The closures are part of a three-year improvement project for one of the UK's busiest and most dangerous motorway junctions, which is set to conclude this summer. Here is what you need to know about ...
Watford Observer on MSN
Multiple closures at M25 and M1 Hertfordshire junction - starting tonight
Multiple overnight closures around the Hertfordshire M1 and M25 junction near Watford are planned soon.
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