A four-mile $9.5-million paving project in western Nassau County begins Monday and will close a stretch of the Long Island Expressway during the overnight hours, the state Department of Transportation said.

The project is designed to resurface more than four miles of the LIE between the Nassau-Queens line and Willis Avenue, Exit 37, in Roslyn Heights, the department said in a news release.

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Crews will remove the worn top layer from all eastbound and westbound LIE main line travel lanes, make needed base repairs and then resurfaced the roadway with new asphalt overlay, the release said.

Construction is being done in stages on shorter sections of roadway between 10 p.m. and 5 a.m. to minimize the impact on motorists. At least one direction of the LIE will be open at all times, the release said.

Resurfacing starts on westbound lanes, Monday through Friday, weather permitting, and will continue through the end of June, the release said. Starting in July, eastbound resurfacing will run Sunday through Thursday, weather permitting, and will continue through the fall.

The project includes new pavement markings, audible roadway delineations to help prevent off-road drifting and replacement of vehicle detectors and traffic loops to help alert the public about current LIE traveling conditions via the state DOT's INFORM transportation management center, according to the department's release.