Loaʻa i ka hui ka mākaukau ʻenehana alakaʻi honua a me ka pae ʻenehana kiʻekiʻe ma ka wahi o ka mīkini ʻenekinia hydraulic. Eʻimi mālie a loaʻa iā ia ka mākeke mea hydraulic o kekahi pālākiō ma china, no laila e loaʻa ai ka lokomaikaʻi a me ke kākoʻo mai ka nui aʻe o nā mea kūʻai aku. 'enekinia kīwila, 'enekinia wehe 'ana, 'enekinia kūikawā (ka 'enekinia ma lalo o ka wai, ka tunneling). ʻOiai i loko o nā wahi maikaʻi ʻole, ua loaʻa i kāna hana hohonu a me ka ʻōnaehana lawelawe ʻenehana piha i ka loiloi kiʻekiʻe o nā ʻelele nui, nā mea hoʻohana a me nā ʻoihana hoʻohui huahana.