Nighttime closures this week are scheduled Tuesday, December 4 through Saturday, December 8.
Construction activity this week will include installation of temporary bridge supports and minor demolition activity on the Seal Beach Boulevard bridge, minor demolition activity on the eastbound SR-22 connector to the northbound I-405 freeway, falsework installation on the southbound I-405 connector to the eastbound SR-22 freeway and minor earthwork, electrical work and paving activity.