What depths are typically used in the valley or ravine landfill method for "lifts"?

The typical depths used for lifts in the valley or ravine landfill method are generally in the range of 8 to 10 feet. This range is optimal as it allows for effective compaction of waste materials while also considering stability and the potential for leachate management.

When engaging in landfill operations, particularly in valleys or ravines, achieving the appropriate lift height is crucial to managing waste effectively and ensuring compliance with environmental regulations. A lift that is too shallow may not allow for sufficient volume or compaction, while a lift that is too deep could lead to difficulties in managing the waste, disrupting the operational flow, and increasing the risk of environmental issues such as groundwater contamination.

Overall, the chosen depth must strike a balance between operational efficiency and environmental safety, which is why the 8 to 10 feet range is commonly employed in practice.