Can heavy equipment/vehicles be driven on the liner?
It is always recommended that heavy equipment/vehicles not be driven directly on the installed liner when avoidable. It can be done under certain conditions however. Typically, if the sub-grade was rock free and the equipment/vehicle is driven carefully and slowly without making any sharp turns, there is not a problem. A common practice is to have minimal air pressure in the tires. In cases where the entire liner is to be covered with clean fill, a “road” at least one foot deep can be built ahead of the equipment operator who continually extends the road out ahead of him until the area to be covered is finished. We have some nice photos of operators doing this. The Key is to dump and level, not just push from one end as this may cause the liner to “roll” underneath and can cause tension on the liner.
