Auckland Mayor Phil Goff says the construction of a second crossing for Auckland Harbour (Waitematā Harbour) will start by the end of this decade and it will most likely be a tunnel beneath the harbour.
"Cancer-causing erionite may be released during the tunneling for the second crossing for Auckland Harbour (Waitematā Harbour)"
"Erionite kills by causing mesothelioma, just like asbestos does, only worse"
https://www.rnz.co.nz/news/national/426627/deadly-mineral-erionite-could-complicate-waitemata-tunnel
A $7.7m hunt is on for a deadly mineral beneath Auckland, but has already run into objections from city rail tunnellers.
A light rail connection from Albany in Auckland’s north to the airport in the south is one of the options being weighed up for future crossings of the Waitematā Harbour.
A light rail line underneath the Waitematā Harbour is a favoured option for officials mulling Auckland's public transport future, a study shows.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.newshub.co.nz/home/new-zealand/2020/09/auckland-harbour-bridge-work-on-second-crossing-expected-to-begin-at-end-of-the-decade-phil-goff.html
Auckland Harbour Bridge: Work on 'second crossing' expected to begin at end of the decade - Phil Goff
www.newshub.co.nzThe latest estimates suggest the project will cost around $8 billion.