Busy I-8 ramp in Mission Valley will close overnight

SAN DIEGO — The transition ramp from northbound state Route 163 to eastbound Interstate 8 in Mission Valley will be closed overnight for road work.

Crews are scheduled to work on safety upgrades, including applying a high-friction surface treatment, adding reflective signs and improving drainage outlets between 11 p.m. Friday and 9 a.m. Saturday, according to Caltrans.

During the closure, northbound motorists will be detoured onto the westbound Friars Road loop off-ramp, then will take southbound SR-163 to eastbound I-8, according to the state transit agency.