The southbound State Route 163 connector ramp to the eastbound Interstate 8 will be closed Saturday morning for repairs, according to Caltrans.
The closure starts at 3 a.m. and ends at 8 a.m., during repairs will be made to a recently damaged guardrail.
Signs will be posted in advance to alert drivers.
Drivers are asked to be alert and slow down in such construction zones, Caltrans said.