Caltrans crews were expected to conduct a weekend closure of all lanes of southbound state Route 125 starting Friday night.
The closure will start at 9 p.m. Friday until 4 a.m. Monday for a concrete slab replacement.
Drivers will be detoured.
Southbound SR-125 motorists south of state Route 94 will exit using the Jamacha Road off-ramp and reenter the freeway using the on-ramp, a statement from the state Department of Transportation said.
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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.
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The maintenance work schedule is subject to change due to weather, traffic incidents, or other maintenance considerations, the Caltrans statement read.
