Roadwork
| Route | Section | Date of work | Type of work | Obstacles | Comments |
|---|---|---|---|---|---|
| Billy-Diamond Highway | km 60 to km 63 | September 28, 2026 to October 30, 2028 | Road rehabilitation at km 61 | Full roadway closure Reduced speed limit (between 30 and 70 km/h) Traffic signals will control alternating traffic on the detour road | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Billy-Diamond Highway | km 64 to km 69 | August 25, 2025 to September 30, 2028 | Replacement of a culvert battery with a bridge at km 66 | Full roadway closure Reduced speed limit (between 30 and 70 km/h). Traffic signals will control alternating traffic on the detour road | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Billy-Diamond Highway | km 101 to km 105 | September 28, 2026 to October 30, 2028 | Road rehabilitation at km 103 | Full roadway closure Reduced speed limit (between 30 and 70 km/h) Traffic signals will control alternating traffic on the detour road | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Billy-Diamond Highway | km 454 to km 456 | May 26, 2026 to September 30, 2028 | Culvert and guardrail rehabilitation work | Full roadway closure, detour route in place Reduced speed limit (between 50 and 70 km/h). | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Billy-Diamond Highway | km 460 to km 538 | May 19, 2025 to September 30, 2027 | Road rehabilitation, culvert replacement and guardrail replacement | Rough road surface in some areas. Reduced speed limit and presence of traffic controllers or pilot vehicles to control traffic. Posted speed limits between 30 and 80 km/h. | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Billy-Diamond Highway | km 538 to km 620 | June 8, 2026 to September 30, 2026 | Road rehabilitation, culvert replacement and guardrail replacement | Reduced speed limit and presence of traffic controllers or pilot vehicles to control traffic. Posted speed limits between 30 and 80 km/h. | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Chisasibi Access Road | km 3 to km 90 | May 18, 2025 to September 30, 2026 | Road rehabilitation, culvert replacement and guardrail replacement | Reduced speed limit and presence of traffic controllers or pilot vehicles to control traffic. Posted speed limits between 30 and 80 km/h. | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| La Grande-3 Access Road (LG-3) | km 0 to km 30 | May 8, 2026 to September 28, 2027 | Road rehabilitation, culvert replacement and guardrail replacement | Rough road surface in some areas. Reduced speed limit and presence of traffic controllers or pilot vehicles. Posted speed limits between 30 and 50 km/h. | Contact: Alain Andriamaro 873 995-2076 aandriamaro@sdbj.gouv.qc.ca |
| Wemindji Access Road | km 22 to km 65 | September 30 to November 6, 2026 | Granular resurfacing of the roadway | Rough road surface in some areas. Reduced speed limit and presence of traffic controllers or pilot vehicles to control traffic. Posted speed limits between 30 and 50 km/h. | Contact: Manamba Keita 873 95-5782 mkeita@sdbj.gouv.qc.ca |
| Route 167 | km 323 to km 342 | August 10 to October 2, 2026 | Granular resurfacing, guardrail upgrades and related work | Alternating one-way traffic. Reduced speed limits and traffic controllers or pilot vehicles present. | Contact: Manamba Keita 873 95-5782 mkeita@sdbj.gouv.qc.ca |