This presentation is titled Ice Forces on Pile Structures Due to Changes in Water Level Under Flooding Conditions. In cold offshore regions, changes in water level can induce vertical forces on structures when sea ice cover interacts with the structures. A rise in water level generates an upward force on pile structures; likewise, a drop generates a downward force. In this presentation, I propose a method of calculation that estimates the vertical ice forces on pile structures due to changes in water level under flooding conditions.