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Now Igawa
Last updated on December 10, 2021.
Igawa originates in the mountains of Imai-cho, Hodogaya-ku, and joins Katabira River at 1-chome Iwama-cho, Hodogaya-ku. Since the section downstream of the JR Tokaido Line flows down densely populated urban areas, houses are close to the river, but management passages are secured on both banks. Upstream flows down Tando, but the slopes on both banks of the river are developed and densely populated houses. In addition, as many large flood damage occurred in the downstream area, a tunnel-type underground reservoir was planned under National Highway No. 1, which was completed in 2004.
Currently, Igawa is undergoing river rehabilitation to cope with rainfall with an annual excess probability of 1/6.3, and the revetment has been completed near the Hashimoto-ryu Motomachi, except for Hodogaya Bridge, which is under renovation.
| Igawa Renovation Project | |
|---|---|
| Business Section | From the confluence of Katabira River to Yokohama Shindo (Imai-cho, Hodogaya-ku) |
| Business extension | 4.74㎞ |
| Related information | Section under construction: Hodogaya Hashimoto-style, near Motomachi Bridge, near Koryo High School |
Imagawa Renovation Project Location Map
Imagawa Renovation Project Location Map
River renovation work
Around Motomachi Bridge (renovation of revetment)
Location map around Motomachi Bridge
Photo before renovation
Photo after renovation
Inquiries to this page
River Basin Development Division, Sewerage and Rivers Bureau River Department
Phone: 045-671-3982
Phone: 045-671-3982
Fax: 045-550-3490
E-Mail address [email protected]
Page ID: 434-872-780
