Montreal’s Champlain and Mercier bridges will be undergoing major construction this summer, and officials are asking drivers to be patient.

Much like last year, work will be concentrated on weekend "blitzes," during which crews will work around the clock.

Work on the Champlain Bridge is expected to span three to five weeks starting at the end of April and lasting until the end of June, depending on weather conditions and work progress.

Roadwork targets: summer 2013

  • Highway Bonaventure.
  • Highway 15.
  • Nun's Island Bridge.
  • Champlain Bridge.
  • Mercier Bridge.
  • Jacques-Cartier Bridge.

Jacques Cartier Bridge

Most of the repairs for the Jacques-Cartier Bridge will be during Quebec's annual construction holiday – the last two weeks of July.

Work on the bridge will include the reconstruction of the concrete barriers at the bridge’s entrance and repairs on the exit ramp heading towards Taschereau Boulevard.

The bike path will also be closed during this period. Officials recommend that commuters use the sidewalk on the bridge’s east side as an alternative.

Mercier Bridge

According to the Jacques Cartier and Champlain bridge authority, officials plan to replace more than 300 slabs on the Honoré-Mercier Bridge by the end of 2013.

The majority of the construction will be scheduled in April, on weekdays from 8 p.m. to 5 a.m. and on weekends.

Officials are also warning the public of a major construction "blitz" that will last day and night from July 13 to Aug, 11. During this period, one lane will be open in each direction between Montreal and the South Shore.

Nun's Island Bridge

The construction of a temporary bypass bridge between Montreal and Nun's Island will also begin this summer.

The bridge will be built as a temporary alternative to the original Nun's Island bridge, which is slated to be replaced eventually as part of a Transport Canada project.

The total cost of the roadwork will be $180 million.