Note that the amount of general waste your population produces depends on the amount of supply they get and whether they recycle. It is not possible to get rid of the general waste entirely, but later on you will be able to research more ways to deal with the waste.
Retaining walls are best built before mining/dumping. They also cannot be built on top of any previously designated mining/dumping areas. Use {0} and {1} keys to raise or lower the wall.
You can build {0} to prevent terrain from uncontrolled collapse. These are designed to hold terrain in place. They can hold up to {1} tiles of terrain.
When there is terrain dug from underneath a building or landslide that buries a building it may trigger building collapse. In that case the building gets lost and it can trigger further landslides and collapses. When mining a deeper mine, terrain can also collapse blocking vehicles from entering or exiting the mine.
This tool enables you to drag over an area to order quick delivery/removal for all selected buildings. If there is no product delivery possible, this tool will act as a boost toggle.