The private consortium Signature on the St. Lawrence made public on Monday, a list of the first work under the Champlain Bridge Corridor by March 2016, on L’Île-des-Soeurs and the island of Montreal. Highlights.
Construction of the new Champlain Bridge, due to open in 2018, will also cause a major redevelopment of a section of Highway 15 and replacement of the old bridge of L’Île-des-Soeurs, already closed to traffic. This portion of the project was divided into three “sectors”: Atwater exchanger, the Gaétan-Laberge exchanger at Verdun and L’Île-des-Soeurs.
According to the list of work announced Monday by the private consortium which won the federal contract of $ 4.2 billion, Signature on the St. Lawrence, the three sectors will be affected by projects to be launched this fall.
Area 1 – Atwater Exchanger
The current Atwater interchange, which connects the street of downtown Montreal on Highway 15, do not look, on the urban plan. The new interchange will not be substantially different in form motorway, but it should represent real progress in terms of landscaping, according to these illustrations “before” and “after” produced by Signature on the St. Lawrence. Of the three projects planned in the area in October 1, only the demolition of the middle strip of the A15 should have impacts considered “average” on residents and traffic. It will take three to five days.
Area 2 – Gaétan-Laberge exchanger, Verdun
May Street in the Borough of Verdun and the dozen old houses that line, bought over the counter in Ottawa at the end of 2014, will be completely demolished by the end of November, according to the documents Signature consortium on the St. Lawrence. By the end of the demolition work, construction of a new aqueduct will be set up just south of the A15 and the limit of the inhabited areas of Verdun, La Salle Boulevard of up to Wellington. During this work, the noise could reach 90 decibels.
The demolition of the old bridge between L’Île-des-Soeurs and the island of Montreal, already closed to traffic, will begin next month. The construction of a new bridge, aligned along the axis of the new Champlain Bridge will stretch over two years, until September 2017. During these 24 months of work, the site should substantially drive up the ambient noise in the area between the Golf Road, the Boulevard de L’Île-des-Soeurs and the old disused bridge. The noise may approach the maximum allowed 75 decibels. Monitoring of noise levels will be assured.
Sensitive areas – Island of Montreal
Three areas “sensitive” to noise were established in the boroughs of Verdun and the Southwest. They are located on either side of the A15, between L’Île-des-Soeurs and Atwater exchanger. According to projections signature sound levels on the St. Lawrence, the work planned by March 2016 primarily affect the residents of the area M3, south of the A15. During the demolition of May Street, the noise levels will amount to 100 decibels. Some noise measurement scales consider that continued exposure to such noise can be dangerous. Temporary noise screens will be installed.
Sensitive areas – Île-des-Soeurs
Already affected almost every weekend by frequent closures of input or output between the island and highways 15 or Bonaventure, due to maintenance or repair of existing infrastructure, the population of L’Île Nuns live in the heart of the storm for another few years. However, by March 2016, the planned work on L’Île-des-Soeurs should not have major impacts on traffic, residents and other modes of transport (bus, bike). The only impacts deemed means are provided in the south of the old bridge of L’Île-des-Soeurs, in the area called I1.