The Samsung Galaxy Fun Run is taking place in the city toight.
The race starts at 9.00pm.
It all kicks off at Custom House Quay, and will then continue along the Liffey and around through the docklands.
To facilitate the run, Custom House Quay will close between Butt Bridge and Talbot Memorial Bridge from 6.30pm until 9.45pm.
Custom House Quay between Talbot Memorial Bridge and North Wall Quay and North Wall Quay from Custom House Quay to Samuel Beckett Bridge will close from 7pm until 11pm.
In addition to temporary road closures there will be Garda operated rolling road closures & lane closures along the race route.