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'U.S. Improvement, Great Kanawha River, West Virginia. Inside the cofferdam for the weir part of the dam, after the wickets and service bridge had been placed. Showing four wickets and two trestles standing next to the center pier. One of the wickets is 'on the swing' (en bascule). Vertical height of weir wicket above sill, 8 feet 6 inches; width between centers, 4 feet. Weir bridge trestles 12 feet high, spaced 8 feet apart.'

13. Lock and Dam No. 10 During Construction, Kanawha River, W.Va.

IDNO:
025719
Title:
Lock and Dam No. 10 During Construction, Kanawha River, W.Va.
Date:
1987/10/11
Description:
'U.S. Improvement, Great Kanawha River, West Virginia. Inside the cofferdam for the weir part of the dam, after the wickets and service bridge had been placed. Showing four wickets and two trestles standing next to the center pier. One of the wickets is 'on the swing' (en bascule). Vertical height of weir wicket above sill, 8 feet 6 inches; width between centers, 4 feet. Weir bridge trestles 12 feet high, spaced 8 feet apart.'
'U.S. Improvement, Great Kanawha River, West Virginia. Showing the weir part of the dam (from the center pier looking toward the abutment) after the wickets and service bridge had been placed inside the cofferdam. The wickets and service bridge standing.'

14. Lock and Dam No.10 During Construction, Kanawha River, W.Va.

IDNO:
025720
Title:
Lock and Dam No.10 During Construction, Kanawha River, W.Va.
Date:
1897/10/11
Description:
'U.S. Improvement, Great Kanawha River, West Virginia. Showing the weir part of the dam (from the center pier looking toward the abutment) after the wickets and service bridge had been placed inside the cofferdam. The wickets and service bridge standing.'
'View inside the cofferdam for the weir part of the dam. Taken from the center pier. Building and filling (with loose stone) the permanent cribs for the weir foundation in progress. Also excavating the 'stop-off ditch' in the hardpan to form part of the concrete core between the two lines of cribs. The foundations of this dam rest on hardpan - an indurated clay - from 18 to 24 feet below extreme low-water mark.'

15. Lock and Dam No. 11 During Construction, Chanoine Wicket Dam, Kanawha River, W.Va.

IDNO:
025721
Title:
Lock and Dam No. 11 During Construction, Chanoine Wicket Dam, Kanawha River, W.Va.
Date:
1897/09/07
Description:
'View inside the cofferdam for the weir part of the dam. Taken from the center pier. Building and filling (with loose stone) the permanent cribs for the weir foundation in progress. Also excavating the 'stop-off ditch' in the hardpan to form part of the concrete core between the two lines of cribs. The foundations of this dam rest on hardpan - an indurated clay - from 18 to 24 feet below extreme low-water mark.'
'United States Improvement, Great Kanawha River, West Virginia. View inside the cofferdam for the weir part of the dam, taken from the center pier. Showing the two unfinished lines of permanent cribs, and the unfinished concrete core between them, for the foundation of the weir. The sheer piling, driven to make the excavation and place the foundations for the shore abutment, shown in far end of cofferdam. The foundations of this dam rest on hardpan - an indurated clay - from 18 to 24 feet below extreme low water at the site. The tower for the cable way across the river (on the line of the dam), concrete plant, stone yard, etc., shown in the distance."

16. Lock and Dam No. 11 During Construction, Chanoine Wicket Dam, Kanawha River, W.Va.

IDNO:
025722
Title:
Lock and Dam No. 11 During Construction, Chanoine Wicket Dam, Kanawha River, W.Va.
Date:
1897/09/29
Description:
'United States Improvement, Great Kanawha River, West Virginia. View inside the cofferdam for the weir part of the dam, taken from the center pier. Showing the two unfinished lines of permanent cribs, and the unfinished concrete core between them, for the foundation of the weir. The sheer piling, driven to make the excavation and place the foundations for the shore abutment, shown in far end of cofferdam. The foundations of this dam rest on hardpan - an indurated clay - from 18 to 24 feet below extreme low water at the site. The tower for the cable way across the river (on the line of the dam), concrete plant, stone yard, etc., shown in the distance."