Wednesday, August 15, 2012

Signs of the Times: Carmaggedon II is Coming!

As we did last year, Caltrans will begin gently easing motorists into the full-freeway closure of I-405, scheduled for the last weekend of September, with 64 Changeable Message Signs (CMS) on most Los Angeles freeways.

The CMS notices will begin appearing the evening of Friday, August 17 and will be in effect every weekend until two weeks before the closure; at that time, the message will be displayed around the clock. 

More than 30 additional signs will be placed at freeway locations as the closure nears. Approximately 40 to 50 such signs also will be posted on various surface streets in Los Angeles County.  Signs also are appearing on north/south routes around the state from Oregon to Mexico.

The closure is necessary to replace the second half of the Mulholland Bridge as part of the northbound I-405 carpool lane construction project between the Santa Monica Freeway (I-10) and the Ventura Freeway (U.S. 101).  When completed, this project will create a continuous carpool lane in both directions of I-405 in Los Angeles County.

Northbound I-405 will be closed from the Santa Monica Freeway (I-10) to the Ventura Freeway (U.S. 101). Southbound I-405 will be closed from U.S. 101 to Getty Center Drive.

Caltrans District 7 Director Mike Miles cautioned that the nightmare traffic scenario predicted for last year could still happen if motorists ignore warnings and drive as usual. Like other transportation officials, he advises eating, playing and shopping locally and avoiding discretionary driving. "The best way to have a carefree weekend is to be car-free," he said. 

For more information and the latest updates on the I-405 Sepulveda Pass Improvements Project, visit or follow the project on twitter: and Facebook at