A concrete retainer wall collapsed onto Sydney train tracks after the city has been inundated by a week of wet weather.<br /><br />The wall collapsed at about 6pm on Sunday in a landslide that blocked the tracks at Harris Park Railway Station.<br /><br />Residents reported hearing a loud boom at the time of the landslide and wall collapse but no commuters were on the platform at the time and there were no trains at the station. No-one was injured.<br /><br />Clean-up crews say it will take a week to clear the tracks, meaning train delays are expected for at least the coming work week.<br /><br />Investigators say it is unusual the support wall would have collapsed in the wet weather conditions and are intended to quality review other parts of the retainer wall.<br /><br />This video explains how the wet weather may have caused the landslide that collapsed the wall.<br />--------------------------------------------------------<br /><br />TomoNews is your daily source for top animated news. We've combined animation and video footage with a snarky personality to bring you the biggest and best stories from around the world. <br /><br />For news that's fun and never boring, visit our channel:<br />https://www.youtube.com/user/TomoNewsUS<br /><br />Subscribe to stay updated on all the top stories:<br />http://www.youtube.com/subscription_center?add_user=TomoNewsUS<br /><br />Stay connected with us here:<br />Facebook http://www.facebook.com/TomoNewsUS<br />Twitter @tomonewsus http://www.twitter.com/TomoNewsUS<br />Google+ http://gplus.to/TomoNewsUS
