Abstract
In Suruga Bay, there exists deep sea water more than a depth of 2, 500 m, and a water mass having different multi-1ayer intake water (five levels of 4 types) is observed. The total design of the deep seawater intake pipe and its laying procedure are described. There are two intake pipes; one for the Kuroshio origin deep seawater from a depth of 380 m, and the other for the subarctic origin from 680 m. The depth of 687 m and the extension length of 7, 273 m for the subarctic origin water, are the deepest and the longest records in our country.