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CRS Completes Twin Culvert Under Highway 400

CRS Completes Twin Culvert Under Highway 400

This operator is viewing the fruit of his labor from the cutterhead’s perspective. Recently, CRS Tunnelling, Inc. completed a 61m, 1800mm RCP culvert to twin an existing like diameter culvert under Highway 400 in Barrie, ON for the Ontario Ministry of Transportation. An Akkerman Series II 720 #TBMand #TunnelingBoringSystem made short work of the installation, which was completed in less than a week in compacted sand and sandy clay ground conditions. The new culvert will assist in the conveyance of Hotchkiss Creek and features a 0.3m culvert embedment below the creek to facilitate fish migration. The culvert replacement is part of larger initiative to widen Highway 400, replace a six-lane overpass structure at Tiffin Street and rehabilitate a Barrie-Collingwood Railway structure, both built in 1955. The project was designed by Morrison Hershfield.