Carmageddon: I-405 shut down, Los Angeles (July 2011)
Caltrans closed a 10-mile stretch of the I-405 through the Sepulveda Pass for 53 hours to demolish part of the Mulholland Bridge. Officials warned of gridlock on the region's busiest highway; drivers heeded the warning and largely stayed home.
Traffic during the closure was far lighter than feared, and the project finished ahead of schedule.
It became a model for how cities can pull off major closures on aging highway infrastructure.
Shows how a planned closure on busy freeway infrastructure can disrupt commuters — and how agencies manage that disruption with advance notice and routing advice, the same playbook MDOT is using.
