Nurdağı Tunnel on Gaziantep-Adana YHT (High Speed Train) will Türkiye's longest rail tunnel.
5 Hour 20 minute train travel will become 1 hour 30 minute
https://www.haberturk.com/tamamlandiginda-turkiye-nin-en-uzun-tuneli-olacak-2557925-ekonomi
China building its first undersea high-speed rail tunnel
http://www.xinhuanet.com/english/2020-03/25/c_138916008.htm
#China
"Bray rail tunnel now only has a life expectancy of 15 more years in a 'do-nothing' scenario"
https://www.herald.ie/news/bray-rail-tunnel-risks-collapse-in-15-years-unless-erosion-is-tackled-39108790.html
#Eire
New Civil Engineer gives has a good coverage of the scope of wo...has been awarded, for strengthening the Snow Hill rail tunnel lids beneath Smithfiel...ewcivilengineer.com/latest/engineers-to-strengthen-rail-tunnel-beneath-new-museum-of-...