A Barber-Greene conveyor closes the gap in the downstream dyke ...

The temporary earth dyke across the floor slab near pier two of ...

The temporary earth dyke across the floor slab near pier two of ...

Raising the grade of the southern dyke of the western cofferdam ...

The view from the northwest (from pier nine) of men building the ...

Over 4000 cubic square feet of water passing through the eastern ...

Pumping out the western cofferdam, as seen from the west bank.

The competed section and the western cofferdam as seen form the ...

Underpinning completed between sections 78 and 80 of the ...

The American Dam conduit section B forms and footing.

Placing the first concrete footings near station 81 of the ...

Conduit section B forms and steel for footing are seen near ...

Conduit section B forms for footing as seen from the north of ...

Rock Sub-grade with the concrete piles beyond are seen from ...

Forms and steel hold the concrete in the east footing of ...

Walls form around steel surrounding the conduit section "B" near ...

Placing concrete in the western footing using a Barber-Green ...

Workers pour the first section of the eastern side wall of ...

The western cofferdam shown partly excavated, preparing to drive ...

American Dam - View west from east bank of river; closing gap in ...

4500 cubic square feet of water pass through the American Dam.

4500 cubic square feet of water pass thought the floodgates, as ...

4500 cubic square feet of water pass through the floodgates, as ...