Construction site for Boulder Dam, now called Hoover Dam. With the approach of the annual spring rise in the river, the temporary truck bridge shown on the right has been abandoned. Site Name: Hoover Dam (dam)
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)