Caltrans crews will close all lanes of southbound state Route 125 for the weekend beginning at 9 p.m. Friday.
The work, set to continue through 4 a.m. Monday, is to replace concrete slabs on a stretch of SR-125 near Jamacha Road.
Motorists south of state Route 94 will exit using the Jamacha Road offramp.
Motorists traveling southbound on SR-125 before SR-94 will be detoured to westbound SR-94 to avoid the closure.
Westbound SR-94 traffic can connect to SR-125 via Interstate 805 south to state Route 54 east to SR-125 north.
Check online for real-time traffic information including traffic speed, lane and road closures due to construction and maintenance activities.