Abstract: A submersible offshore jacket assembly is provided having a plurality of elongated pilings with a first diameter. A plurality of spaced, longitudinally aligned sleeves of a diameter greater than the first diameter of the piling are interconnected by suitable bracing and receive a piling therethrough, so that the sleeves surround the piling and are spaced therealong separately one from the other. A plurality of braces are connected to one another and each of said sleeves in an arrangement whereby said sleeves with the pilings function as the legs of the assembly. Each of said pilings has an exterior surface area otherwise completely exposed to the environmental forces of tides, wind, waves and current, along substantially the entire length of each piling between the spaced sleeves.