Strengthening and restorative repairs to the landmark on Sumner's esplanade, which dates back to the 1930s, are finished and the construction site has been pulled down.
The initial completion date was meant to be in January, but it was pushed out several times due to complications with the earthquake-damaged structure.
It was set back to February and again to late March after contractors found the concrete in worse condition than initial investigations suggested.
Christchurch City Council head of parks Andrew Rutledge said there is only minor detailing requiring finishing, but this will depend on the current Covid-19 response.