The A8 between Spiez and Interlaken-West will undergo renovation work, starting around 2032. In order to optimise the progress of the work, certain tasks that do not require public consultation will be carried out before the renovation project begins. From mid-January until the beginning of June, the Leissigen tunnel has been closed at night in order to replace or renovate various electronic operating and safety equipment as well as for additional work on the portals of the tunnel and the exit ramp at Leissigen-West. The night closures of the tunnel are now over and work focuses on the exit ramp, which is closed at night as follows:
- 3 June 2026 until approx. 21 June 2026 and 1 July 2026 until 8 July 2026, in the nights Monday/Tuesday to Friday/Saturday from 8 p.m. until 5 a.m.: closure of the exit Leissigen-West in direction of Interlaken
- 22 June 2026 until 26 June 2026: continuous closure of the exit Leissigen-West in direction of Interlaken
This work is heavily dependent on good weather conditions. Due to adverse weather conditions, two additional night closures are required, each from Sunday to Monday:
- 2 nights 14/15 and 21/22 June 2026, from 8 p.m. until 5 a.m.: closure of the exit Leissigen-West in direction of Interlaken
Traffic will be diverted via the next exit Därligen-West, where traffic can turn around and drive into Leissigen over the exit Leissigen-Ost. Through-traffic is not affected by the closures. Work is dependent on weather and will be postponed in case of unfit weather.
Closures for maintenance work
Several tunnel cleanings and maintenance works will take place on the A6 and A8 in the Bernese Oberland:
A8 Soliwald tunnel
26 May 2026, 7 a.m. until 27 May 2026, 4 p.m.: closure of the Soliwald tunnel on the north side of the Brünig pass in both directions.
Traffic will be diverted over Meiringen back to the Brünig pass. The connection over the pass is therefore always open. Access to Brienzwiler from the Bern side is also always guaranteed.
A8 lake of Brienz, tunnels Sengg, Chüebalm and Giessbach
4 nights from 1/2 June 2026 until 4/5 June 2026, from 8 p.m. until 6 a.m.: closure of the A8 between Interlaken-Ost and Brienz in both directions.
Traffic will be diverted over the cantonal road on the other side of the lake. Iseltwald stays accessible over the communal road via Bönigen.
A6 Spiezwiler tunnel and Emdtal bypass
1 night 11/12 June 2026, from 7 p.m. until 6 a.m.: closure of the A6 between Spiez and Mülenen in both directions.
Traffic will be locally diverted.
A8 Interlaken-Ost – Brienz
The A8 between Interlaken-Ost and Brienz has been completely renovated between 2021 and 2025. The last night closure took place in the night of 8/9 May 2025. Night closures were again necessary in autumn 2025 to make adjustments to the electrical equipment. This work was completed at the beginning of December 2025.
Reopening of the Glooten rest area
The Glooten rest area on the A8 between Interlaken-Ost and Brienz has served as a construction site for the past twelve years, with work focusing on the construction of rescue galleries for the national road tunnels and the complete renovation of the A8 on the lake of Brienz. It reopened to traffic on Monday, 9 March 2026. In addition to new sanitary facilities, there are now four fast-charging stations on each side.