A utility tunnel, utility corridor, or utilidor is a passage built underground or above ground to carry utility lines such as electricity, steam, water...

usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used...

cities in the world. The tunnels are used for road vehicles, pedestrians, Underground and railway lines and utilities. Several tunnels are over a century old:...

through utility tunnels, which are often intended to be accessible solely for the purposes of maintenance. Nevertheless, many of these steam tunnels, especially...

Roof and tunnel hacking is the unauthorized exploration of roof and utility tunnel spaces. The term carries a strong collegiate connotation, stemming...

of the world's largest utility tunnels, mainly for Walt Disney World's Magic Kingdom in Florida. The utilidors, short for utility corridors, are a part...

Two road tunnels were built in East London at the end of the 19th century, the Blackwall Tunnel and the Rotherhithe Tunnel; and the latest tunnel is the...

Large utility vaults are similar to mechanical or electrical rooms in design and content. Dartford Cable Tunnel Telecommunications pedestal Utility cut...

The Dartford Cable Tunnel is a 2.4 km utility tunnel beneath the Thames, upstream of the Dartford Crossing. With a diameter of ~3 m (10 ft), it carries...

create a utility tunnel. Such a tunnel may be dug by boring or by using a trench for cut-and-cover construction. The advantages of utility tunnels are the...