River Dodder 3.86

The River Dodder is one of the three main rivers in Dublin, Ireland, the others being the Liffey, of which the Dodder is the largest tributary, and the Tolka.Course and systemThe Dodder rises on the northern slopes of Kippure in the Wicklow Mountains, and is formed from several streams. The headwaters flow from Kippure Ridge, and include, and are often mapped solely as, Tromanallison (Allison's Brook), which is then joined by Mareen's Brook, including the Cataract of the Brown Rowan, and then the combined flow meeting the Cot and Slade Brooks.In the river's valley at Glenasmole are the two Bohernabreena Reservoirs, a major part of the Dublin water supply system.The Dodder is 26km long. It passes the Dublin suburbs of Tallaght and then Firhouse, travels through Rathfarnham, Templeogue, Rathgar, Milltown, Clonskeagh, Donnybrook, and Ballsbridge, and enters the Liffey near Ringsend, along with the Grand Canal, at Grand Canal Dock.