The BBC has the story – see link above. The 80th anniversary of the opening of the Queensway tunnel is being marked.
The 2.13 mile (3.4 km) tunnel linking Liverpool and Birkenhead was opened by King George V on 18 July 1934.
It was the first road tunnel under the River Mersey and took almost nine years to build.
This reminded me of the 2nd Tunnel being opened in 1971 when I walked through it with my parents gathering autographs of the people who worked on it. Here are a couple of interesting photos of that event:-