Blacksnake Creek Tunnel in St Joseph in Kansas. USA. Super Excavators reports progress despite some "setbacks" with the Chinese tunnel boring machine.

"Setbacks stopped the project more than once, but Garbeth says they are making progress and have an end date in sight.

According to the St. Joseph Public Works Department, the machine was wired incorrectly for American use by the Chinese manufacturers and had to be completely rewired before tunneling could begin. Then electric drives had to be repaired after a failure."

https://www.newspressnow.com/news/local_news/blacksnake-tunnel-advancing/article_0f7c424a-c5b4-11e9-9fbf-d3a94d1b9b1d.html