The massive east headwall in the South Island launch shaft is now complete, and the 14 m (46-foot) external ring at the start of the new tunnel was recently bolted onto the headwall.
Next steps include placing and assembling the front shield of the TBM in its support cradle at the base of the launch shaft - Mary will start her journey next year.
Click here for more details on the HRBT expansion project updates, here and us/125 for the tunnelbuilder archive reports. Also visit www.hrbtexpansion.org. 47/22.
01.07.2025 Germany
01.07.2025 Poland
03.07.2025 Czech Republic
04.07.2025 Norway
10.07.2025 Germany
15.07.2025 Spain
22.07.2025 France
28.07.2025 Austria
28.07.2025 Brazil
29.07.2025 Czech Republic
29.07.2025 Germany
31.07.2025 France
11.08.2025 Switzerland
14.08.2025 Switzerland
19.08.2025 Spain
01.09.2025 Brazil
01.09.2025 Switzerland
15.09.2025 Sweden