orangeEP@ahirukantaiのブログ一覧

チャリトレ三回目は多摩湖他行ってきました
土日で５０Km

多摩湖は東京の水がめで昭和二年に建造されたそうです
多摩湖、狭山湖の周辺は広くて緑も多くチャリにはぴったりのところです

前から不思議に思ってたのですが、多摩湖、狭山湖の辺りは小高い丘陵になっているんですね
多摩湖、狭山湖の方が標高が高い位置にあって、周辺は湖より標高が低いんです。

それと普通は湖には川が流れ込んでいますが、地図を見てみても多摩湖、狭山湖には流れ込む川が無いんです

不思議ですよね

調べてみると少し離れた多摩川の小作取水堰から引き込んでいるんだそうなのですが、昭和二年に随分と大掛かりな事をしてます。

https://www.tama-river.jp/kiji/image/canoe27/01_ozaku.pdf

取水堰より湖の方が標高が高いと思うので、どうやって水を送っているんでしょうね
あの広大な湖にポンプで汲み上げて水を貯めてるんでしょうか

面白いですね

そのうち小作取水堰にも行ってみたいと思います


http://www.wec.or.jp/library/100selection/content/tamako.html



Bicycle training.
The third time I went to Lake Tama

Lake Tama is said to have been built in 1927 with a water tank in Tokyo.
The area around Lake Tama and Lake Sayama is large and has a lot of greenery, making it a perfect place for bicycle training.

It was strange that the areas around Lake Tama and Lake Sayama are small hills, but the surrounding area is lower than the lake.

Also, rivers usually flow into lakes, but when you look at the map, there are no rivers that flow into Lake Tama and Lake Sayama.

It ’s strange, is n’t it?

When I looked it up, it seems that it was pulled in from the ozaku intake weir of the Tama River, which is a little far away.
Although it was 1927, it was a large-scale construction.

I think the lake is higher than the intake weir, so how do you send water?
Is it pumped up to that vast lake to store water?

interesting!

I would like to go to the ozaku intake weir soon.