31 workers rescued after partial tunnel collapse in Los Angeles

https://ktla.com/news/local-news/workers-trapped-after-tunnel-collapses-in-wilmington/

Of course $HIT pipe construction can be very dangerous.

 https://www.cnn.com/2025/07/10/us/los-angeles-tunnel-collapse-rescue-hnk

https://www.nytimes.com/2025/07/10/us/tunnel-collapse-los-angeles-trapped.html

https://caleywater.co.uk/blog/2024/08/29/the-engineering-marvel-beneath-tokyo-the-worlds-largest-sewer/

https://www.zoomdrain.com/blog/2022/september/the-worlds-largest-sewer-is-in-tokyo

https://www.atlasobscura.com/places/g-cans-worlds-largest-drain

https://jf-databits.blogspot.com/search?q=urban+shit