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A new fishway in Katabira River!
Last Updated September 11, 2018
Ayu is now able to go up upstream!
In order to improve the upstream environment for ayu and other fish in Katabira River, a fishway was installed at the head of Tsurumine Hashimoto-ryu (completed in June 2017).
As a result, Ayu, which had been stagnant downstream of the head, due to a drop of about 1.5m before installation, can now be confirmed even upstream of the head work.
※What is the difference?
The head work (floor stopper, floor fixing, protective work) is a structure that prevents river scouring and maintaining the longitudinal and cross-sectional shape of the river.
Due to the head, the slope of the river is gentle, and the rapid flow during the flood is eased. Many rivers managed by Yokohama City have steep slopes, so in many cases, head works are set up to prevent river scouring.
| Inquiry about fishways | For more information, please contact the "River Planning Division". River Planning Division: 045-671-2869 |
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| Action Plan | Ayu goes up Katabira River Action Plan Click here for materials (PDF: 6,516KB) |
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| Action Plan (Summary Version) | Katabira River Action Plan (Summary Version) Click here for materials (PDF: 1,379KB) |
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For inquiries to this page
Sewerage River Bureau River Department Planning Division
Phone: 045-671-4215
Phone: 045-671-4215
Fax: 045-651-0715
Email address: gk-kasenkikaku@city.yokohama.lg.jp
Page ID: 201-856-385
