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Description
Plates in: Photographs, Strawberry Dam, Philadelphia Ditch, original construction, 1912-1916, photograph album, page 39-40, 42-44. Shows forms, derricks and trusses. View 1 (2010-0221). Placing truss to carry flume over toe wall excavation. Span 52 ft. Forms for toe wall shows beyond flume and lower down. Oct. 22, 1913 -- view 2 (2010-0223). Toe wall excavation on right hand side showing excavation and form work both in progress. Taken from top of completed toe wall, Nov. 2, 1913 -- view 3 (2010-0224). General view of toe wall, showing section of completed toe wall, excavation in center, and form work on right side under adit. Nov. 2, 1913 -- view 4 (2010-0228). Toe wall excavation in center of stream taken from tunnel adit. Pit about 20 ft deep. Nov. 2, 1913 -- view 5 (2010-0229). Bed rock and form work on extreme right hand end of toe wall ready for concrete. Nov. 6, 1913 -- view 6 (2010-0230). Toe wall excavation from bottom of cut on right hand side. Note end of completed toe wall in background. The last cleaning of bed rock is being made ready for concrete, Nov. 6, 1913. View 7 (2010-0231). Toe wall work, Nov. 15, 1913 -- view 8 (2010-0232). Pouring right hand end of toe wall, showing of pouring the wall in sections. Note pin rock in foreground. Taken from Adit, Nov. 8, 1913 -- view 9 (2010-0234). Toe wall taken from left hand bank. Note water is used to prevent the concrete from freezing, Nov. 20, 1913 -- view 10 (2010-0235). Pouring concrete in the toe wall, directly under the flume. This flume carries the river across the cut for this work. Note cyclopean concrete. Nov. 15, 1913. Album documents the building of Strawberry Dam between 1912 and 1916; dam was built at the site of an older Strawberry Dam on lower Strawberry Creek for Sierra and San Francisco Power Company by Willetts & Burr; also shows work on Philadelphia Ditch, a ditch and flume running from a point on South Fork of Stanislaus River 1 1/2 miles sw of town of Strawberry to Philadelphia Diggins (ditch bought by Power Company from Stockton Gravel Mining Co. in 1912); dam and ditch intended to supply water locally and electricity and power to markets as far as San Francisco.
Type
image
Format
Photographs. Nonprojected graphic
Extent
10 photographic prints ; 4 7/8 x 5 7/8 in. and 6 1/2 x 4 7/8 in.
Identifier
(C)001433398CSL01-Aleph
Language
English
Subject
Sierra and San Francisco Power Company--Photographs Dam construction--California--Tuolumne County Excavation--California--Tuolumne County Hoisting machinery Trusses Concrete--California--Tuolumne County Construction workers--California--Tuolumne County Flumes Waterworks--California--San Francisco Snow--California--Tuolumne County Strawberry Dam (Calif.)--Photographs Tuolumne County (Calif.)--Photographs Photographic prints Photograph albums
Place
California Tuolumne County San Francisco Strawberry Dam (Calif.) Tuolumne County (Calif.)
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