IP3 will close overnight on two sections between Santa Comba Dão and Viseu
Construction work requires full closures from 21:00 to 05:00 on the nights of 19-20 and 20-21 October, with signed diversions using the EN2.
Archived after the 18 October edition. Search retains this original briefing for background and accountability.
Archived 19 October 2026The diversion section changes between the two nights. Drivers should not reuse the first night's route from memory and should allow extra time for the lower-capacity alternative road.
- The first closure runs between the Treixedo and Tondela Sul junctions.
- The second runs between Canas de Santa Maria and São Miguel de Outeiro.
- Both closures are planned for 21:00-05:00, with traffic diverted through the EN2.
Each night affects a different work front
The closures support the installation of structural elements in the IP3 duplication and requalification project. The first night concerns the southern section; the second concerns the approach closer to Viseu.
Temporary signs on the night take priority over a saved route. Work conditions can also alter the time at which the road reopens.
Protect timed connections
The EN2 has different junctions, speeds and local traffic from the IP3. A journey to a hospital, airport or fixed appointment needs a larger margin during the closure window.
Check the current road alert before leaving and avoid unsigned shortcuts through villages. Emergency and heavy-vehicle instructions should follow the directions issued on site.
What you can do now.
- 01
Match the journey date to the correct affected section.
- 02
Allow extra time between 21:00 and 05:00.
- 03
Follow the signed EN2 diversion and current road alerts.
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