The Department for Transport has released a document stating that there could be a toll fee of £4 for cars using the Blackwall Tunnel in 2025.

Despite this, TfL insisted no decision had been made - and said the figures were simply “placeholders” used to illustrate the design layout of the signs, according to the Evening Standard.

Transport for London (TfL) is now working to install road signs that will inform drivers of the upcoming toll requirement for using the Blackwall tunnels in two years’ time.

Currently, the Blackwall Tunnels, which carry traffic beneath the Thames through two two-lane tunnels (one northbound and one southbound), are toll-free.

However, this will change when the Silvertown tunnel, also subject to tolls, opens in two years.

Both tunnels will be tolled to prevent traffic from diverting between them.

According to documents published on the Department for Transport website on September 20, 2023, the tolls will be in effect from 6 am to 10 pm.

Motorcyclists will pay up to £3, car drivers up to £4, and other vehicles up to £8.50.

Drivers will be charged for each crossing, not for a round trip.

Confirmation of the toll amount is not expected until much closer to the Silvertown opening date.

However, the charges are broadly in line with the Dart Charge levied on drivers to use the Dartford crossings.

Car drivers pay £2.50 and larger vehicles £6.

Mr Khan has previously suggested that residents of Newham and Greenwich will receive a discount, according to the Evening Standard.

A TfL spokesperson said: “In order to obtain necessary approvals for the new road signage required for the Silvertown tunnel, a submission for the potential signs has been made to the Department for Transport.

“No charges have been finalised yet and any times and costs within the submission are indicative to allow for approval to be obtained.

“The final charges will be made ahead of the Silvertown tunnel opening in 2025 once further modelling, including assessments on concessions, are completed.”