Culvert P-19779 in Sainte-Agathe-des-Monts — Exit 83 reopening reported

Summary

This record is based on public sources. It does not characterize the deficiency and does not constitute an inspection of the structure or engineering advice.

After the preventive closure related to culvert P-19779, CIME reported on September 29, 2026, that Exit 83 on northbound Highway 15 had reopened. The MTMD announced the preventive closure on September 1, after an inspection found a culvert deficiency. Replacement work was in preparation at that point.

Document updates

September 29, 2026 — reopening reported

Documentary update · November 10, 2026

After the preventive closure related to culvert P-19779, CIME reported on September 29, 2026, that Exit 83 on northbound Highway 15 had reopened. According to the broadcaster, the ministry had scheduled culvert reconstruction through October 9. The Québec 511 regional listing checked on November 10 no longer showed the closure. CIME reported the reopening. The official sources reviewed gave no exact reopening time.

For preventive follow-up, record the date of the closure notice, the planned end of work and the reported reopening date separately. From a safe location, observers can document the visible condition of the pavement tie-in, any signs of erosion nearby and the removal of temporary signs. No field observations were made for this update.

Report → Validation → Monitoring → Action

Reported → Validated → Monitored → Action

1. Reported September 2, 2026
   

   The City publishes the MTMD notice regarding the preventive closure of Exit 83 on Highway 15 North.

   Documented fact

2. Validated September 2, 2026
   

   The municipal source reports that an inspection revealed a deficiency in a culvert; the MTMD directory identifies structure P-19779 as closed.

   Documented fact

3. Monitored September 5, 2026
   

   Québec 511 still listed the closure and the detour via Exit 86 on that date.

   Documented fact

4. Action September 2, 2026
   

   Replacement of the culvert is reported to be in preparation.

   Documented fact

Documented timeline

1. September 2, 2026
   

   Preventive closure of Exit 83 on northbound Highway 15 for an indefinite period.

   Documented fact · Ministère des Transports et de la Mobilité durable, City of Sainte-Agathe-des-Monts

2. September 2, 2026
   

   The MTMD bridge and viaduct directory lists P-19779, a structure located on a Highway 15 ramp in Sainte-Agathe-des-Monts, as “Closed.”

   Documented fact · Ministère des Transports et de la Mobilité durable

3. Status checked September 5, 2026
   

   Québec 511 still indicates that the exit is closed and that a detour is available via Exit 86, chemin de la Montagne and montée Alouette.

   Documented fact · Québec 511

4. September 29, 2026.

   CIME reports that the ramp has reopened.

   Reopening reported by local media

Documented fact

Facts supported by the sources

Initial status documented in September 2026.

• Exit 83 on northbound Highway 15 has been preventively closed for an indefinite period.
• The City reports, citing the MTMD, that an inspection revealed a deficiency in a culvert.
• The MTMD bridge and viaduct directory identifies P-19779 as a Highway 15 ramp structure in Sainte-Agathe-des-Monts and indicates that it is closed.
• A detour is announced via Exit 86, chemin de la Montagne and montée Alouette.
• Replacement of the culvert is reported to be in preparation.

Announced intervention

Intervention

The MTMD states that work to replace the culvert is in preparation. The start date, duration and reopening date have not been specified.

Review of the file

The preventive closure, public identification of the structure and announcement of a replacement warrant documentary monitoring. However, the available information does not make it possible to characterize the deficiency or establish the culvert’s technical condition.

Undetermined elements

• The precise nature and extent of the original deficiency.
• The actual start and end dates of construction, the exact reopening time and the details of the completed work.
• Any post-construction checks and the final cost.

Next milestone

Look for a dated MTMD completion notice or work summary. Record the return to service and any remaining restrictions separately.

Sources

1. Ministère des Transports et de la Mobilité durable Preventive closure of Exit No. 83 on northbound Highway 15 September 1, 2026
   View source ↗
2. City of Sainte-Agathe-des-Monts Preventive closure of Exit No. 83 on northbound Highway 15 September 2, 2026
   View source ↗
3. Ministère des Transports et de la Mobilité durable Bridge and Viaduct Directory — structure P-19779 View source ↗
4. Québec 511 Network status — Highway 15, Exit 83 in Sainte-Agathe-des-Monts View source ↗
5. CIME. Reopening reported on September 29, 2026. Published at 10:30 a.m. and updated at 2:06 p.m.
6. Québec 511. Laurentides–Lanaudière regional listing, checked November 10, 2026.

Record imported from BSIR.ca. The consultation dates and reservations of the source file have been retained.