The UK government has granted planning permission for National Highways’ Lower Thames Crossing project, an infrastructure initiative aimed at reducing congestion and enhancing connectivity in Dartford.
The project includes the construction of a new 14-mile A road linking the A2 in Kent with the A13 and M25 motorway in Essex.
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For over six decades, the Dartford Crossing has been the sole road crossing over the Thames east of London, serving as a vital trade route. However, it is overwhelmed with traffic, leading to delays and economic setbacks.
The new road is designed to alleviate these issues by nearly doubling the road capacity in the area.
The government is considering private finance options for the project, with construction potentially starting in 2026 and completion expected in the early 2030s.
By utilising hydrogen fuel for its construction fleet and low-carbon concrete and steel, the project aims to cut its construction carbon footprint by approximately 50%, with a goal of reaching a 70% reduction.
The project also includes the restoration of natural habitats, with six times more green space than the road itself.
Feedback from the local community and organisations has shaped the design of the new road, leading to enhancements such as a three-lane dual carriageway and an extended tunnel to minimise environmental impact.
Approximately 80% of the route will be concealed by tunnels, cuttings, or embankments, and seven green bridges will integrate the road into the landscape while offering safer crossing points for both people and wildlife.
The development’s construction phase is set to bolster the British economy by creating jobs and developing skills.
Almost half of the workforce will be hired locally, receiving training that will benefit future domestic infrastructure projects.
National Highways Lower Thames Crossing executive director Matt Palmer said: “The Lower Thames Crossing is one of the UK’s most important infrastructure projects. It will unlock growth with quicker, safer, and more reliable journeys and redraw the blueprint for building major projects in a net-zero future by scaling up the use [of] low-carbon construction, and leaving a legacy of green spaces, green skills.
“Our plans have been shaped by the local community and refined by robust and rigorous examination from independent experts. We are shovel-ready and have our delivery partners on board, and today’s decision allows us to work with the government on funding and start the detailed planning that will let us start construction as soon as possible.”
In related news, National Highways announced a £9m ($11.6m) refurbishment project for the M6 bridge over the River Lowther in Cumbria, England, set to commence on 31 March 2025.
