Lower Thames Crossing

Scheme outline

A new crossing of the Thames Estuary, east of London, to increase cross-river capacity for road traffic, relieve congestion on the Dartford Crossing, and improve the reliability of journeys.

This scheme was first announced in 2009.

The current proposal, as of January 2016 is to build a new dual-carriageway road between the M2 in Kent (with a connection around junction 1) and the M25 in Essex (between J29-30). A range of options for the route of road links between the tunnel and the existing road network are being considered. The location for the tunnel itself has now been chosen, and it would cross the river just to the east of Gravesend and Tilbury. Highways England's preferred option is for a twin-bore tunnel.

In preparation
New road
under motorway restrictions
Highway authority


What's happening on this scheme? You can add a progress update if you know more. Add a progress update
26 January 2016

A public consultation on the proposals will run from 26 January 2016 until 24 March 2016.

26 April 2017

On 12 April the Government published their preferred route for the Lower Thames Crossing, with a new road joining the M25 between junctions 29 and 30 with the A2 east of Gravesend. More details can be found in the press release.

10 October 2018

Highways England have launched a new ten-week public consultation, which indicates that the new road will now be a motorway, not an A-road expressway as previously suggested.

2 July 2019

Highways England have announced the start of ground investigations along the route.

More information


With thanks to Phil Deer and Michael Pritchard for information on this page.