Browse Items (68 total)

Panoramic view of work on south canyon wall

Panoramic view showing canyon wall down to bedrock. View also shows intermediate, south additional and upper cutoff walls and also shows progress of earth fill placement

Second panoramic view of canyon showing earth fill conveyor. Gallery Tunnel, lower cutoff wall, pump sump and contact of earth fill and gravel section of dam

Panoramic view of canyon showing earth fill conveyor, Gallery Tunnel, lower cutoff wall, pump sump and contact of earth fill and gravel section of dam

View showing Gallery Tunnel in various phases of construction. Lower part or section is first completed before upper section can be made.

Downstream side of dam after concrete has been poured. Forms are being removed and lower part of wall has already received its coat of of coal tar paint for protection against the elements and for water proofing.

General views of dam taken from upper coffer dam. Lower, intermediate, and upper cutoff walls show various phases of construction.

Construction view of lower and cutoff wall; taken from downstream side of dam. In lower part of picture forms for Gallery are being completed.

This view taken from upstream side of dam showing pump sump and peculiar pocket formation of bedrock.

This view taken from downstream side of dam shows reinforcement steel being placed in upper cutoff wall.