The UK’s Department for Transport (DfT) has granted a Development Consent Order (DCO) for building a new twin-bore road tunnel beneath the Thames River in East London.

A DCO was issued by the government to approve any development that is designated as a Nationally Significant Infrastructure Project (NSIP).

The approval to build the Silvertown Tunnel was granted to Transport for London (TfL).

Expected to open in 2023, the tunnel will reduce congestion at Blackwall Tunnel, as well as enhance resilience of the road network in East London.

The Mayor of London Sadiq Khan said: “New river crossings are vital for the future prosperity of East London, and the scheme will have a substantial impact unlocking new jobs and economic growth, while easing congestion and poor air quality in the area.”

“The scheme will have a substantial impact unlocking new jobs and economic growth, while easing congestion and poor air quality in the area.”

The new tunnel will charge tolls and facilitate cross-river public transport connections.

It was also decided that buses that meet the highest mission standards will be allowed to use the Silvertown Tunnel.

TfL is currently working with the local boroughs, landowners and stakeholders to devise subsequent steps of the project, including land acquisitions, construction logistics and access requirements for residents and businesses.

The tunnel will be privately financed under a design, build, finance and maintain contract.

TfL will soon launch the procurement process to select the contractor who will design and build the tunnel.

It expects to confirm a preferred bidder by the end of this year and award the contract in early 2019. The construction is expected to commence late next year.