Visual Materials

Big Creek, Huntington Lake Dams

Description: Big Creek, Huntington Lake Dams - Placing rock lining in diversion channel, 12' pipe to Rancheria Creek.
Type: Visual Materials(Opens in new tab)
Date: 7/6/1955
Call number: photCL SCE 02 - 43276
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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Big Creek, Huntington Lake Dams
Visual Materials
Big Creek, Huntington Lake Dams - Clearing in Rancheria Creek from bridge to Tunnel Channel.
photCL SCE 02 - 43277
Big Creek, Huntington Lake Dams
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Big Creek, Huntington Lake Dams - Placing concrete in 24" diameter pipe encasement through impervious upstream section of dam.
photCL SCE 02 - 43533
Big Creek, Huntington Lake Dams
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Big Creek, Huntington Lake Dams - Rock detention dike across Rancheria Creek approx. 1000 feet upstream from Portal Powerhouse Dike constructed to create stilling basin for overflow from surge chamber. Flow about 2 cfs.
photCL SCE 02 - 44836
Big Creek, Huntington Lake Dams
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Big Creek, Huntington Lake Dams - Rancheria Creek near Portal Powerhouse, showing temporary road crossing, which also dams the flow of the creek.
photCL SCE 02 - 44838
Big Creek, Huntington Lake Dams
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Big Creek, Huntington Lake Dams - Rancheria Creek at its confluence with leakage water from construction activities at Portal Powerhouse. Estimated flow about 1 cfs.
photCL SCE 02 - 44837
Big Creek, Huntington Lake Dams
Visual Materials
Big Creek, Huntington Lake Dams - Copy of Page 12 of Stone & Webster Report on Backfills on Dams at Huntington Lake: 42. Drilling 30' grout holes. 43. Grouting 30'grout holes. Blow pipe in hole in foreground. 44. View of grouting connections. One hole being grouted, another under air pressure after final refusal. 45. Old core drill hole 12 in front of Dam 3A, through which water tests were made. Note broken condition of rock typical in vicinity of this dam. 46. View of upstream face of Dam 3A after backfill has been replaced.
photCL SCE 02 - 21855