From the Morgan Sweeney Photograph Collection (PH-00228). Arizona roof, takeoff structure for Bank Takeoff structure for Unit A-9 is to right, completed October, 1951.
From the Morgan Sweeney Photograph Collection (PH-00228). A-4, fluted diffuser for pressure relief valve energy absorber upon arrival at Hoover Dam, Nevada Cableway landing, circa 1951.
From the Morgan Sweeney Photograph Collection (PH-00228). 150-ton cableway landing, Nevada. Title: Half section and inlet quarter section of A-9 scroll case upon arrival at Hoover Dam, Nevada Cableway landing, circa 1950s.
From the Morgan Sweeney Photograph Collection (PH-00228). 30,000 kva transformer for Unit A-4 upon arrival at the Nevada cableway landing in December 20, 1951.
From the Morgan Sweeney Photograph Collection (PH-00228). Water Treatment Plant Wash Water Tank for new installation in December 1950. Tank steel 50,000 gallon capacity – dimension 12’0” diameter, 60’0”long. DWG – No. 45-301-4143 = $6,059.00.
From the Morgan Sweeney Photograph Collection (PH-00228). Interior Arizona Wing of powerhouse, elevation 673. Construction activities during installation of generating units A-3, A-4 and A-9 on May 29, 1951.