Swans and the Asahi River in my town - Japan

We had a heavy rain last night.
The Asahi River is dammed in my town.
The dam discharged water last night,
so the river had swollen. 
Today,the water flowed from the dam with a roaring sound.

There are eighteen swans in the Asahi River now.

I went to watching the 
swans at the river.

The river flowed muddy 
water and strong.

The swans took refuge 
from the flood.

There are two young birds.