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Dam table [N]


Name of dam Prefecture Dam type Purpose Height FY Completed
Nabara Dam Hiroshima
R
P
85.5
1976
Nabekawa Dam Okinawa
R
A
29.0
1989
Nabekura Dam Oita
R
A
43.5
1995
Nagahama Dam Okinawa
R
A
48.3
1998
Nagahara Dam Okayama
R
A
27.0
1981
Nagai Dam Yamagata
G
FNAWP
125.5
2010
Nagaidani Dam Hyogo
E
FA
25.3
1983
Naga-ike Okayama
E
A
15.5
1931
Nagaike Dam (Re) Saga
E
FA
34.8
1996
Nagami Dam Shimane
G
P
20.2
1961
Naganuma Dam Akita
E
A
16.5
1954
Naganuma Dam Miyagi
E
FNR
15.3
2013
Nagara Dam Chiba
E
W
52.0
1993
Nagara Dam (Pre) Kagawa
G
FN
30.0
1952
Nagara Dam (Re) Kagawa
G
FN
42.6

Nagasawa Dam Kochi
G
P
71.5
1949
Nagase Dam Kochi
G
FNP
87.0
1956
Nagase Dam Shizuoka
E
A
16.2
1950
Nagashima Dam Shizuoka
G
FNAWI
109.0
2001
Nagata Dam Nagasaki
G
FN
24.0
1984
Nagatani Dam Fukuoka
G
W
53.8
1993
Nagatani Dam Hyogo
G
FN
30.3
1991
Nagatani-ohike Hiroshima
E
A
20.0
1949
Nagatani-oike Hyogo
E
A
22.1
1957
Nagatomi-ike Kagawa
E
A
23.2
1972
Nagawado Dam Nagano
A
P
155.0
1969
Nagayachi No.2 Dam Yamagata
E
A
15.6
1950
Nagayasuguchi Dam (Pre) Tokushima
G
FNP
85.5
1955
Nagayasuguchi Dam (Re) Tokushima
G
FNP
85.5
2019
Nagayo Dam Nagasaki
G
FNW
36.0
1985
Nagayoshi Dam Kagoshima
R
FA
37.0
1979
Nagayu Dam Oita
E
A
15.0
1953
Nagi-ike Okayama
E
A
29.0
1942
Nagoro Dam Tokushima
G
P
37.0
1961
Naguma Dam Chiba
E
A
18.5
1979
Nagura Dam Okinawa
R
A
38.7
1998
Naiba-Dam Kagawa
G
FNW
50.0
1952
Nakadake Dam Kagoshima
R
A
69.9
2007
Nakagi Dam Gunma
G
W
41.0
1959
Nakagusuku Dam Okinawa
E
A
19.7
1954
Nakahoro Dam Hokkaido
E
F
25.8
1990
Nakaiwa Dam Tochigi
G
P
26.3
1924
Nakajima Dam Shizuoka
E
A
17.4
1918
Nakakoba Dam Saga
G
FNW
69.5
2007
Nakakoba Tameike Saga
E
A
15.0
1926
Nakano Dam Hiroshima
R
A
44.0
1975
Nakano Dam (Pre) Hokkaido
G
W
53.0
1960
Nakanoho Dam Gifu
G
FNW
41.7
2005
Nakanojo Dam Gunma
A
AP
42.0
1960
Nakanokawa Dam Oita
R
FA
37.3
1987
Nakanosawa Dam Hokkaido
E
A
15.2
1937
Nakao Dam Nagasaki
G
FNW
40.0
2000
Nakaojiri Tameike Tottori
E
A
15.2
1923
Nakaoki-ike Mie
E
A
17.0
1990
Nakaozawa-zeki Chiba
E
A
15.3
1938
Nakasujigawa Dam Kochi
G
FNAWI
73.1
1998
Nakatsu Dam Tottori
G
P
35.0
1957
Nakayama Dam Toyama
G
P
24.0
1961
Nakayama Dam Nagasaki
G
FNW
24.5
1984
Nakayamagawa Dam Yamaguchi
G
FNW
37.0
1995
Nakayamagawa Gyaku Tyouseiti Ehime
G
P
20.8
1963
Nakayama-ike Kagawa
E
A
17.0
1979
Nakazato Dam Mie
E
AWI
46.0
1976
Nakazone No.2 Dam Nagasaki
G
W
25.7
1969
Namaigawa Dam Yamagata
R
A
47.8
1992
Nameri-ko Mie
E
A
28.4
1973
Nameshi Dam Oita
R
A
38.5
1985
Namioka Dam Aomori
R
A
52.4
1982
Nanairo Dam Mie
GA
P
61.0
1965
Nanakita Dam Miyagi
R
FNW
74.0
1984
Nanakura Dam Nagano
R
P
125.0
1979
Nanamagari Tameike Saga
E
A
15.3
1973
Nanbu Dam Kagoshima
E
AW
25.2
1969
Nanbuzaka Dam Hokkaido
R
F
26.1
2009
Nangai Dam Akita
E
FA
21.4
1978
NanmaDam Tochigi
R
FNW
86.5
2015
Naokawa Dam Oita
G
F
24.9
1970
Naosuke Tameike Hiroshima
E
A
16.0
1956
Narai Dam Nagano
R
FNW
60.0
1982
Narai Dam Okayama
G
FNWI
38.2
1996
Naramata Dam Gunma
R
FNAWIP
158.0
1990
Nariai Dam Hyogo
G
FNW
61.0
1999
Narude Dam Gifu
G
P
53.2
1951
Narufuchi Dam Fukuoka
G
FNW
67.4
2001
Naruko Dam Miyagi
A
FAP
94.5
1958
Narumi Dam Nagasaki
G
FW
53.5
1991
Narusawa Dam Gunma
E
A
21.0
1949
Naruse Dam Akita
R
FNAWP
113.5

