M25

At 117 miles, the M25 or Lon­don Orbital Motor­way is the longest city bypass in the world. Its radius varies from 13 to 22 miles from Char­ing Cross. Most Lon­don roads are man­aged by Trans­port for Lon­don but as part of England’s strate­gic road net­work, the M25 is man­aged by the High­ways Agency.

A Royal Com­mis­sion first sug­gested a ring road for Lon­don in 1905 but only parts of the planned road were cre­ated at that time. By the 1970s, the huge growth of motor traf­fic had led to firm Gov­ern­ment plans for what became the M25. The last 13 miles from Mick­le­field to South Mimms opened ahead of sched­ule in Octo­ber 1986 by then Prime Min­is­ter Mar­garet Thatcher.

M25 Traffic Information

The M25 clockwise entry slip at junction J10 will be closed , due to roadworks, between 10 pm and 5 am, from 24 April 2014 to 26 April 2014.

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The M25 clockwise entry slip at junction J27 From M11 South will be closed , due to roadworks, from 10 pm on 30 April 2014 to 5 am on 1 May 2014.

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On the M25 anti-clockwise between junctions J29 and J28, expect delays of up to 15 mins at peak times due to roadworks closing three lanes, between 10 pm and 5 am, from 1 May 2014 to 3 May 2014.

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The M25 clockwise entry slip at junction J7 from the M23 north will be closed , due to roadworks, from 10 pm on 24 April 2014 to 5 am on 25 April 2014.

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The M25 anti-clockwise entry slip at junction J20 will be closed , due to roadworks, between 10 pm and 5 am, from 24 April 2014 to 26 April 2014.

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M25 Road Projects

M25 Junction 30 Interim Scheme

Improve­ments are being made to the slip roads and traf­fic sig­nals at Junc­tion 30 of the M25 in Essex.

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M25 Junctions 27-30 Widening

We have widened the M25 between junc­tions 27–30.

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M25 Junctions 16-23 Widening

We have com­pleted work to widen the M25 from three to four lanes between junc­tions 16 and 23.

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M25 Junctions 5-7

We pro­pose to improve the M25 by mak­ing it a “smart motor­way” (pre­vi­ously known as man­aged motor­ways) between junc­tions 5 and 7

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M25 Junctions 23-27

We are improv­ing the M25 by mak­ing it a “smart motor­way” (pre­vi­ously known as man­aged motor­ways) between junc­tions 23 and 37.

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