M1 motorway closure: junctions shut, diversion route, reason for closure

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A federal highway is currently closed due to a collision.

The M1 is closed southbound in Hertfordshire this morning (6 August), National Highways said.

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A detour route has been set up, it said.

Here’s everything you need to know:

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Where is the M1 closed and which junctions are affected?

The M1 in Hertfordshire is closed southbound between J6 (St Albans) and J5 (Watford).

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Why is the M1 closed?

It is closed due to a collision, Highways England said.

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What did National Highways say?

National Highways – East tweeted: “The #M1 is closed southbound between J6 #st Albans and J5 #Watford due to a collision. Further information follows. ”

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She warns that the accident involved an “overturned” vehicle.

The disruption is expected to last until after 9 a.m.

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M1 Motorway. (Photo by Clive Mason/Getty Images)

Is there a detour route?

National Highways has announced that there is a detour route.

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It reads as follows: Road users are asked to follow the hollow circle diversion symbol on traffic signs

  • Exit the M1 southbound at J6
  • At the end of the ‘Waterdale’ exit turn left onto the A405/St Albans Road/Kingsway North Orbital Road
  • At Leavesdon/A41 Interchange roundabout, take the 1st exit onto the A41 ‘N. Western Avenue”.
  • At the Dome roundabout, take the 2nd exit and continue on the A41 ‘Colne Way’/N. Western Avenue”.
  • At the Berrygrove roundabout, take the 2nd exit onto the M1 J5 Southbound.

How bad is the traffic?

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AA Traffic warns: “Seven minute delays and increasing delays on the M1 Northbound between J6A M25 J21 and J5 A41 Colne Way (Watford). Average speed ten miles an hour.”

When did the M1 open and how long will it take?

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The M1 motorway connects London to Leeds where it joins the A1(M) near Aberford to go to Newcastle. It was the first interurban motorway to be completed in Britain.

The country’s first motorway was the Preston Bypass, which later became part of the M6.

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Most of the M1 opened between 1959 and 1968. The south end was lengthened in 1977 and the north end in 1999.

It is 193 miles (311 km) long.

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The M1 was built in four phases.

Plans for a network of motorways across the UK existed before the Second World War.

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In 1923 Lord Montagu set up a company to build a “motorway-like road” from London to Birmingham.

However, it was not until 26 years later that the Special Roads Act 1949 was passed.

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This law allowed the construction of roads restricted to certain vehicle classifications, and in the 1950s the country’s first freeways were given the go-ahead by the government.

In the early days, the M1 had no speed bumps, crash barriers or lighting and was soft shouldered rather than hard.

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The first section of the M1 to open was between Junction 5 for Watford and Junction 18 for Crick/Rugby.

It opened on November 2, 1959.

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Currently, the M1 connects:

  • London
  • Brent cross
  • Watford
  • St Albans
  • Hemel Hempstead
  • Luton
  • Milton Keynes
  • Northampton
  • rugby
  • leicester
  • Loughborough
  • nottingham
  • derbies
  • Mansfeld
  • Chesterfield
  • Sheffield
  • Rotherham
  • barnsley
  • Wakefield
  • leeds

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