The slip road connecting the Marsa-Ħamrun Bypass to the Mrieħel Bypass will be reopened for daytime use on Tuesday, Infrastructure Malta said.
The slip road is being rebuilt and the work is ahead of schedule, the agency said.
Contractors have replaced the foundations and resurfaced the road as part of the project to widen the Marsa-Hamrun Bypass to six lanes.
The road was originally planned to remain closed until Friday, at all hours. It will now only be closed at night until works are completed.
Infrastructure Malta said it is also carrying out several other works during the night including the second phase of the Marsa junction and improvement of the connections between Triq Aldo Moro (old matchsticks factory area), Triq Dicembru 13 and the Marsa-Hamrun Bypass.
These overnight works, including the laying of the final asphalt surfaces of the upgraded roads and junctions, will require partial lane closures during the night as well.