Main Sabo Facilities

Kamiketto
Sabo Dam

This is the highest sabo dam in the area and is a unique arch dam as its spillway has dual cross-sections. It boasts the largest sand storage capacity in the area and is ranked 18th in Japan's water storage capacity table.

  • River: Nakatsu River (main channel)
  • Type: concrete arch dam
  • Height: 33 m
  • Crest Length: 101 m
  • Volume: 12,546 m3
  • Sand Storage Capacity: 1,500,000 m3
  • Construction Period: 1956 - 1961
Kamiketto Sabo Dam

Kuromatazawa
Sabo Dam

This is the highest gravity sabo dam in the area with the largest body volume.

  • River: Saguri River (a right bank tributary of Uono River)
  • Type: concrete gravity dam
  • Height: 25m
  • Crest Length: 125m
  • Volume: 28,367 m3
  • Sand Storage Capacity: 690,000 m3
  • Construction Period: 1972 - 1979
Kuromatazawa Sabo Dam

Daigenta
No. 1 Sabo Dam

This is the oldest arch sabo dam among similar dams directly controlled by the Ministry of Construction.

  • River : Daigenta River (a right bank tributary of Uono River)
  • Type: concrete arch dam
  • Height: 18 m
  • Crest Length: 33 m
  • Volume: 1,609 m3
  • Sand Storage Capacity: 550,000 m3
  • Construction Period: 1938 - 1937
Daigenta No. 1 Sabo Dam

Ketozawa
Downstream
Sabo Dam

This dam boasts the longest crest length, which is ranked 10th among sabo dams directly controlled by the Ministry of Construction.

  • River: Ketozawa River (a left bank tributary of Uono River)
  • Type: concrete gravity dam
  • Height: 7 m
  • Crest Length: 212 m
  • Volume: 6,145 m3
  • Sand Storage Capacity: 60,000 m3
  • Construction Period: 1958 - 1961
Ketozawa Downstream

Ikazawa
Sabo Dam

  • River: Saguri River (a left bank tributary of IkazawaRiver)
  • Type: gravity dam
  • Height: 14.0 m
  • Crest Length: 74.0m
  • Volume: 11,551 m3
  • Sand Storage Capacity: 450,000 m3
  • Construction Period: 1986 - 1988
Ikazawa Sabo Dam

Ookawa No.33
Channel Works

  • River: Kiyotsu River (a right bank tributary of Futai River)
  • Crest Length:37.1 m
  • Volume: 1,070 m3
  • Construction Period: 1999
Ookawa No.33 Channel Works

Nobori River
Channel Works

These large-scale channel works to prevent sediment disasters in a fan are famous throughout Japan.

  • River: Nobori River (a right bank tributary of Uono River)
  • Flow Rate: 600 m3/sec - 800 m3/sec
  • Design Width: 60 m - 70 m
  • Length: 5,850 m
  • Number of Groundsels: 44
  • Number of Riverbed Girdles: 16
  • Construction Period:1976-1998
Nobori River Channel Works

Mitsumata
Sabo Dam Group

A group of sabo dams has been constructed under the Safe Community Model Project. The first of its kind in the area of jurisdiction of the Hokuriku Regional Construction Bureau.

  • River: Hane River (a right bank tributary of Uono River)
  • Design Details: two sabo dams (Sekinosawa and Franzawa)
  • channel works: 389 m
  • Construction Period: 1990 - 1994
Mitsumata Sabo Dam Group

Nobori River Upstream
No.2 Sabo Dam

This dam was built using a construction method that utilizes sediment produced in the area, thereby reducing the amount of deposited earth.

  • River: Nobori River, right-hand tributary of Uono River
  • Structure: Steel cell (overflow section) and steel double wall (other sections)
  • Height: 14.5m
  • Length: 150m
  • Construction period: 2002-2004
Nobori River Upstream No.2 Sabo Dam

Fukuyama River
No. 3 Sabo Dam

This is the first sabo dam in Japan to have a gate.

  • River: Aburuma River (a right bank tributary of Uono River)
  • Type: concrete gravity dam (with a gate)
  • Height: 9.0 m
  • Crest Length: 32.65 m
  • Volume: 15.0 m3
  • Gate Section: 1.0 m 1.5 m 5.6tt
  • Construction Period: 1991 - 1996
Fukuyama River No. 3 Sabo Dam

Nanatsugama
Downstream
Sabo Dam

A sabo dam designed to harmonize with the surrounding natural environment by employing landscape preservation-type frame using mock rock panels, the first of its kind constructed in Japan.

  • River:Kama River (a left bank tributary of Kiyotsu River)
  • Type: concrete gravity dam
  • Height: 14.5 m
  • Crest Length: 31.8 m
  • Volume: 3,436 m3
  • Sand Storage Capacity: 28million m3
  • Construction Period: 1996 - 1997
Nanatsugama Downstream Sabo Dam

Koakazawa
No.22 Sabo Dam

A sabodam constructed by using thinned log, the first of its kind constructed within the jurisdiction.

  • River:Koakazawa River (a left bank tributary of Nakatsu River)
  • Type: concrete gravity dam
  • Height: 8.0m
  • Crest Length: 66m
  • Volume: 2,117m3
  • Sand Storage Capacity: 8,453million m3
  • Construction Period: 1998
Koakazawa No.22 Sabo Dam

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