The war memorial on Bridge Foot is set to be temporarily moved while work to strengthen the river bank is completed.
As part of the council’s £1.1 million Cenotaph project, the monument and its surrounding features will be dismantled and stored away in a secure depot.
The scheme, which begins on Monday, will structurally improve the supporting river bank and the wall situated to the north of the war memorial.
The project will also deliver upgrades to the appearance of the paving around the monument, as well as improving general access.
The Grade II listed war memorial will be re-sited in its current location after the ‘stabilisation’ work is finished.
The scheme was announced after the masonry river wall – along the section of the Mersey immediately below the monument – was found to be in a poor state during a routine inspection of bridge and riverside structures.
High water levels and increased river flow have exacerbated the condition in recent years, causing part of the river wall to collapse.
The works will be completed ahead of this year’s Remembrance Sunday service.
A council spokesman said: “We propose to deliver this scheme on a design and build basis using Balfour Beatty, through the scape civil engineering and infrastructure framework.
“Balfour Beatty has engaged with the consultants Ramboll Ltd, who have a specialist team of professionals with experience in delivering high-profile heritage projects.”
Council chiefs have previously not ruled out permanently moving the war memorial in the future.