Santa Ana Canyon

This trail served as the primary means of passage to the Big Bear area up until the Santa Ana flood of 1916, when most of it was destroyed.

This was the largest wildfire in Santa Ana Canyon since 1969, when fewer people lived there, making the Freeway Complex Fire much more dangerous.

[2] By 2:30, fueled by high winds and low humidity, it had burned 2,000 acres (3.1 sq mi) and was 0 percent contained.

The arterial begins at Vermont Avenue in Torrance as Del Amo Boulevard and continues through Carson, Long Beach, Lakewood and Cerritos.

The arterial continues through Buena Park, Anaheim and to Yorba Linda where La Palma terminates after its intersection with Gypsum Canyon Road.

One proposal is to entirely bypass the canyon by drilling through the Santa Ana Mountains to provide an east-west connection from SR 241 directly to Interstate 15.

Their goal was to relieve some of the traffic that SR 91 carries daily; previously, they ended at Green River Road, without continuing further into Corona.

91 Express Lanes customers pay tolls from pre-paid accounts, using a FasTrak transponder — a pocket-sized radio transmission device mounted to the inside of their vehicle's windshield.

The 91 Express Lanes was born from the need for congestion relief on the 91 Freeway when no public funds were available to solve this critical transportation problem.

Since the project opened in 1995, transportation officials from 21 U.S. states and 23 countries have visited the 91 Express Lanes to study its advanced systems and operations.