Caltrans will close lanes on SR-142 (Chino Hills Pkwy) from SR-71 to Carbon Canyon Rd at the County line in Sleepy Hollow. Closures will take place September 16 to September 22 from 8:00 p.m. to 7:00 a.m. One-way traffic control with flagging will be in effect in various locations along the route. Limited access to intersections along the path of construction may be expected during the paving process. Please expect delays during construction hours. Be advised, weather conditions may affect this operation. For the latest traffic conditions, visit Caltrans website at dot.ca.gov.