Official

In fact, on the opening map, Hashizume Park other than Kuyasubashi Park seems to be all "Kaede", not limited to Takarabashi, but also "Kaedegawa Danshobashi Park" and "Kaedegawa Shintomibashi Park". (Isn't the Shintomi Bridge over the Kaede River but the "Kaedegawa Tsukiji River Connecting Waterway"? Let's put a word of tsukkomi (laughs)

Also, what about stations other than Takaracho Station? On the map of each station on the Toei Line Nihonbashi / Metro Kayabacho / Metro Kyobashi, Kuyasubashi Park also seems to be "Kaedegawa". I didn't see it all.

Since these Hashizume Parks are Chuo Ward Parks, I contacted the "Chuo-ku Environmental Civil Engineering Department Water and Green Division" over the phone and carefully examined them, and said, "As a ward, unify them with" Kaede River ". I'm going to do it ... " The municipal house near Danshobashi on the left of the photo is also "Hatchobori Kaedegawa House", which is persuasive.

In the first place, there is a monument called "Kaedegawa-Kyuanbashi ..." in Kuyasubashi Park itself (pictured right).

So, if you think about it normally, it would be a mistake in writing a map of Takaramachi, but things are not so simple. There are still many examples of "Momijigawa". Also, the fact that "Kuyasubashi Park" Only "in some cases," may actually have a deep meaning ...? I'll explain the reason later.

In the vicinity of the central police station in Kabuto-cho, there used to be "Momiji River High School". Currently relocated to Edogawa-ku, but a monument commemorating the site is left next to the police (left photo).

And there, "The origin of the school name was derived from the name of Kaede River, which was located at the confluence of the Momiji River and Nihonbashi River, whose water source is Momijiyama in the Imperial Palace."

In addition, the right photo is a part of the explanation board of "Mitsuhashi Ruins" set up by the Chuo-ku Board of Education, but here, "Momiji" is also given a pretend kana.

When I contacted Momijigawa High School by phone, it was said that the monument was not a high school, but was set up by the Board of Education. Apparently, the Board of Education seems to be pushing the Momiji River.

Also, since the Chuo-ku Tourism Certification Official Text, "Chuo-ku Monoshiri Encyclopedia", often mentions the explanation board of the Board of Education in the text, all readings are unified with "Momiji River". . The sightseeing test itself is also given a kana called "Momijigawa" in Kaedegawa.

Why are two types of reading kana mixed?

After examining various things, I found an article that persuasive to the back issues of Kyobashi Library's "News from Local Room" (Nos. 71, 72, 111). By the way, in these articles, Kaede River is all unified with the reading "Kaede River". You can read it here from the local room.。

It is very long to quote the full text, so if you write it in a nutshell ...

１） Shortly after the opening of the Edo shogunate, there were several waterways excavated from Edo Maejima in the east-west direction. Momiji River (Momiji River) is one of them.

２） At the same time, landfill work was carried out in the area of Kayabacho and Hatchobori, but at that time, in consideration of water transportation, it was reclaimed with a little gap from Edo Maejima. The long gap between this north and south is the Kaede River.

Anyway, instead of "Kaedegawa" alone, it seems that various things can be understood by comparing it with the "Ajimigawa" that once existed. In addition, the author concludes, "The maple leaves a maple when the maple leaves. On the other hand, maple is also synonymous with maple. Either way, these two waterways were a stylish naming that tells us that they had a united relationship. "

※I quoted it in the original text, but I think the author's personal opinion is the author's opinion when maple turns red. Rather, the point is that the two rivers (waterways) of "Momijigawa" and "Kaedegawa" existed at the same time.

※※The photo above is one of the Edo maps of the Kanei era, which is said to be around 1632, by myself based on the news from local history. (The Kanei era Edo map has many copies, but the photos are from the Diet Library. Bibliographic ID: 00000744054)

The above photo is also an excerpt from the Kanei era Edo map (the source is the same).

Momijiyama in Edo Castle, which has appeared on the monumentartificial hill? That's right. Even today in the 21st century, it remains its name in "Momijiyama Sericulture Center".

However, given that both the Momiji River and the Kaede River were artificial waterways, the origin monument "Momijiyama as the water source ..." may be a fantasy that later generations thought about. (^^)

Kaedegawa remained relatively recently (1960s). However, the western half of the Momiji River was reclaimed during the Masayasu period (1644-47), and became Nakahashi Hirokoji (fire repellent area). And it seems that it completely disappeared in 1843.

The fact that only Momijiyama and Kaedegawa remained even though the Momiji River disappeared may be the cause of "Kaedegawa = Momijigawa".

If you write this way, Kaedegawa may be able to read as if "Kaedegawa" is the correct answer and "Momijigawa" is misuse. Certainly, when both the Momiji River and the Kaede River existed, I think it would have been confusing if they had not been called separately.

However, since the reading of proper nouns is not determined by equations, as in the 21st century, if there are many people who call them "Momijigawa", I think "Momijigawa" may be fine. However, you have to be careful not to believe that reading "Momijigawa is the only correct answer."

By the way, if you say Kaedegawa in your personal name (surname), it seems that you call it "Momijigawa" for some reason (also known as my acquaintance). Surprisingly, there may have been some influences.

Finally, regarding the location of the Momiji River Waterway, the current map shows that it is equivalent to the section from Kuyasu Bridge on Yaesu Street to Sotobori-dori St. Yes, the Kuyasu Bridge at the beginning appears again here!

So, on the map of the Toei Line at the beginning, for some reason only Kaedegawa Kuyasubashi Park is written as "Momijigawa" means that "the area around Kuyasu Bridge is the starting point (end point) of the former Momiji River" I'm convinced if I think it was put in the meaning (^^).