Since it's considered not only the busiest freeway intersection in the city, but the country, here's a little heads up for tomorrow morning: "The California Department of Transportation (Caltrans) will close the northbound San Diego Freeway (I-405) connector to the east- and westbound Ventura Freeway (U.S. 101) Sunday, October 5 from 6 a.m. to 11 a.m. for maintenance work. The northbound I-405 Sepulveda Boulevard on- and off-ramps will also be closed."