Crews will close the NB I-405 on-ramp from South Coast Dr./ Hyland Ave. for approximately two months to accommodate the freeway widening.
Activities include demolition, excavation, grading, drainage and electrical system installation, concrete pours and asphalt paving.
The ramp is set to close as early as 10 p.m., Monday, Jan. 11.
Sign up for project-wide and bridge-specific construction alerts at
bit.ly/405-signup.