Changes in river channels at end of airport runway No flash player has been set up. Please select a player to play Flash videos. Video not playing? Update your browser or download the video clip While standing at the end of the airport runway, Sam Demientieff talks about changes in the river channel. Process Observed: Ice CollapseChanges in River Channel Date Process Observed: Wednesday, March 23, 2011 Galleries: End of Airport Runway Gallery