View from Boulder Dam into Lake Mead, 1931-1936

Pg.98 #3487 Boulder Dam and Powerhouse, looking upstream from lower cofferdam. Oct. 28, 1935. Pg.98 #3500 Boulder Dam Switchyard, showing excavation and construction. Note Boulder Dam Highway in background. Oct. 28, 1935. Pg.98 #3501 Looking upstream in No.2 downstream plug, showing water conduit being placed. Oct. 28, 1935. Pg.98 #3506 Looking upstream toward No.3 downstream plug. Note clean-up operations, getting ready for carpenters. Oct. 28, 1935.

Description provided on front of image: "Visitors' corridor inside Boulder Dam."

The downstream face of Boulder Dam before the name was changed to Hoover Dam in 1947.

An image of the Boulder Dam Power Decennial plaque, which was made for the ten year anniversary of Boulder Dam, renamed Hoover Dam in 1947. Depicted on the sign is an outline of the downstream face of the Hoover Dam, along with outlines of the state seals of Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming. Transcribed from text across the sign: "Boulder Dam, Power Decennial. Flood Control - Irrigation - Power. Saluting Boulder Dam On Its Tenth Year Of Commercial Power Production. 1936-1946. Honoring The People Of The Colorado River Basin States. Whose initiative brought forth Boulder Dam, making possible: The maximum utilization of the water resources of this great river system; The prevention of floods; The conservation of water; The availability of hydroelectric energy to a wide area."

An image of Boulder Dam's crest, as seen from the Nevada side. Boulder Dam was officially renamed Hoover Dam in 1947.