Naruta-ike Okayama
E
A
16.0
明治
Narutaki Dam Okayama
G
FNW
34.0
1981
Nashinari-ike Hiroshima
E
A
15.0
1997
Natsuko Dam Tokushima
G
A
43.8
1994
Natsumina Tameike Nagasaki
E
A
15.0
1934
Natsusaka Dam Aomori
G
F
27.5
1966
Natsuse Dam Akita
G
P
40.0
1940
Neishi Dam Iwate
R
F
41.0
2000
Nekoyama Dam Nagasaki
G
FN
32.0
1973
Nenoue-ko Gifu
E
A
15.0
1964
Nibudani Dam Hokkaido
G
FNAWIP
32.0
1997
Nicchu Dam Fukushima
R
FAWP
101.0
1991
Nichinan Dam Miyazaki
G
FN
47.0
1984
Nigorigawa Dam Hokkaido
R
F
42.0
2005
Niibo Dam Niigata
E
A
33.2
1958
Niibo No.2 Dam Niigata
G
A
61.4
1991
Niikappu Dam Hokkaido
R
P
102.8
1974
Ni-ike Kagawa
E
A
16.0
1967
Nika Dam Hiroshima
G
FN
47.0
2011
Nikkei Tameike Shiga
E
A
21.0
1944
Nikyu Dam Hiroshima
G
WIP
32.0
1942
Ninbusuiso Dam Toyama
G
P
19.9
1961
Ninokura Dam Aomori
FA
F
37.0
1970
Ninosawa Dam Hokkaido
E
A
18.4
1925
Nishiake-Ike Hiroshima
E
A
15.0
1975
Nishiarakawa Dam Tochigi
G
FN
43.5
1968
Nishidaira Dam Gifu
G
P
31.5
1939
Nishigatani Dam (Re) Kyoto
E
A
24.8
1996
Nishigaya-ike (Pre) Kyoto
E
A
25.0
1869
Nishigo Dam Fukushima
E
A
32.5
1955
Nishigochi Dam Kumamoto
G
A
17.5
1970
Nishigoya Dam Tochigi
G
P
21.5
1963
Nishihara Dam Okayama
R
AWI
46.1
1976
Nishihata Dam (Pre) Miyazaki
G
P
17.8
1958
Nishihisayama-ike Kochi
E
A
15.0
1923
Nishiki Dam Hyogo
G
FNW
26.7
2013
Nishikomenogawa Dam Mie
G
W
18.5
1982
Nishimura Dam Gifu
G
P
19.5
1938
Nishinotani Dam Kagoshima
G
F
21.5
2012
Nishinotani-ike Ehime
E
A
15.5
1910
Nishiohya Dam Shizuoka
E
FA
15.1
1958
Nishioka Dam Hokkaido
R
FNW
31.0
2009
Nishisatsunai Dam Hokkaido
G
F
21.0
1994
Nishitakao Dam Tottori
R
A
46.2
1992
Nishitani-ike Okayama
E
A
16.8
192X
Nishiyama Dam Yamanashi
G
P
40.6
1957
Nishiyama Dam Kochi
E
A
27.2
1997
Nishiyama Dam (Pre) Nagasaki
G
W
31.8
1903
Nishiyama Dam (Re) Nagasaki
G
FNW
40.0
1999
Nishiyama-ike Ehime
E
A
24.2
1955
Nishonai Dam Aomori
R
A
86.0
1995
Nisihata Dam (Re) Miyazaki
G
P
23.7
2015
Nisshin Dam Hokkaido
R
A
29.5
1973
Nisshin-Ko Dam Hokkaido
E
A
26.5
1924
Nita Dam Nagasaki
G
FN
33.4
1978
Niu Dam Shiga
R
FNW
145.0

