The hydraulic power stations, as going up the valleys in early 20th century, were confronted with a scenic problem and were obliged to be suitable to the scenary. Shiro SATO, an architect, was invited to design these buildings on Kiso River. The building of Momoyama power station (1923) was i built in Neo-Gothic style in reinforced concrete, but the outer surfaces of which were remained to be bare concrete as cast. This somewhat curious feature is supposed to have been an attempt by the architect, aiming to establish a style of modern architecture. It also seems to symbolize the situation of Japanese architecture in 1920s.
