Information bulletin
Closure of the N157 at Etrelles (35) following an accident
Automatically translated from French ·

Published on Monday, September 21, 2026 at 9:38 PM
A crash involving a heavy goods truck on the N157 in Etrelles, Ille-et-Vilaine, has caused the closure of traffic in the direction from Rennes to Paris. Motorists are advised to follow the diversion route via the RD178 and the roundabout in Etrelles.
Emergency instructions
Drivers must follow the detour route via RD178, the Etrelles roundabout, and the insertion ramp to the Etrelles interchange.
An accident on the N157 at the level of the municipality of Etrelles, in the department of Ille-et-Vilaine (35), has caused a closure of traffic in the direction from Rennes to Paris.
Emergency and safety teams are on site to ensure the safety of personnel and protect the site.
The DIRO operator has implemented a detour route:
- Drivers coming from Rennes on the N157 are diverted onto the RD178
- Take the RD178 to Etrelles
- Make a U-turn at the roundabout in Etrelles
- Return along the RD178
- Use the entry ramp at the Etrelles interchange to rejoin the N157 heading toward Paris
Upstream of the closure, a traffic jam of approximately 4 km has formed, with conditions trending toward worsening.
The duration of the event remains undetermined.
Users are advised to follow the instructions of the manager and to exercise caution when approaching the area.
Guides for Ille-et-Vilaine
Drought crisis in Ille-et-Vilaine since August 14, 2026
The department of Ille-et-Vilaine has been in a drought crisis since August 14, 2026. Water use restrictions apply to all sectors, including irrigation, watering, and filling swimming pools. Every user is urged to take action to preserve this precious resource.

Orange weather warning for heatwave in France
An orange weather warning for heatwave is in effect across France. All individuals are affected, particularly the elderly, people with chronic illnesses, isolated individuals, and children. Preventive measures are recommended to avoid heatstroke.

Prevention of burglaries during holidays in Ille-et-Vilaine
Before leaving on holiday, secure your home by locking all doors and windows, avoiding sharing your departure dates on social media, and signing up for the Operation Tranquillité Vacances. This free service enables the National Police or local Gendarmerie to monitor your home.
Latest bulletins for Ille-et-Vilaine

Yellow weather warning for thunderstorms
Typical regional phenomena are forecast, but occasionally and locally dangerous (e.g. mistral, summer thunderstorms, rising water levels, strong waves submerging the coastline).

Temporary restrictions - N164 Loudéac (22)
Department of Côtes d'Armor Municipality of Loudéac RN 164 PR 44+300 Following a truck fire on the auxiliary network (Departmental Road under the bridge structure) on 22 September 2025, traffic remains closed at the Launay-Grésillon interchange, in the direction Rennes - Chateaulin, at the level of the municipality of Loudéac. A detour route has been put in place; road users are advised to exit at this interchange and rejoin RN 164 via the entry ramp.

Road closure in Loudéac on RN 164
A complete traffic closure is currently in effect at the Launay-Grésillon interchange, in the direction Rennes - Chateaulin, in Loudéac. A detour route has been put in place. The duration of the event is undetermined.
