H85.23.5

Book. Description: "Hetch Hetchy Water Supply by M.M. OShaughnessy, City Engineer, San Francisco" Issued by Bureau of Engineering, San Francisco. Plain tan covers. Inside numerous photographs, charts, facts about the water project. Tipped in folded black line map of Hetch Hetchy system after last page. Dimensions: 9" x 6" History: This project resulted in San Francisco's Sierra water supply.