 MINOLTA α-507si, AF 28-105mm F3.5-4.5, Fuji RHPIII |
 May 19, 2002川の勾配は急で，連続的に小堰堤が設けられている。 Sumiyoshi River is very steep, so many small sabo dams are constructed for a short space. |
住吉川の治水
Flood Control of Sumiyoshi River
MINOLTA α-507si, AF 28-105mm F3.5-4.5, Fuji RHPIII |
| May 19, 2002 川の勾配は急で，連続的に小堰堤が設けられている。 Sumiyoshi River is very steep, so many small sabo dams are constructed for a short space. |