Oyaguchi Watersupply Tower, which was established by Aratama Municipal Union for Watersupply, has been known as one of the unique landmarks in the northwest area in Tokyo, but the Watersupply Bureau of Tokyo Metrpolitan Government decided to renew the structure according to their new plan for watersupply in case of emergency. This tower was planned by Eiji Nakajima, Dr.Eng., and designed by his successors after changes in two times. Its design consists of unified body of water tank and tower, and it was constructed by applying quasi-arc welding method, which was cutting-edge technology at that time. It was proved also that its form and details have an architectural style called Romanesque to make itself look.unique.
