When exactly is the M3 closed near Basingstoke?
The closure runs from 9:00 PM BST on Friday, April 4th, 2025, until 6:00 AM BST on Monday, April 7th, 2025.
Transport / Road Closures
Motorists in Hampshire are advised to plan ahead for significant disruption this weekend due to a full closure of the M3 motorway near Basingstoke. National Highways is carrying out essential improvement works between Junction 6 (Black Dam)...
National Highways is undertaking significant electrical work on the M3 motorway near Basingstoke this weekend. The primary goal is to install advanced signage technology on the southbound carriageway between the Black Dam (J6) and Dummer (J7) interchanges. This new system aims to provide drivers with timely warnings about traffic conditions, accidents, or planned works ahead, potentially improving safety and traffic flow in the future.
The closure is scheduled during a potentially busy period, coinciding with the start of the Easter school holidays for many and favourable weather forecasts, which could increase traffic volumes on diversion routes. Drivers should anticipate significant delays and plan their journeys accordingly.
The designated diversion route navigates local roads (A30 Ringway South and A30 Winchester Road) via the M3 Junction 6 Spur Road. It's crucial to follow the signed diversion to avoid getting lost and minimize disruption to local traffic. Checking live traffic updates before and during travel is highly recommended.
The closure runs from 9:00 PM BST on Friday, April 4th, 2025, until 6:00 AM BST on Monday, April 7th, 2025.
The M3 is fully closed in both directions between Junction 6 (Black Dam interchange) and Junction 7 (Dummer interchange).
Motorists are advised to use the M3 Junction 6 Spur Road, A30 Ringway South, and A30 Winchester Road.
National Highways is conducting essential electrical upgrade work and installing new technology for an electronic sign on the southbound carriageway to provide real-time information about congestion, incidents, or future closures.
How might this closure affect your travel plans? Do you think the new signage technology will improve traffic flow in the long run? Let us know!
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