A notice from Highways England in this week’s edition of the Watford Observer outlines plans, in alternate phases, to close both carriageways of the M25 between Junction 19 (A41) and Junction 21A (A405) and all slip reads leading to and from the length of carriageway for repairs and maintenance to the viaduct. The order is due to come into force on February 15 until the works are completed and during this time reduced speed limits will be in place for those parts of the carriageway that remain open. Starting at 9pm every night, the closures are due to last until 5.30am from Monday to Thursdays, 6am on Fridays, 9am on Saturdays and 5.30am on Sundays.