From Highways England:
We will carry out this work from Friday 5 March 2021 to Thursday 18 March 2021, Monday to Friday working only. To minimise disruption to our customers, we’ll work overnight from 9pm to 6am when there are fewer vehicles on the road.
For the safety of our workforce and customers, the M3 northbound will be closed between junctions 6-5 including the northbound on slip at junction 6 during the above dates and times.
During the closure, we’ll put a diversion route in place via, A30 London Road and A278. Access for Emergency Vehicles will be maintained throughout the closure.
Please note that these works are subject to change due to weather conditions or unforeseen circumstances. We’ll advertise the closures on yellow signs placed in advance at the junction/alongside the road.
I would like to apologise in advance for any inconvenience or disruption you may experience during this work.
If you have any questions, or if you would like to know about our work, please contact us on 0300 123 5000 or email firstname.lastname@example.org. Or you can visit our website at https://highwaysengland.co.uk/travel-updates/daily-closure-report/ where you can find a weekly report of all full closures across the network.