Mr. Flood said the idea of one of the underwater tunnels in New York City collapsing with him in it had occurred to him more than once, given the infrastructure’s advanced age, “but I’ve ...

About three-quarters of a mile of the tunnel is underwater and built from 12 steel tube sections. Wu suggested some solutions to flooding problems in the city, including “green or gray ...

The Mill Creek Tunnel is supposed to help carry rain water from roadways to White Rock Creek in Dallas, but it's still not ...

"Our engineering team created a project alternative, which seeks to prevent Portage Creek flood events from occurring, um, by dropping those flows into an underwater tunnel system or underground ...

Miners hailing from Kinneil and Valleyfield collieries in West Lothian and Fife, respectively, could converge roughly 1500ft ...

Underwater tunnels had people stumped until French-British ... by pressurizing the air in front of the shield to try and stop flooding during construction. Tunneling shields are still used today ...

A second underwater tunnel beneath the River Shannon in Athlone, linking the town's sewer system from east to west, has been ...