Upcoming road closures are set to affect the M1 near St Albans and Hemel Hempstead.

Upgrade work will affect the motorway on various dates from today (Friday, January 12) until Saturday, February 3.

The road's northbound carriageway has already been shut for two nights this week, between junctions 9 and 11a.

The same stretch will continue to be closed between 10pm and 5am tonight (Friday, January 12) and tomorrow night (Saturday, January 13).

For four nights from Tuesday (January 16), the northbound carriageway will be closed between junctions 11a and 14, while the same stretch will be closed southbound for four nights from Saturday, January 20.

From Wednesday, January 24, the southbound carriageway will be closed for four nights between junctions 11a and 9.

Lastly, the northbound carriageway will be shut for five nights from Monday, January 29, between junctions 11a and 14.

All disruption will take place between 10pm and 5am, though drivers are advised that "this can change slightly depending on the volume of traffic".

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A spokesperson for National Highways said: "Safety is our top priority.

"Upgrading these barriers will improve journeys and significantly reduce the risk of vehicles crossing over from one carriageway to another, improving safety and reducing the duration of incident-related congestion.

"As well as  the barrier upgrade, CCTV along the motorway will be upgraded and improved signage for each of the section’s 30 emergency areas will be installed."