The bridge-tunnel Louis-Hippolyte-Lafontaine will be completely closed to traffic for three days to Montreal next weekend, to allow the construction of a gutter to facilitate the drainage of water seeping into the structure, and accumulate in cold weather on the floor.
Bulkier than spectacular, the intervention of the Ministry of Transport of Quebec will cause serious disturbances in traffic on the road network of the South Shore, the approach of the Jacques Cartier Bridge between the South Shore and Montreal, as well as in metropolis, where the streets Notre Dame and Sherbrooke, among others, will detour paths diverted traffic to the tunnel and Highway 25.
A specialist of the ministry, the engineer Fadi Moubayed, said this morning that three police forces, those of the agglomeration of Longueuil and Montreal, as well as the Sûreté du Québec, will be called upon to help regulate traffic may be difficult between the tunnel and the Jacques Cartier Bridge, and in the east of Montreal.
No less than 31 variable message signs, even in the Quebec City area, notify users of the road to the complete closure of the tunnel to Montreal. The MTQ will recommend including motorists in the area of the National Capital to use Highway 40 to travel to Montreal, rather than the A20, to avoid clutter predictable traffic at the approach of the metropolis.
On the South Shore, motorists are invited to use the A30 to roll to Champlain Bridge or Route 132 to Jacques Cartier Bridge.
Towards the tunnel, the A20 will be closed from exit 90 (A20 West / Rte 132 / La Prairie / USA / Varennes).
The tunnel will be open to traffic normally towards the South Shore, but the output 90 will be off limits to avoid overloading Route 132, where all the traffic towards Montreal will be diverted.
All other bridges to the South Shore (Jacques Cartier, Victoria, Champlain and Mercier) will be free of obstacles during this long weekend of Thanksgiving
The MTQ hopes to raise the site to 14h Monday to reopen the tunnel in time to return home after the long weekend.