The closure will take place from 8 p.m. Friday, May 14 through 5 a.m. Monday, May 17.

I-5 southbound off-ramps and on-ramps will be closed during this period, while the northbound on-ramp from westbound Oso Parkway will remain open. Eastbound Oso Parkway will not be impacted.

The closure is necessary to complete construction improvements to the bridges over the freeway and railroad. The work is part of the $14-million improvement project under construction by Caltrans and the Orange County Transportation Authority (OCTA) to improve the I-5/Oso Parkway interchange.