There are now 21 bridges over the Liffey from Chapelizod to the sea.
And like the Rosie Hackett some are for public transport only.
Most of the bridges were renamed following Independence and like the Rory O'Moore and Mellows bridges honour patriots.
The more modern bridges, such as the James Joyce have tended to honour writers. But almost half were originally built in the nineteenth century.
The Millennium Bridge is one of three to cater for pedestrians only, while the most famous - O'Connell Bridge - caters for four lanes of cars.
Now the Rosie Hackett will cater for all traffic except private cars, eventually carrying the southbound LUAS linkup.
Watch our report on the official opening of the Rosie Hackett bridge here.
Five of the bridges - nearly a quarter - were built in the past 15 years.
Anna Livia Bridge (1753)
Island Bridge (1792)
Liffey Viaduct (1877)
Seán Heuston Bridge (1828)
Renamed after patriot
Seán Sherwin Bridge (1982)
Named after councillor
Rory O'Moore Bridge (1861)
Renamed after patriot
Mellows Bridge (1768)
Renamed after patriot
James Joyce Bridge (2003)
Named after writer
Fr Matthew Bridge (1818)
Renamed after temperance campaigner
O'Donovan Rossa Bridge (1816)
Renamed after patriot
Grattan Bridge (1875)
Renamed after patriot
Millenium Bridge (1999)
Hapenny Bridge (1816)
O'Connell Bridge (1877)
Renamed after patriot
Rosie Hackett (2014)
Named after patriot and union activist
Butt Bridge (rebuilt 1932)
Named after patriot
Loopline Bridge (1891)
Matt Talbot Bridge (1978)
Named after religious figure
Seán O'Casey Bridge (2005)
Named after writer
Samuel Beckett Bridge (2009)
Named after writer
East Link Bridge (1984)
For more information go to bridgesofdublin.ie
