Police were called to the scene shortly before 3pm following concerns for the welfare of a man.
A Cheshire Police spokesperson said they arrived to find the man in the water underneath the bridge. He was removed and treated by paramedics at the scene before being airlifted to hospital.
It happened a year to the day that a man in his 30s jumped more than 30ft and emerged from the water near the Garden Lane area.
He was thoroughly checked out and detained for a time under the Mental Health Act.