Updated
Recap: Two crashes disrupting M1 and M25 drivers near St Albans
Delays on the M25 near junction 21 (M1, St Albans) - Credit: National Highways
Two crashes caused severe midday disruption to motorists near St Albans and Watford.
A crash blocked the M1 southbound exit at junction 6 for the A406 (Watford and St Albans) today (May 20).
The M1 "incident" and road traffic collision blocked the entire exit slip-road.
The road reopened at around 3pm.
There was also a crash on the M25 clockwise between junction 16 (M40, Uxbridge), and junction 17 (A412, Maple Cross), approaching Watford.
The M25 crash blocked three out of four lanes.
It has since cleared.
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Tailbacks began at the M3 near Chertsey in Surrey, and stretched past Heathrow Airports to the M40.
An earlier queue began at junction 22 (A1081, St Albans) and ran anti-clockwise to the M40 at Uxbridge.
For the most up-to-date information about the county's roads, visit our LIVE Hertfordshire traffic map.
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