An overnight rollover wreck led to a ramp closure along the Palmetto Expressway in Miami Lakes. Florida Highway Patrol units responded to the scene of the crash along the northbound lanes near Northwest 154th Street, just before 4:30 a.m. on Friday. Investigators said the dump truck was travel ing north when the driver lost control and hit the guardrail. Troopers said the impact caused the vehicle to overturn and spill sand onto the roadway. As of 8:30 a.m., the northbound ramp from Northwest 154th Street remained closed to traffic. Officials urge drivers to avoid the area and seek alternate routes. Please check back on WSVN.com and 7News for more details on this developing story. ...read more read less