View of the main batching and mixer control station low-level concrete mixing plant. The operators at this station control the charging of aggregates, cement and water into two mixers and also controls discharge of the mixers. Site Name: Hoover Dam (dam)

Boulder Dam under construction

From the UNLV Libraries Single Item Accession Photograph Collection (PH-00171)

From the UNLV Libraries Single Item Accession Photograph Collection (PH-00171)

From the UNLV Libraries Single Item Accession Photograph Collection (PH-00171)

From the UNLV Libraries Single Item Accession Photograph Collection (PH-00171)

From the Morgan Sweeney Photograph Collection (PH-00228). Hoover Powerplant Arizona wing, showing details. The empty wheel pit prior to start of construction on generating Unit A-3.