Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Image not available
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Image not available
Visual Materials
A photograph album documenting the large-scale construction of New England hydroelectric dams in New Hampshire, Connecticut, and Maine, including several photographs of the Wyman Dam construction in Bingham, Maine, dated 1929-1930, and Ayer's Island Dam in Bristol, New Hampshire. The images include both commercial and amateur photographs depicting progress on the dams, construction sites, and power facilities, with many group portraits of workers. Some of the photographs have dates and captions written on the negatives.
photCL 513
Image not available
Visual Materials
Survey and construction photographs documenting Boulder (Hoover) Dam. The album holds 94 pages with prints. A small number of newspaper articles, project brochures and an additional 80 loose prints of various sizes are included in the box containing the album.
photCL SCE
Image not available
Visual Materials
A collection of 160 photographs (69 prints in an album and 91 loose prints) and ephemera related to the building of the O'Shaughnessy Dam, which formed the Hetch Hetchy Reservoir in Yosemite National Park. The photographs are black-and-white snapshots that appear to have been taken by a worker on the dam, which was completed in 1923. The album contains images of the dam being constructed, showing equipment, a railroad, scaffolding and cranes, concrete, and workers. The loose photographs depict the worker and family members, mountain cabins, fish caught in rivers, scenery in Yosemite Valley, and additional views of the dam. Also included are clippings about the Hetch Hetchy project and the program for the "Dedication of O'Shaughnessy Dam, Hetch Hetchy Project, built by the city and county of San Francisco, July 7th, 1923."
photCL 236

Visual Materials
A raised view of the Hoover dam while it was under construction. Most of the concrete has already been poured, and work seems to be concentrated on the top and at the base of the dam.
PhotCL Whitt 1955 ; Whitt neg. 0752
Image not available
Visual Materials
A collection of 160 photographs (69 prints in an album and 91 loose prints) and ephemera related to the building of O'Shaughnessy Dam, which formed the Hetch Hetchy Reservoir in Yosemite National Park. The photographs are black-and-white snapshots that appear to have been taken by a worker on the dam, which was completed in 1923. The album contains images of the dam being constructed, showing equipment, a railroad, scaffolding and cranes, concrete, and workers. The loose photographs depict the unidentified worker and family members, the workers' cabins, fish caught in rivers, scenery in Yosemite Valley, and additional views of the dam. Also included are clippings from 1934 about the Hetch Hetchy project and the program for the "Dedication of O'Shaughnessy Dam, Hetch Hetchy Project, built by the city and county of San Francisco, July 7th, 1923."
photCL 236

Visual Materials
Florence dam construction - View showing the buttresses as poured for the winter in the temporary spillway section. The concrete was poured in these places in order to prevent the trenches from filling up during the winter with dirt, rock, etc., and also to prevent being filled up in case of spill at this point next year.
photCL SCE 10 - 00027