21. After getting sealed inside the cave, Tintin finds an underwater tunnel leading out to the lake. 22. Near the Ladozhsky Bridge there is an underwater tunnel to host a gas pipeline Nord Stream. 23. The machine will excavate a 5 km-long underwater tunnel , working at pressures as high as 5 bars. 24. By 1950, Singstad had designed and overseen the construction of more underwater tunnels than all other engineers combined. 25. She is left in an underwater tunnel , and so her body gradually decomposes along with her unborn son. 26. His son, Sambhaji, tried a unique approach to capture the fort : digging an underwater tunnel to enter. 27. Carter is trapped along with 100 American underwater construction workers tricked into working on the immense underwater tunnel . 28. Two underwater tunnels , the Fruitvale, and High Street bridges connect Alameda to East Oakland over the Oakland Estuary. 29. The "'Thames Tunnel "'is an underwater tunnel , built beneath the River Thames in London, connecting Rotherhithe and Wapping. 30. Sylvester Stallone takes a step backward, and into a collapsed underwater tunnel between New York and New Jersey.