One month after the flood caused by heavy rain in early August, the Iwaki River is still muddy.

The Iwaki River, which originates from Ganmoridake in the Shirakami Mountains, is a first-class river that flows through the Tsugaru Plain and into the Sea of Japan. The flooding of the Iwaki River caused by record-breaking rainfall in August 2022 caused damage to agricultural land along the riverbed.

Since mid-August, there have been comments online such as, "It's hard to get rid of the turbidity caused by heavy rain" and "It's still muddy."

Tsugaru Shirakami Lake, a dam lake of the Tsugaru Dam, which was built for the purpose of flood control of the Iwaki River and irrigation of the Tsugaru Plain, is currently in a state of turbid water. An employee of the Iwakigawa Dam Integrated Management Office Management Section said, ``Due to heavy rain, turbid water flowed in from upstream, and the water level of the dam lake rose to an altitude of 210.52 meters, but now it has fallen to the same level as in normal years. There is," he says.

According to the staff, Tsugaru Dam is working to reduce turbidity by directing less turbid water from the upstream Shimizu Bypass. "This is the first heavy rain like this since the dam started operating in 2016, and it is unclear when the current turbidity will be resolved," the official said.