Tens of thousands of Aucklanders will walk and cycle through Auckland's Waterview Tunnel after it is formally opened tomorrow, before opening for business next month.
The turnout for the five ticketed open days through the twin tunnels will be the city's largest for a public project since the 1950s when 106,000 people walked across the Auckland Harbour Bridge before it was opened by the Governor-General Lord Cobham on May 30, 1959.
After months of delays, Prime Minister Bill English will open the $1.4 billion Waterview Tunnel to complete a second motorway route through Auckland - five years after work started.
Each of the tunnels was bored by a giant machine named Alice. The amount of dirt excavated was enough to fill 320 Olympic-sized swimming pools.