Why shutting down 405

The Freeway is nearly vacant as construction crews demolish a portion of the Mulholland Drive bridge along the Freeway September 29, in Los Angeles, California. Construction crews work to demolish a portion of the Mulholland Drive bridge along the Freeway September 29, in Los Angeles, California. A worker services a piece of heavy machinary in vacant lanes of the Freeway September 29, in Los Angeles, California.

Construction crews work to demolish a portion of the Mulholland Drive bridge that spans the Freeway September 29, in Los Angeles, California. Workers demolish the south side of Mulholland overpass on the freeway during the hour total freeway closure resulting in massive traffic disruptions expected throughout the region on July 16, in Los Angeles, Calif.

Los Angeles officials have again shut down a ten-mile stretch of one of the world's busiest freeways to rebuild a bridge before the morning rush on Oct. A traffic signs alerts motorists on Interstate of the shutdown one day before workers start demolishing the Mulholland Bridge on Interstate at the Sepulveda Pass during the mile shutdown from July for 53 hours in in Los Angeles, California.

Los Angeles city officials are advising residents to stay home fearing massive traffic jams of what has become known as "Carmageddon. Wilshire Ramps To To Be Closed Officials say we could be headed towards a bigger and badder version of "Carmageddon" when a scheduled Freeway closure hits at Wilshire Boulevard. Public Transportation Use Hits Record Levels During 'Carmageddon' Riders hopped aboard regional Metrolink trains at record levels during the closure of a stretch of the Freeway, according to transit officials.

Bike Vs. Helicopter Tours Offer Bubbly Alternative To 'Carmageddon' The tour — which lasts about 45 minutes — will also include other famous sites around the Southland, including Griffith Observatory, the Hollywood sign and other landmarks. Westside, Valley Bus Riders Ride Free On Car-Mageddon Weekend Car-mageddon weekend promises to be a blessing in disguise for bus riders, who will get to ride free on a total of 26 bus lines along major Westside and San Fernando routes.