The sections of two central city roads will be closed for good to make way for Christchurch's new stadium.
The Christchurch City Council is preparing the site for the $470 million dollar multi-use arena due to be unveiled by the end of 2024.
Motorists will be unable to use Cashel and Lichfield streets between Madras and Barbadoes.
Initially, this will be to remove or change street lights, cables and underground pipes.
Spokesman Alistair Pearson said traffic congestion is likely, but they need to be closed to build the arena.