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'U.S. Improvement, Great Kanawha River, West Virginia. Lock and Dam No. 7 - Lock looking downstream. The derricks have just been taken out of the chamber and the removal of the cofferdamn is about to begin. The most of the coping is set on the lock walls. Taken October 1, 1891.'

1. Lock and Dam No.7 during Construction, Kanawha River, W.Va.

'U.S. Improvement, Great Kanawha River, West Virginia. Lock and Dam No. 7 - Inside of first section of cofferdam for navigation pass. Mixing and placing concrete in progress. Upper wall and guard sill, and part of lower wall and coping, set. Rods and disks for wicket anchorage in place and partly concreted around. Ends of rods forming bridge anchorage shown just below guard sill. Taken October 1, 1891.'

2. Lock and Dam No. 7 During Construction, Kanawha River, W.Va.