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Mercier Bridge Traffic Cameras

Live cameras at the Honoré-Mercier Bridge (pont Honoré-Mercier) and along Route 138 through LaSalle, plus the Autoroute 20 Saint-Pierre interchange where most bridge traffic joins.

Live video from Québec 511. A fresh clip loads automatically every minute while the page is open.

Mercier Bridge & Route 138

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Route 138 at pont Honoré-Mercier (Montréal side)Route 138 à la hauteur du pont Honoré-Mercier (côté Montréal)
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Route 138 at rue AirlieRoute 138 à la hauteur de la rue Airlie
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Route 138 at rue WanklynRoute 138 à la hauteur de la rue Wanklyn
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Route 138 at rue ClémentRoute 138 à la hauteur de la rue Clément

Saint-Pierre interchange (A-20)

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Route 138, south of Saint-Pierre interchangeRoute 138 au sud de l'échangeur Saint-Pierre
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Aut. 20, east of Saint-Pierre interchangeAut. 20 à l'est de l'échangeur Saint-Pierre
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Aut. 20, west of Saint-Pierre interchangeAut. 20 à l'ouest de l'échangeur Saint-Pierre

About the Mercier Bridge

The Honoré-Mercier Bridge carries Route 138 across the St. Lawrence between LaSalle and Kahnawake, connecting Montreal to Châteauguay and the southwest South Shore. It’s a common route for drivers heading to the A-30 and to the U.S. border at Lacolle or Châteauguay.

Traffic for the bridge comes along Route 138 (boulevard Newman area) in LaSalle and from the Saint-Pierre interchange on Autoroute 20. If the Mercier is slow, compare the Champlain Bridge.

Nearby cameras