Skip to content Skip to left sidebar Skip to right sidebar Skip to footer

M3 Junction 6 Black Dam Improvement – final phase of works

Highways England


Highways England

As we are approaching the final phase of the Black Dam Improvement scheme, I am writing to advise you of planned overnight closures to resurface sections of

the roundabout and approach roads.  These works will be carried out between 10pm and 5am as follows:



Closure Locations

Monday 11 January


Saturday 16 January

A30 Ringway South eastbound

A339 north and southbound

A30 London Road eastbound

Northern section of Black Dam Roundabout

Sunday 17 January

A30 London Road east and westbound

Monday 18 January


Wednesday 20 January

A339 northbound

Thursday 21 January


Friday 22 January

A339 southbound

Saturday 23 January


Tuesday 26 January

A30 London Road westbound

A30 Ringway South westbound

M3 Spur north and southbound

Southern section of Black Dam Roundabout

Signed diversion routes will be in place at these times.

These resurfacing works are expected to generate noise.  We will take measures to reduce this as much as possible but apologise for any disturbance caused.

In addition to the above, the Black Dam junction will be fully closed from 10pm on Friday 5 February to 5am on Monday 8 February.  This will allow final work to the new carriageway to be carried out in advance of the full opening of the junction on the Monday morning.  We will write to you again nearer the time to confirm details and diversion routes.

Additional tasks including landscaping will be completed using off-peak daytime lane closures and are expected to take three weeks.  This will be followed by the seeding of the newly-landscaped areas which is planned for March, when temperatures will have risen to allow germination.

Details of this project are available on the Highways England website:  Please subscribe to the scheme to receive email alerts when the information is updated.

For further information on other planned improvements taking place in Basingstoke, visit: and

I would like to apologise in advance for any disturbance or inconvenience caused by the works and would emphasise that our contractors work to strict procedures to ensure minimal noise at night. 


There are no comments yet

Leave a comment

Your email address will not be published. Required fields are marked *