SB nightly full freeway closures are set for 10 p.m. to 5:30 a.m.: Monday, Jan. 18 through Friday, Jan. 22 Monday, Jan. 25 * Tuesday, Jan. 26* *Only one direction is planned to be closed. If SB work has not been completed, it will be closed. Otherwise, northbound (NB) will be closed. Sign up for project-wide and bridge-specific construction alerts at bit.ly/405-signup. NEW! Northbound (NB) and Southbound (SB) I-405 Freeway Lane Reductions for Pile Installation Crews will close the inside lanes on the SB and NB I-405 between Beach Boulevard and Newland Street for approximately one month to advance pile installation activities for the Edinger Avenue bridge.