Re: Re: Graving docks at Grand Canal Dock. Home › Forums › Ireland › Dublin Graving docks / Grand Canal Docks / Alexandra Basin › Re: Re: Graving docks at Grand Canal Dock. August 22, 2008 at 3:53 pm #793052 AnonymousInactive Re the Phibsboro dock, I have since seen an OS map which locates it pretty exactly, with the entrance at a 45 degree angle between the existing main channel of the Royal and the long filled in Broadstone branch. Latest News