agricultural irrigation
april
attractions
bridge
chikuma river
city water
civil engineering
control
cross
dam
dykes
echigo
echigonagaoka
facilities
fish ladder
flood control
headworks
infrastructure
infrastructure and transport
irrigation
japan
koshi bridge
ministry of land
movable weirs
mymi
mymi bansho ruins
mymi weir
mymi weir square
nagaoka
nagaoka city
national route no 17
niigata
niigata prefecture
power generation
reverse adjustment
ri
river
scenery
seawall
shinano river
shinanogawa mymi memorial museum
spring
sunny
tap water
volume adjustment
water for industrial use
water intake
water intake dam
water level
water supply
weir