M25

At 117 miles, the M25 or Lon­don Orbital Motor­way is the sec­ond longest city bypass in Europe. 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

On the M25 clockwise between junctions J26 and J27, minor delays can be expected at peak times due to roadworks closing three lanes, between 10 pm and 5:30 am, from 23 March 2015 to 5 April 2015.

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The M25 clockwise exit slip at junction J29 will be closed , due to roadworks, between 10 pm and 6 am, from 23 March 2015 to 28 March 2015.

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On the M25 anti-clockwise between junctions J13 and J12, there are currently delays of 10 mins due to roadworks . Expect disruption until 11:59 pm on 23 December 2016.

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On the M25 anti-clockwise between junctions J13 and J12, expect delays of up to 10 mins at peak times due to roadworks , from 12:01 am on 22 October 2014 to 11:59 pm on 23 December 2016.

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On the M25 clockwise between junctions J24 and J28, there are currently delays of 10 mins due to roadworks . Expect disruption until 12:00 am on 30 April 2015.

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M25 Road Projects

M25 Junction 20 Gade Valley Viaduct Expansion Joint Works

Work is required to replace the Gade Val­ley viaduct expan­sion joints which have reached the end of their ser­vice­able life

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M25 Junctions 23 to 27 Resurfacing

We are resur­fac­ing the sec­ond and third lanes on both car­riage­ways between junc­tions 23 and 24 and between junc­tions 25 and 27.

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M25 Junction 5 - 6 Resurfacing

Resur­fac­ing of the 2nd and 3rd lanes of the M25, clock­wise and anti-clockwise between junc­tions 5 and 7.

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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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