Dropping a dam into place

The Alcoa Power Company, Limited has under construction a large hydroelectric power development at Chute-a-Caron on the Saguenay River which has a flow varying from 35,000 to 225,000 cu. ft. per sec. The site selected was a gorge located in a rocky section of the river. To complete the large masonry dam across this gorge it was necessary to divert the river, at low flow, through a new channel.