State Route 142 is now closed from Old Carbon Canyon Rd to Chino Hills Pkwy due to gas-line damage for an unknown duration. Caltrans construction staff are working in conjunction with SoCal Gas and emergency responders to mitigate the gas leak. Motorists are advised to use alternate routes such as SR-91, SR-60, or I-10 to avoid the closure. Visit caltrans8.info for updates.