M3 Basingstoke junction 6 Black Dam and junction 7 Dummer interchanges
We need to install ducting across the M3 in Basingstoke to connect a variable message sign to our communications network.
Latest updates
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27 February 2025
Making the connection
We need to install ducting across the M3 in Basingstoke to connect a variable message sign on the southbound carriageway with our communications network point in the northbound verge.
We can then use the sign to inform road users travelling south on the M3 between the Black Dam and Dummer interchanges about any congestion, incidents or planned closures ahead.
For safety during this work, the motorway will be closed in both directions between junction 6 Black Dam and junction 7 Dummer interchanges from 9pm Friday 4 April to 6am Monday 7 April.
Diversion
- M3 junction 6 spur road
- A30 Ringway South
- A30 Winchester Road
Project information
Documents

Traffic information
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