The collection consists of correspondence, reports, designs, specifications, and photographs, relating to dams, dam sites, and hydroelectric power plants in Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Wyoming, British Columbia, and Mexico.

John Samuel Eastwood was born on a farm near Minneapolis, Minnesota in 1857. Family tradition holds that his grandfather, Arent van Oosterhout, served as a Royal Dutch Engineer in the 18th century with responsibility for dike construction in low-lying regions of Holland. Although proud of his family heritage -- and the engineering activities of his grandfather -- John nonetheless "Americanized" his name from Oosterhout in 1878 in anticipation of entering the commercial and professional world.

5.42 linear feet (13 boxes)

Copyright has not been assigned to the University of California, Riverside Libraries, Special Collections & University Archives. Distribution or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. To the extent other restrictions apply, permission for distribution or reproduction from the applicable rights holder is also required. Responsibility for obtaining permissions, and for any use rests exclusively with the user.

The collection is open for research.