Drivers have been asked to avoid Switch Island until the signal control box is repaired.
The control box was 'destroyed' after a vehicle hit it on Saturday (May 7) afternoon, turning most of the lights out and causing heavy queues to build at the busy junction. Emergency traffic control measures have since been put in place while contractors work to fix the problem.
Traffic news service Inrix initially said the problem would not be fixed until May 13 or May 14. However, Sefton Council told the ECHO it hopes new equipment will be ready for installation overnight and normal traffic flow will be restored by Tuesday, May 10.