Louis-Hippolyte Lafontaine Bridge-Tunnel

Louis-Hippolyte Lafontaine Bridge-Tunnel

bridge_name= Louis Hippolyte Lafontaine Bridge-Tunnel

carries= 6 lanes of Autoroute 25
crosses= St. Lawrence River
clearance= 4.4 m (14 ft 5 in)
traffic= 120 000
open= March 11, 1967


The Louis Hippolyte Lafontaine Bridge-Tunnel (Pont-Tunnel Louis-Hippolyte-La Fontaine) is a Canadian highway bridge-tunnel running over and beneath the St. Lawrence River. It connects the Island of Montreal with the south shore of the river at Longueuil, Quebec.

Construction began in 1963 and it was commissioned on March 11, 1967. Named for the respected Lower Canada political reformer Louis-Hippolyte Lafontaine, the Lafontaine Tunnel is an immersed tube structure, measuring 1,391 m (4562 ft) long. It carries the Autoroute 25 expressway and passes beneath Île Charron (Îles de Boucherville & entrance/exit #1 of Autoroute 25), as well as the main shipping channel in the St. Lawrence River immediately downstream from the St. Lawrence Seaway.

ee also

*List of crossings of the Saint Lawrence River
*List of bridges in Montreal

External links


Crossings navbox
structure = Bridges
place = St. Lawrence River
bridge = Louis Hippolyte Lafontaine Bridge-Tunnel
bridge signs =
upstream = Jacques Cartier Bridge
upstream signs =
downstream = Laviolette Bridge
downstream signs =

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