Pierre Laporte Bridge

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Bridge in Quebec City and Lévis, Quebec

46°44′42″N 71°17′27″W / 46.74500°N 71.29083°W / 46.74500; -71.29083Carries

A-73CrossesSt. Lawrence RiverLocaleQuebec City and Lévis, QuebecOfficial namePont Pierre-LaporteCharacteristicsDesignSuspension bridgeTotal length1,041 m (3,415 ft)Longest span667.5 m (2,190 ft)No. of lanes6HistoryDesignerDemers, Vaudry, Gronquist
Parsons Transportation GroupConstruction costOriginally evaluated at $33 millions, it cost $55 million CAD^[1] (Approx. 435M$ in 2024 per Bank of Canada inflation)Opened1970^[1]StatisticsDaily traffic134,000TollFreeLocation Map

The Pierre Laporte Bridge (French: Pont Pierre-Laporte) is the longest main span suspension bridge in Canada.^[2] It crosses the Saint Lawrence River approximately 200 metres (660 ft) west (upstream) of the Quebec Bridge between Quebec City and Lévis. It spans 1,041 metres (3,415 ft).^[1]

It was originally named the New Quebec Bridge (Nouveau pont de Québec) and was supposed to be called Pont Frontenac (Frontenac Bridge) until it was renamed in honour of Quebec Vice-Premier Pierre Laporte, who was kidnapped and murdered during the October Crisis of 1970 as construction of the bridge was nearing completion. The bridge was constructed for the Province of Quebec, Department of Roads in a joint venture with the private firm of Parsons Transportation Group.

It carries Autoroute 73 northbound from Autoroute 20, the Trans-Canada Highway, to Quebec City and Autoroute 40 and also northwards towards Saguenay.

Quebec and Pierre-Laporte Bridges in winter.
Pierre-Laporte Bridge (May 2015).
View from under the north side of the bridge.

Specifications

Constructed: 1966-1970
Main span: 667.5 metres (2,190 ft)
Side spans: 186.5 metres (612 ft) each
Total length: 1,041 metres (3,415 ft) between anchorages
Deck: Six-lane freeway bridge
Capacity: 90,000 vehicles per day

References

^ ^a ^b ^c "Pierre Laporte Bridge". Montreal Roads.
^ Although Île d'Orléans Bridge is over 4 km in total length, its longest suspended span is 323 m and its total suspended length is 677 m, less than Pierre Laporte's 1,041 meters full length.