The bridge has two sections across the Rivière des Prairies, which are separated by Île Bourdon.

[1] Built in 1939,[2] the bridge underwent a major reconstruction in 2001 as well as the addition of a reserved lane for the Metrobus on the eastern structure.

It is one of only two river crossings at the eastern tip of Montreal to the Lanaudière region (Repentigny, Charlemagne and Lavaltrie areas), the other being the Charles de Gaulle Bridge on Quebec Autoroute 40.

This section of Route 138 is named Notre-Dame Street, and the eastern end of the bridge also marks the start of the Chemin du Roy, a portion of Route 138 that follows the historic road to Quebec City.

The bridge is named after Pierre Legardeur (1600–1648), a New France general and the first lord of Repentigny.