The eastbound Highway 180 connector ramp to southbound Highway 41 will close for a month beginning May 28, the California Department of Transportation said.
Caltrans said the closure will allow teams to widen the ramp, install overhead electronic signs and install a new ramp metering system.
Signs will be posted on Highway 180 to advise motorists of the closure.
Construction schedules are liable to change due to weather or unforeseen circumstances.
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