Ōigawa Railway Ōigawa Main Line Tags: Railway Line.The Ōigawa Main Line (大井川本線 Ōigawa honsen) is a Japanese railway line which connects Kanaya Station in Shimada Shizuoka Prefecture with Senzu Station in Kawanehon Haibara District Shizuoka Prefecture. It is owned and operated by the Ōigawa Railway. thumbnail line length (μ) 39500.0 location Shizuoka Prefecture number of stations 19 opening year 1927-01-01T00:00:00+02:00 operated by Ōigawa Railway type Passenger rail terminology voltage of electrification (V) 1500.0 Learn more... Loading...