A section of the M7 in Co Kildare remains closed today and into the early hours of tomorrow.
As part of upgrade works, a new bridge is being installed and the motorway is closed in both directions between Naas North and Naas South.
Motorists are being diverted on to new slip roads, and a temporary speed limit of 25 kilometres per hour is in place.
The road will re-open by 9am tomorrow.
"We are putting in the overbridge there at Osberstown which is the new interchange for the Sallins by-pass," explained Niall Morrissey, Kildare County Council's Director of Services for Roads.
"The public will be diverted up the off-ramp around the works and back down the on-ramps that are newly put in place."