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Saturday, March 6, 2010

Macro Sites

in reference to blog entry: Autoroute System, 1.

macro sections:


1. At rue St. Laurent, riviere St. Pierre flows North-South. Division the the city East-West. Touchs Champs de Mars. Four Braid Bars, river sand and gravel. (surficial geology - Soils of Montreal analysis data)

2. ?m wall between Place d'Armes Station tunnel and Ville-Marie Expressway autoroute 720

3. rue Bleury and rue Viger intersection: sewage system and aquaduct system intersections : meter chamber, access chambre for principal aquaduct, man-hole sump pump.

4. Rue University at Square Victoria metro station tunnel : rivière St. Pierre leaves behind three point bars. (surficial geology - Soils of Montreal analysis data)
Although these change over time - the 1970's map is indicative the river was braided here. Here was a stream braiding off from the riviere St. Pierre, which crossed over the now Square Victoria station, and flowed South. This is the end of the parallel flow of the metro tunnel and the Ville-Marie Expressway.

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