Edition No: 63 During the holiday period and the increase passenger numbers at Gatwick Airport there are no planned full closures on the M23 during August 2019.Please find below the confirmed closure dates for the first few weeks of September 2019. We will be updating these regularly for your attention.In the event of poor weather conditions or issues out of our control, planned work maybe postponed at short notice. Signagewill be in placeon the network to notify of closures and diversions.