e hoʻokaʻawale a hoʻokaʻawale i nā huahana paʻa no ka loaʻa ʻana o ka hopena kūlohelohe. Hoʻohana pinepine ʻia nā mea hana no ka mālama kiʻekiʻe o ka pā maloʻo o ka pale peripheral o ka hoʻolālā ʻāina, a me ka hana ʻana o ka mālama wai, hydraulic a me nā huahana māla. ʻO nā poloka hiki ke hoʻokaʻawale ʻia e like me nā ʻano pā pōhaku paʻa, nā pavers, a me nā ʻano ʻano ʻāpana ʻokoʻa like ʻole i hoʻohana ʻia no nā paka, nā mokulele, nā uapo a me nā wahi ʻē aʻe e like me nā pōhaku hydraulic, nā pōhaku paʻa, nā ipu pua, nā pā pōhaku, etc.