札幌市南区の定山渓ダム。
大雨や台風でダムに流れ込んだ木が回収され、市民に無料で提供
考えたな。
流木と細かく砕いたチップが有るらしい
1時間ほどでほぼ無くなったということだから
無料配布は来月10日までですと

詳細
Details
https://headlines.yahoo.co.jp/hl?a=20170811-00000004-hbcv-hok

Sapporo Minami-ku “Jōzankei Dam”
Trees that flowed into the dam with heavy rain and typhoons were collected and provided to citizens for free
I thought.
There seems to be driftwoods and finely crushed chips
Because that was almost lost in about 1 hour
Free distribution will be until the 10th of next month