Moss and a dam

 This is a closeup of the moss growing on one of the trees in the park I showed yesterday.

This is a moveable dam, but it is much bigger than any of the others that I have seen. Each of the towers, which rise from the dam support abutments, Has a building on the top. The windows allow the occupants to look out in all four directions, so I guess they have something to do with the disaster. They are high enough that no matter how much rain we get they will still be above water and, considering the distance from the sea, they would still stand after a monster tsunami. One thought I had is that they may store essential equipment in the rooms for use in a disaster.