Please allow buildings and land to break and/or wash away

I think it would be great to allow for levees, landcaping structures, and dirt blocks to break if subjected to large waves or the force of a large reservoir/ dam structure. This would create a need for reinforcement of the lower levels of a dam, perhaps by making the walls thicker as they go down much like a real beaver dam.
If the force of water pressure in a reservoir can be calculated on a given block then each block could be assigned a strength rating. If the force exceeds the strength rating of the block then it disappears and water can flow. However, if on the opposite face of the pressure another block exists then any any excess pressure beyond the failure point is passed to that block. only if both fail will there be a breach, if not they both stay.
This could also be implemented to see if building get washed away in high flow rate areas if they are completely submerged.
I think that if a flood season is implemented this would create a good challenge for players.
Thank you