The California Department of Transportation (Caltrans) will close all eastbound lanes on Oso Parkway at the I-5 Freeway starting at 8 p.m. tonight through 5 a.m. Monday, May 23. In addition, the I-5 Freeway southbound off-ramp and on-ramps at Oso Parkway will be closed. Westbound Oso Parkway and the I-5 northbound on-ramp from westbound Oso Parkway will remain open.

Detours and signs will be placed to alert motorists of the closure, which is part of the ongoing $14.3-million Oso Parkway Interchange project.

The project, which began in September of 2008, is expected to be finished by June, according to Caltrans.