ▁Sur ve ying ▁of ▁a ▁direct ▁Br idget