More than 100 Queenslanders have left their mark on the Cross River Rail tunnel during a "once-in-a-lifetime tour" before rail tracks for a multi-billion dollar project are laid.
The northern portal entrance, next to the inner city bypass, was open for people to walk through on Sunday.
Members of the group signed their names on a commemorative board that will be preserved on a wall in the tunnel.
Stretching from Dutton Park to Bowen Hills, Cross River Rail is a new 10.2-kilometre rail line that includes 5.9km of twin tunnels under the Brisbane River and CBD.
Read More: https://www.abc.net.au/news/2022-05-30/brisbane-cross-river-rail-tunnel-walk-public-tour/101108526