Today, L.A. Metro’s subway tunnels connect some of the city’s most densely populated neighborhoods. There are many other ...

A Los Angeles City firefighter was hospitalized after his SUV was swept into the Pacific Ocean during a mudslide in Malibu.

PART ONE: The history of some Southern California tunnels and ... were built on Mount Baldy Road in the San Gabriel Mountains, approximately two miles north of the Mountain Avenue intersection.

Parts of Pacific Coast Highway remained closed due to heavy flooding and mudslides in Southern California, according to state officials.

As a principal engineer for the county’s Public Works Department, Klippel’s job is to try to stop catastrophic flows of mud, ...

Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring ...

Crews have rushed to clear out basins designed to catch mud, rocks and other debris from tumbling into neighborhoods as ...

There were 106 homes under mandatory evacuation order. The area will be limited to only residents through 2 p.m. Friday.

Street flooding and mudslides, and a weak tornado, were reported across the region as the storm barreled through Thursday evening.

Here is a sampling of upcoming things to do in the San Gabriel Valley area.