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Dam table [R]


Name of dam Prefecture Dam type Purpose Height FY Completed
Raizan Oh-tameike Fukuoka
E
A
25.0
1944
Rentaki Dam Iwate
G
F
37.7
1968
Rikimaru Dam Fukuoka
G
FWI
49.5
1965
Rogi Dam Kumamoto
G
FNW
53.0
2013
Rokkamura Dam Akita
E
A
17.6
1952
Rokujo Tameike Nagasaki
E
A
22.0
1916
Rokuronuma Dam Fukushima
E
A
15.0
1961
Rumoi Dam Hokkaido
R
FNW
41.2
2009
Ryorigawa Dam Iwate
G
FNW
43.0
2000
Ryugahana Dam Fukui
G
FNWP
79.5
1988
Ryuga-ike Yamanashi
E
A
17.0
1956
Ryui Dam Fukushima
G
FA
32.5
1961
Ryujin Dam Ibaraki
G
FNWI
45.0
1978
Ryumon Dam Saga
G
FNW
42.2
1975
Ryumon Dam Kumamoto
GF
FNAI
99.5
2001
Ryuoh-ike Kochi
E
A
17.5
1925
Ryusenji Dam Hiroshima
G
AW
35.0
1965
Ryutakuji-ike Ehime
E
A
27.3
1955

Notes:
1. Dam purposes are abbreviated as follows:
A: Agricultural irrigation   F: Flood control   I: Water supply for industry   N: Non-specified, river flow maintenance
P: Hydropower   R: Recreation   S: Snow melting &removing   W: Water supply

2. Dam types are abbreviated as follows:
A: Arch   B: Buttress   CSG: Trapezoidal CSG   E: Earthfill   FA: Asphalt face fill   FC: Asphalt core fill   G: Gravity
GF: Gravity concrete & fill dam (compound)   HG: Hollow gravity   MA: Multi-arch   R: Rockfill

3. The fiscal year (FY) in Japan is from April 1 to March 31 of the following year.

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