I thought you'd like to see the flood control system we have installed at the our hospital in Jax. We're directly on the St Johns River and 2 years ago during hurricane Irma we had millions of dollars of flood damage. During the last 2 years we've spent about $6 million on moving electrical switchgear to higher floors, elevating fuel tanks and installing this system of barrier walls.
The worst of our damage was in two building which are 2 and 3 blocks from the river. These were damaged by water entering the building through the walls at the bottom and at the windows. We could not seal the entire buildings with sand bags and the water seeped in.
The system shown here is made up of the vertical frames which are bolted to the ground and wall sections which are installed between verticals. Every piece is gasketed and locks together. As the water pressure increases the gaskets seal. These pics are of one of the buildings that is 3 blocks from the river. We got about 6" of water in about 95% of the first floor.