You've been hearing about it for months, and now it's finally here: The 405 freeway will shut down tonight starting at 7 p.m. between the 101 and the 10.

This year's 53-hour freeway shutdown requires 30% more work to be completed than last year's Carmageddon. If all goes according to plan, the 405 should reopen by 5 a.m. on Monday morning. Everyone can help the Mulholland Bridge demolition go as smoothly as possible by keeping cars off the road and being safe (the California Highway Patrol says there will be zero tolerance for pranksters).

According to Curbed LA, County Supervisor Zev Yaroslavsky said, "If we have the public's cooperation again, this weekend should be a repeat of last summer. However, if motorists are complacent and revert to normal car usage, we could easily have the traffic nightmare we have all been trying to avoid."

Make sure to check your local news reports and traffic updates before you head out on the road Monday morning. You can get live updates at Metro's website or via Twitter.

Plan ahead, avoid the area, or eat, shop and play locally.