Drivers are likely to face travel chaos over the weekend as parts of the the M25 – the UK’s busiest motorway – will be closed for two days.

National Highways England said in a statement: “The M25 clockwise exit slip at junction 28 will be closed for two weekends from 11pm Friday 8 November to 5am Monday 11 November and again at 11pm Friday 15 November to 5am Monday 18 November,

“The closures will be the next in a series of weekend closures needed, with more dates to be announced, to build the base for a new overhead gantry that will span the width of the M25.

“Over the next two weekends, we will be pouring the concrete foundations needed to support the gantry.”

Here’s a list of all the closures from Friday, November 8 to Sunday, November 10:

Closures for Friday, November 8

A12

On the A12 northbound there will be a carriageway closure between Junction 12 and Junction 15 for horticulture works from 9pm until 5am.

Meanwhile, on the A12 southbound there will be an exit slip road closure at Junction 20B for electrical works from 9pm until 5am.

Dartford Crossing

From Junction 1A of the A282 (anti-clockwise) to Junction 31 of the M25 (anti-clockwise) there will be a closure for grillage works from 10pm to 5.30am.

Additionally, an entry slip road at Junction 1A of the A282 (anti-clockwise) will be closed from 11pm until 6am, also for grillage works.

M25

On the M25 clockwise there will be several exit slip road closures taking place on Friday evening:

Junction 24 (8pm to 6am for scheme works)

Junction 25 (11pm to 6am for CCTV camera installation)

Junction 27 (11pm to 6am for surfacing work)

Junction 28 (11pm to 5am)

Closures for Saturday, November 9

A12

There are no closures scheduled for the A12 on this day.

The West tunnel on the northbound way of the Dartford Crossing will be closed from 10pm to 5am for maintenance works.

Additionally, the East tunnel on the northbound way will be shut from 10pm until 5.30am for joint replacement works.

M25

On the M25 clockwise there will be an exit slip road closure at Junction 28 from 11pm to 5am.

Closures for Sunday, November 10

A12

There are no closures scheduled for the A12 on this day.

Dartford Crossing

The East tunnel on the northbound way of the Dartford Crossing will be closed from 10pm to 5am for maintenance works.

M25

On the M25 clockwise there will be an exit slip road closure at Junction 28 from 11pm to 5am.

More information on road closures can be found on the National Highways website.