Keywords: TanabeTunnelFig010.jpg Section of Lake Biwa Canal completed in 1890 Tunnels of the branch line 琵琶湖疏水分線トンネル断 cite book 田邉 郎 Sakur TANABE 1922 p 9 Figure 10 とんねる Tunnel Japanese 丸善 Maruzen 京 Tokyo 2008July18 Maxima m PD-Japan Biwako Canal Lake Biwa Cross sections of tunnels Tunnels in Japan Canal tunnels Aqueducts in Japan 19th-century technical drawings |