Follow this alert in real time
Download ClickAlert to get notifications
Information bulletin
Maintenance work on RN57 at the Bois de Peu tunnel
Automatically translated from French ·
Published on Saturday, September 12, 2026 at 7:51 PM
Safety works on the cliffs and road rehabilitation will be carried out on the RN57, at the Bois de Peu tunnel (25), from 21 September to 25 November 2026. Lane closures and diversions will be implemented, particularly on 19–23 and 26–27 October 2026.
Maintenance works on RN57 at the Bois de Peu tunnel (25)
Work period
- From Monday 21 September 2026 to Wednesday 25 November 2026.
Responsible organisation
- Direction interdépartementale des Routes Est (DIR Est), on behalf of the State.
Objectives of the works
- Maintenance of structures.
- Protection against rockfalls.
- General upkeep and replacement of equipment.
- Rehabilitation of part of the roadway.
Safeguarding works on the cliffs
- Maintenance of rockfall protection nets installed in the 2010s.
- Removal of stones from the nets.
- Clearing of undergrowth and tree felling.
- Extension of certain rockfall protection net screens.
- Installation of a reinforcement net on a rock compartment.
- Maintenance of existing structures.
Road rehabilitation works
- Swelling of clay soils in the Bois de Peu tunnel.
- Road surface deformations causing discomfort and safety risks.
- Resurfacing by planing the first layers of asphalt, followed by reapplication to level the road surface.
Other maintenance works
- Mandatory inspections of equipment in tunnels.
- Verification of camera functionality.
- Inspection of electrical installations.
- Securing access for DIR Est teams.
Traffic arrangements
- Direction Besançon → Pontarlier
- Right-hand lane closed from 8:00 a.m. on 21 September to 5:00 p.m. on 25 November 2026. Traffic restricted to the left-hand lane.
- Closure of both lanes:
- From Monday, 19 October at 9:30 a.m. to Friday, 23 October 2026 at 5:00 p.m.
- From Monday, 26 October at 9:30 a.m. to Tuesday, 27 October 2026 at 5:00 p.m.
- Detour in place.
- Direction Pontarlier → Besançon
- Left lane closed from Monday, 19 October at 8:00 a.m. to Friday, 23 October 2026 at 5:00 p.m. Traffic on the right lane.
- Both lanes closed from Monday, 26 October at 9:30 a.m. to Friday, 30 October 2026 at 5:00 p.m.
- Detour in place.
Detours
- Direction Besançon → Pontarlier (19–23 and 26–27 October 2026)
- RN83 « côte de Larnod » → Roundabout RN83/RD104 → RD104 → Fontain → Roundabout « La Vèze » RD104/RN57.
- Direction Pontarlier → Besançon (26 October at 9:30 a.m. to 30 October 2026)
- Roundabout « La Vèze » RN57 → RD104 → Fontain → Roundabout RD104/RN83 → RN83 « côte de Larnod ».
Additional information
- Press dossier available at: https://www.dir.est.developpement-durable.gouv.fr/rn57-travaux-d-entretien-de-filets-pare-blocs-et-a2841.html
Guides for this area
Piqûres et morsures en Occitanie : bons gestes à adopter
En période estivale, méduses, tiques, abeilles, guêpes, frelons et moustiques tigres sont présents en Occitanie. Pour limiter les risques, adoptez les bons réflexes. En cas de réaction allergique, appelez immédiatement le 15 ou le 112.
Prevention of drowning risks in Haute-Garonne
In 2025, 19 drownings were recorded in Haute-Garonne, nearly 40% of which were fatal. To swim safely, keep a close eye on children and adopt proper safety behaviors in rivers, lakes, and swimming pools.
Prévention des risques en montagne l'été
L'été, la montagne attire de nombreux vacanciers. Pour profiter en toute sécurité, il est essentiel de bien se préparer : matériel adapté, météo surveillée, itinéraire partagé. Le ministère des Sports recommande des gestes simples pour éviter les accidents.
Latest bulletins for this area
Stage 13 of the Tour de France
# 13th stage of the Tour de France Updated on 07/17/2026 Joint prefecture - Departmental council order setting the conditions for the 13th stage of the Tour de France in Haute-Saône [Download Prefecture-Departmental Order - Tour de France PDF - 1.89 MB - 07/16/2026](/contenu/telechargement/47790/381510/file/Arrêté DSTT - Tour de France.pdf) ## Documents listed in the article * [Download Prefecture-Departmental Order - Tour de France PDF - 1.89 MB - 07/16/2026](/contenu/telechargement/47790/381510/file/Arrêté DSTT - Tour de France.pdf)
Worsening of the drought situation and reinforcement of water use restriction measures
# Deterioration of the drought situation and reinforcement of water use restrictions Updated on 16/07/2026 Water use restriction orders: <https://www.haute-saone.gouv.fr/Actions-de-l-Etat/Environnement/Eau/Secheresse/Arretes-de-restriction-d-usage-de-l-eau> Actions to take: [Download brochure - water - drought-1 PDF - 1.32 MB - 16/07/2026](/contenu/telechargement/47782/381439/file/Brochure eau - sécheresse-1.pdf) ## Documents listed in the article * [Download]
Regulatory decree on fuel and fireworks
# Regulation Order on Fuel and Fireworks Updated on 08/07/2026 From 8 July 2026 at 18:00 to 15 July 2026 at 08:00, the following are prohibited by prefectural order 70-2026-07-08-00003: * The sale, possession, use, and transportation of fuel in portable containers are prohibited throughout the department of Haute-Saône, except when necessarily justified by the customer. * The purchase, sale, transfer, use, and transportation of recreational fireworks of categories F2 and F3 are prohibited.