A dangerous bottleneck on the Quays has been replaced with a new bridge.
It crosses the Royal Canal near the Convention Centre, with two segregated paths for walkers and cyclists.
It's just 12 metres long, and cost almost a million euro to install.
Despite its short length, it is expected to make a big difference for walkers and cyclists.
The wider space sits alongside a protected rolling lift bridge that dates back to the early 1900s.
Jonathan Mullervy, an Engineer with Dublin city council, admitted it was a dangerous bottleneck.
"The protected structure had a footpath 900 metres wide for pedestrians, buggy's and cyclists".
Lord Mayor Paul McAuliffe described the bridge as "fantastic".
"It's going to be used to allow thousands of cyclists along the quays", he said.
Damien Ó Tuama from the Dublin Cycling Campaign said the bridge "makes the quays more continuous for cycling".
Another two bridges are also planned for Dublin.
One that will link Blood Stoney Road to New Wapping Street, and another at the mouth of the River Dodder.