From the council (I've paraphrased):
Due to the Clerk Street resurfacing work, the Rankeillor St / Gifford Park toucan crossing will be closed for roughly a week, starting some time next week.
A temporary pedestrian crossing will be placed at either Bernard Terrace or St Patrick Square and there will be pedestrian barriers along the edge of the carriageway. Cyclists will need to dismount and use the footway. Appropriate signage will be in place.
East Preston Street will reopen on Friday and then Hope Park Terrace / Bernard Terrace will be closed at South Clerk Street on Monday in a mirror image to the closure/diversion which has been in place at East Preston Street.