ʻO 290 ka nui o ka moʻo KG× 190×ʻO ka pahu hui wai 140 he mea hoʻohui i hoʻolālā ʻia no nā mea uila. ʻO kēia pahu junction he hana wai ʻole, hiki ke pale pono i nā kaapuni o loko mai nā kaiapuni waho e like me ka wai a me ka wai.
He kūpono kēia pahu hui no ka uwea ʻana a me ka hoʻohui ʻana i nā mea uila like ʻole. Hiki iā ia ke hoʻohui i nā kaula, nā uea, a me nā pilina ma waena o nā mea hana, e hōʻoia ana i ka hilinaʻi a me ka paʻa o nā pili kaapuni. I ka manawa like, loaʻa iā ia ka hana o ka pale ʻana i ke kaapuni mai nā mea o waho a me ka komo ʻana o ka lepo, hoʻomaikaʻi i ka palekana a me ka hilinaʻi o nā mea hana.