At 19 minutes four seconds if I have it correctly, there's a pretty lucrative business taking sand from the ocean. It would be nice if they shifted to the rivers although that's a heck of a lot of sand needed. Not trying to be rude just opening up new opportunities to look into because ocean sand is mighty nice for such things mentioned at the time occur above as well. Although the amount of sand being taken is causing damage and other locations I'm seeing. Also prior to the Time Marker thank you for your diagram I don't think people think that long-term much nowadays and I hope this takes hold quite well. If for some reason I do not make another comment thank you for your time and effort for you and the team who has done this clip and information along with the effort put forth to create such a clip. (That includes all the work.)
I'm three quarters the way through the video although I need to go, I wanted to leave a little interesting information here because I don't think you guys have them in your area. As of to construction materials remember possibly if you can or look into the fact that in the tri-state area we still have wood burning power plants. By utilizing the ash and just somehow creating a way to capture the Creo sit and excess present from the pipes and chimney one could create a pretty solid brick or other material. Besides for these plants not utilizing the fact of dredging the rivers for more material there's so much material being not used and considered waste. This is just a small sliver of the whole trunk of information although thank you for bringing forth this material idea and I hope it catches as I mentioned in my previous comment. Be well and apologies about any autocorrect corrections that make no sense
