Kanto Development Bureau / Start of test water flow using Kasumigaura Water Conveyance, Verification of water quality improvement in Sakura River
Naka gutter that takes in water from the Naka River. Purify the water quality by flowing clean water into the Sakura River and Lake Senba (from press release materials)
The Kanto Regional Development Bureau's Kasumigaura Water Conveyance Construction Office and others cooperated with Ibaraki Prefecture and Mito City to start test water flow using part of the Kasumigaura water conveyance under construction on the 16th. A maximum of 3 cubic meters of water per second will flow from the Naka River in the northern part of the prefecture to the Sakura River, which flows through Mito City, to verify whether it will improve the water quality of the Sakura River. At the same time, we will also check the function of the Lake Senba Water Transfer Facility being developed by the prefecture. Water will be supplied twice from 16th to 28th and from 5th to 16th September.
The Kasumigaura Water Transmission Project, which is under construction by the government, is planned to connect the Naka River to Kasumigaura via the Sakura River, and one of the goals of the development is to improve the water quality of the Sakura River. The Mito Tunnel, which runs approximately 6.8 kilometers from Naka Airport through Sakura Airport to the Mito Shaft, was completed in 2006, and this section will be used for test water flow. Until now, water has been passed through the Naka River when testing measures to prevent fish from entering the river.
Lake Senba is used as a waterfront space that is familiar to the citizens of Mito, but the amount of inflow is small and the deterioration of water quality has become a problem. For this reason, the prefecture is constructing a water intake weir on the Sakuragawa River and developing the Lake Senba Water Conveyance Facility, which will lead a maximum of 3 cubic meters of water per second to Lake Senba. At the same time as the test water flow, water is also flowed to the water conveyance facility on a trial basis to confirm its function.
