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The Project Control Framework
This framework sets out how we, together with the Department for Transport, manage and deliver major road improvement projects.
M25 Junction 1b - 3
M25 Junction 1b - 3
- Status
- Completed
- Located in
- Area 5
- Scheme type
- Programme of Major Schemes
The Project
This scheme forms a part of the Highways Agency's existing strategic roads programme. The M25 is one of the busiest routes in England, the upgrades to this part of the motorway are vital in tackling congestion and improving the journey time and reliability to the road user.
In July 2003 the Highways Agency were asked to develop a phased programme for widening the remaining 3 lane sections of the M25 to dual 4 lanes over the next decade.
This section of the M25 includes motorway connections from the Dartford Crossing and the M20.
The Highways Agency announced in April 2004 that it would develop proposals for widening the M25 between Junctions 1b and 3.
The proposals included:
- Widening the M25 to 4 lanes between the south facing slip roads of Junction 2 and the north facing (M20) slip roads of Junction 3.
- Widening the southbound M25 to 3 lanes from Junction 1B to south of Junction 2.
- No land take from outside the current limits of the M25.
- Low noise road surfacing and/or noise fencing to shield properties and to reduce traffic noise.
- Improved drainage pollution measures to trap spillage from the highway and prevent contamination of water courses.
Start of Works
Work began on widening junctions 1b to 3 of the M25 on 11th June 2007 and was completed on 22nd July 2008.
One Year After Opening study
As part of our ongoing programme of Post Opening Project Evaluation (POPE) this scheme has been reviewed at one year after opening. The study compares the outturn effects of this scheme to the predicted impacts. A summary of the five year after report is available to download here: A2/A282 Dartford Improvement and M25 J1b-3 widening Summary Report (PDF 82KB)
A full version of the report is available to download here:
A2 / A282 Dartford Improvement
To find out more about the related A2/A282 Dartford Improvement scheme please visit the scheme website.
