Partners sought to build £1.9 billion Lower Thames Crossing roads

Published

30 Mar 2021

The tender process is for two roads contracts, Kent roads and roads North of the Thames

Today (31 March 2021) we're inviting tenders on two roads contracts worth a combined £1.9 billion to build routes north and south of the River Thames on the proposed Lower Thames Crossing, the most ambitious roads project for a generation.

For more than 65 years the Dartford Crossing has stood as the only crossing between Kent and Essex, a critical link carrying vital food, goods and services between the manufacturing centres, ports, and distribution hubs of the South East, Midlands and North of England. It is designed for 135,000 vehicles a day, but it now often sees 180,000 a day use it, leading to long delays which businesses across the country say act as a barrier to trade and jobs.

The successful bidders and their supply chain will help Highways England achieve their ambition of making the Lower Thames Crossing the most environmentally sustainable road project ever delivered in the UK. They will support delivery of landscaping that will increase the biodiversity value of the area by 15% by planting over 260 hectares of new woodland, converting 400 hectares of arable land into semi-natural habitats, and creating new ponds, waterways, ditches and hedgerows. They will also be responsible for seven new green bridges that connect habitats and species either side of the new road.

"Our challenge is to build the new crossing in a way that not only supports the next generation of low carbon vehicles, but minimises our footprint, and allows us to enhance the natural environment and leave a positive legacy for our neighbours and users."

Matt Palmer, Lower Thames Crossing Executive Director

The Lower Thames Crossing will improve journeys by almost doubling road capacity across the River Thames east of London. The two successful bidders will build a total of 14.3 miles of new roads that will connect the longest road tunnel in the UK to the strategic road network. If given the green light this reliable new route will help to unlock a wealth of long-term economic benefits, as well as play an important role in the country’s economic recovery by supporting 10,000 jobs in the peak year of construction, including hundreds of opportunities for apprentices, graduates, and local businesses.

The £600 million Kent Roads contract, which is a two-stage design and build contract for the part of the route from the A2/M2 corridor to 1km south of the southern tunnel entrance, with strategic utilities and environmental interfaces.

It comprises:

6km of new road
A multi-level junction to connect the A2 to the Lower Thames Crossing
New and upgraded structures, embankments, cuttings and retaining walls
Green bridges will be provided at Thong Lane over Lower Thames Crossing and over the A2 at Brewers Road and Thong Lane, to combine green spaces with walking, cycling and vehicle access and provide better connectivity for the landscape, ecology and habitats. Brewers Road will also cater for horse riders.
Green bridges over the A2 at Brewers Road and Thong Lane for vehicles, walkers, cyclists, and horse riders (Brewers Road only)
The diversion of utilities including strategic gas mains, electricity cables, water, and telecoms
Ecological works for species protection and habitat enhancement along the route
Archaeology carefully and sensitively excavated and recorded

The £1.3 billion Roads North of the Thames contract, is also a two-stage design and build contract delivering the route from 1km north of the northern tunnel entrance to Junction 29 of the M25. New link roads are required to connect the route with the M25, A13 and A1089.

It comprises of:

16km of new road
Over 30 proposed new and/or upgraded structures, embankments, cuttings and retaining walls, under bridges to take the route through the A13 and to join the M25
Viaducts at Tilbury over Cole’s Reservoirs and at Mardyke across flood plain
Connecting the new road to the M25 at Junction 29
The diversion of utilities including gas mains and electric cables and towers
Ecological works for species protection and habitat enhancement along the route
Archaeology carefully and sensitively excavated and recorded

Matt Palmer, Lower Thames Crossing Executive Director, said: “Our roads connect us – we rely on them, and they are a critical part of our economic recovery and low-carbon future. The Lower Thames Crossing is the most ambitious road project this country has seen since the M25 was completed 35 years ago. These contracts show our commitment to this project, which will support 22,000 jobs during its construction and provide a huge economic boost to the UK economy when it opens for traffic.

“Our challenge is to build the new crossing in a way that not only supports the next generation of low carbon vehicles, but minimises our footprint, and allows us to enhance the natural environment and leave a positive legacy for our neighbours and users.”

Highways England is building on its track record of successfully delivering major projects by bringing in partners and expertise from across the infrastructure industry. The two roads contracts are the final of three main works contracts to be procured for the scheme, with the £2 billion Tunnels and Approaches contract currently out for tender and the £162.5 million Integration Partner contract awarded to Jacobs earlier in the year.

Highways England plans to resubmit its application for a Development Consent Order later this year. An application was originally submitted to the Planning Inspectorate in October 2020 but was withdrawn in order to provide more information.

For further information contact us at info@lowerthamescrossing.co.uk or by calling 0300 123 5000. You can also get the latest updates on Facebook, Twitter and LinkedIn.