Official

There is a homepage with the long title of the online civil engineering museum "Dobo Hirokawa Exhibition Japan River Scenic Area 20 Separation-Countries and Similar to Mountains". About this, "Sumida River is ranked as" Yokozuna "! "I posted an article last summer. " This is the sequel.
https://tokuhain.chuo-kanko.or.jp/detail.php?id=653

On January 8, 2020, the content of the above "River Exhibition" was updated, and the ranking "Lost Kawa Edo / Tokyo Numbering" was added, so please take a look.
http://dobohaku.com/river/portfolio/banzuke_ushinawareta/

Considering the history of Edo and Tokyo, it may be a natural result, but Chuo-ku, located in the lowlands, and the surrounding rivers, are ranked as follows.

Yokozuna Dosanbori
Okanto Horidome River and Nishiboridome River
Sekiwaki Sanmabori
The front 3rd Sotobori River
The front 4th Yachimachibori (Hatchobori, Sakuragawa)
5th Hamacho River
7th in front of Ryukagawa River
9th in front of Kaedegawa

It's a good walk to the ruins of the abandoned river. I wanted to know the way of thinking about rankings.
Reclaimed rivers include the Hakozaki River, Shinkawa, Echizenbori, Kyobashi River, Tsukiji River (including the Nanshi River and Higashi Branch River), Shiodome River, Irifune River, Tepposu River, Tsukuda River, etc. .

(Reference Materials)
Chuo-ku Folk Tenmonkan 70th anniversary of the enforcement of the 18th special exhibition Ward Administration “Ayumi in Chuo-ku: Postwar Development and Changes in Town”