The Silver Jubilee bridge between Runcorn and Widnes will close for three months.
The plans began on February 6, with a view to install lighting onto the bridge, which can be lit up in different colours to mark celebrations and events. The works mean that vehicle access across the bridge will be completely restricted on weekdays until May 2023.
Access will be maintained for bus services, pedestrians and cyclists. Drivers wishing to cross the Silver Jubilee Bridge will be directed to a signed diversion route that uses the Mersey Gateway.