Agano River System

Niigata Prefecture Dam

0751-Agegawa Dam

Date of visit: 05/25/2013 (Sat.) After the Shimojogawa Dam and Hayadegawa Dam, we visited the Agegawa Dam. It is located in the Agano River (called the Aga River in Fukushima Prefecture), which has its headwaters in the Arakai Mountains on the border between Tochigi and Fukushima Prefectures, and is the downstream-most dam owned by Tohoku Electric Power Co. In the name of...
Niigata Prefecture Dam

0776-Hayadegawa Dam

Date of visit:2013/05/25 (Sat) After the Shimojogawa Dam, we next visited the Hayadegawa Dam. Like the Shimojogawa Dam, the Hayadegawa Dam is also operated by Niigata Prefecture, and its purpose is flood control, irrigation water, and power generation. Entrance to the dam site General vehicles are not allowed to enter the dam site...
Fukushima Prefecture Dam

0505-Otori Dam

Located downstream from Okutadami Dam, this is a dedicated power generation dam owned by J-Power Development. It is off-limits to the general public. We arrived at the Otori Dam on the back of a microbus provided by Power Supply Development Co. Again, I had not studied the dam beforehand, so I did not know the details of the dam. Although we could not see the entire embankment due to the power plant building, the solid appearance of the embankment is unique to the gravity-type arch. The white object hanging down from the right bank of the embankment is a hydraulic pipe for power generation. / Gravity arch dam / 83m
Niigata Prefecture Dam

0500-Okutadami Dam

A huge dam located on the border between Niigata and Fukushima prefectures that served as the model for the movie "Whiteout" starring Yuji Oda. Okutadami Dam's total water storage capacity is the second largest in Japan, following Tokuyama Dam. It is also the fifth tallest gravity concrete dam in Japan in terms of both height and effective water storage capacity. It is a very dignified dam. And it is quite tall even when seen like this. / Gravity Concrete Dam / 157m
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