A wastewater treatment tunnel whose construction took 11 years was inaugurated by President Andres Manuel Lopez Obrador in the Mexican municipality of Huehuetoca.
https://www.plenglish.com/index.php?o=rn&id=50284&SEO=mexico-inaugurates-wastewater-treatment-tunnel-after-11-years
#Mexico
There is a lot of China-fetish going around. Therefore I shall counter with post some Herrenknecht videos.
It is from the series called "Tunnel Boring Machinery for Mexico:| Made in Germany"
It says a lot about the TBMs in general. I hope you enjoy.