The story of a little Dutch boy who used his finger to plug a dyke has a new meaning Manitoba.
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Background: The story of a little Dutch boy who used his finger to plug a dyke has a new meaning Manitoba. At Grand Rapids, engineers are using a more complicated method. It's an involved operation in the construction of Manitoba's new power dam. The task: plug with concrete all holes in the limestone beneath the dam. This is known in the trade as grouting, and work is carrying in throughout the holiday period. Cement is drilled into the ground to a depth of several hundred feet. Without this underground curtain of concrete, water would leak out underneath the dam. The first stage of the work covers 15-hundred feet of the dam and should be completed by the spring. The next stage covers 17 miles. (PAUSE) Two diamond drilling companies, one Canadian and one American--are combining to get the job done. The Grand Rapids project is the biggest grouting job in North American history.