Niwaki Dam Saga
G
A
26.2
1994
No.1 Fukurogura Dam Chiba
E
AW
22.0
1923
No.1 Yairagi Dam Kumamoto
G
W
19.5
1965
No.2 Fukurogura Dam Chiba
G
W
24.3
1971
No.2 Hamada Dam Shimane
G
FN
97.8

No.2 Hamada Saddle Dam Shimane
G
FN
27.8

No.2 Hoshida Dam Okayama
G
A
42.6
1983
No.2 Okuyatsu Dam Chiba
G
W
22.7
1989
No.2 Senzoku-ike Hiroshima
E
A
18.2
1965
No.2 Yairagi Dam Kumamoto
G
W
36.1
1984
Noda Dam Oita
G
FA
38.7
1991
Nodo Tameike Yamaguchi
E
A
22.3
1957
Noguchi Dam Kagawa
G
FA
35.0
1966
Noji Tameike Toyama
E
A
17.0
1921
Nokanan Dam Hokkaido
G
P
30.0
1971
Nokanan Dam Hokkaido
E
A
41.5
1978
Nokogiriyama Dam Chiba
G
W
19.1
1962
Nomagawa Dam Hiroshima
G
FNW
31.5
2012
Nomura Dam Ehime
G
FAW
60.0
1981
Nonokawa Dam Nagasaki
G
FN
24.0
1972
Norokawa Dam Hiroshima
G
FN
44.8
1975
Notsu Dam Oita
G
FNW
34.9
2001
Nozaki Dam Nagasaki
E
A
29.8
2001
Nozori Dam Gunma
R
P
44.0
1956
Nukabira Dam Hokkaido
G
P
76.0
1956
Nukanan Dam Hokkaido
GF
P
18.6
1960
Nukui Dam Hiroshima
A
FNWP
156.0
2001
Nukumi Dam Yamaguchi
G
AWI
36.0
1960
Numamoto Dam Kanagawa
G
WIP
34.5
1943
Numappara Dam Tochigi
FA
P
38.0
1973
Numata Dam Hokkaido
R
AW
44.9
1991
Nunobiki Gohonmatsu Dam (Pre) Hyogo
G
W
33.3
1900
Nunobikigohonmatsu Dam (Re) Hyogo
G
W
33.3
2004
Nunome Dam Nara
G
FNW
72.0
1991
Nuppanosawa Dam Hokkaido
E
A
22.7
1933
Nyu Dam Gunma
E
A
17.3
1952
Nyudo-ike Okayama
E
A
16.3
1941
Nyukawa Dam Gifu
G
FNWP
69.5
2012
Nyu-zeki Chiba
E
A
16.4
1940

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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