The tunnels were built in the 1970s, planned as a future transit system and then abandoned. Crews began filling the tunnels ...

The San Jacinto Tunnel is a 13-mile-long, concrete-lined water tunnel built between 1933 and 1939, carrying Colorado River ...

The damage was likely caused by a truck grazing the ceiling, state officials say. Repair work to the ceiling will be done at ...

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

The project offers a path forward that secures energy supplies, protects the Great Lakes and drives economic growth. The ...

The province has now issued a request for proposals for a study to determine the feasibility of a tunnel under Highway 401 ...

The tunnels, mostly built with unreinforced concrete or masonry, collect storm water from streets and rooftops and carry it to the Mississippi River. Increased urban runoff and heavy rains frequently ...

Burglars tunneled through a concrete wall to gain access to a Los Angeles jewelry store, making off with at least $10 million worth of watches, pendants, gold chains and other merchandise ...