Beach at Port de Sóller with palm trees, buildings and the Tramuntana mountains behind

Sa Mola tunnel refurbishment: what to expect in 2027

The tunnel linking Sóller with the Port is getting a 7 million euro overhaul. There is no closure schedule yet, but it helps to know your options if you plan to drive down to the harbour.

Investment: EUR 7 million
Tender: From 31 Oct 2026
Works: Expected Q1 2027
Detour: Ma-11B

Quick summary

The Consell de Mallorca has approved the final project to refurbish the sa Mola tunnel on the Ma-11 between Sóller and the Port, at a cost of 7 million euros.
The tender opens on 31 October 2026 and works are expected in the first quarter of 2027.
The contract runs 15 months, with a pause from 1 June to 30 September, leaving about 11 months of actual work.
Partial closures are planned and occasional full closures are not ruled out; in that case traffic would use the old road, the Ma-11B.
This is not the tunnel that crosses the mountains towards Palma: that one is a different project with its own timetable.

Updated: 1 November 2026

Which tunnel is this

The sa Mola tunnel carries the Ma-11 from Sóller down to Port de Sóller. It opened to traffic in February 2007 after a little over a year of construction. It is currently quoted at 1,290 metres, and the Consell says it handles around 4,000 vehicles a day in each direction.

Do not confuse it with the Sóller tunnel, the long one under the mountains on the road from Palma. That one has its own news: see our post on the night closure in November 2026.

What will be done and when

This is a full renovation rather than a cosmetic job. It covers crack repairs and waterproofing against leaks, a new road surface and interior signage, and a switch to LED lighting with emergency lights. Ventilation, evacuation routes, hydrants and fire detection are also being upgraded, along with traffic lights and message panels, plus a real-time monitoring system. Drainage is improved, a protective barrier is modified, and noise-reduction measures are added at the portals.

The tender starts on 31 October 2026, and the sources agree that work would begin in the first quarter of 2027. The schedule allows 15 months from contract award, but building stops between 1 June and 30 September to avoid the peak season, so the effective working time is roughly 11 months.

Closures and detour

The Consell expects partial traffic cuts and does not rule out closing every lane at certain times. Days and hours have not been published. If the tunnel does close completely, traffic between Sóller and the Port would be sent along the old access road to the harbour, the Ma-11B.

If you are driving a rental car, the practical advice is simple: add a few spare minutes and do not cut it fine for a boat, a lunch booking or a flight.

What it means if you head to the Port in 2027

What follows is our own practical reading, not official information:

Check before you set off: once closures are fixed they should be announced by the Consell and local media. Look again the day before.
Tram: the Sóller tram links the town and the harbour on its own track, so it does not depend on the road. Check its timetable.
Bus: if traffic is diverted, bus journey times may change. Confirm with the operator.
Parking: the Port fills up in summer and at weekends. See where to park and consider leaving the car in Sóller and taking the tram down.

For ideas once you arrive, read our guide to Port de Sóller.