New details about the high-speed route, which is part of a rail project that has been years in the making, have now been ...

The aqueduct was finished in a miraculous eight years despite many trials and tribulations (including seepage in the San Jacinto tunnel, seen here at mid-point on the map). Los Angeles received ...

Los Angeles tunnels were initially built to ease traffic but later became a haven for speakeasies during Prohibition. Hollywood history includes tunnels being used for filming locations and moving ...

Billionaire entrepreneur Elon Musk wants to help Los Angeles motorists stuck in traffic not by launching them into the sky, but by putting them underground. On Wednesday, an underground test tunnel ...