Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek, Huntington Lake Dams - Copy of Page 3 of Stone & Webster Report on Backfills on Dams at Huntington Lake: 4. Dam #1 - Badly disintegrated and porous concrete in vertical joint near station 5+66, elevation 690-4, after partial removal. Part of old repair plug in lower left center. 5. Dam #1 - Area near station 5+66, elevation 6904. Chipping in progress. Note two holes from which air escaped when applied to 4" drain through downstream backfill. 6. Dam #1. A second view of leak intakes near station 5+66, elevation 6904'. 7. Dam #1. Area near station 5+66, elevation 6904' after guniting.
photCL SCE 02 - 21846
Visual Materials
Dam 1 second view of leak intakes near station 5-66 elevation 6904. For Page 3 of Stone & Webster Report.
photCL SCE 02 - 21846a
Visual Materials
Dam 1. Badly disintegrated and porous concrete in vertical joint near station 5-66, elevation 6904 after partial removal. Part of old repair plug in lower left center. For Page 3 of Stone & Webster Report.
photCL SCE 02 - 21846b
Visual Materials
Big Creek, Vermilion Dam - Downstream slope of Vermilion Dam in vicinity of Sta[tion] 37+00 near east end showing group of Piezometer & Drain holes installed in 1956.
photCL SCE 02 - 44885
Visual Materials
Big Creek, Huntington Lake Dams - Copy of Page 10 of Stone & Webster Report on Backfills on Dams at Huntington Lake: 33. Removing old timbers & chipping out porous concrete in cut off wall. 34. Chipping out bad rock pockets and old timbers near station 0+90. 35. Chipped out area between 1+00 & 1+25. Drilling grout holes at right. 36. Chipped out pocket of loose and leaky rock, station 0+15. 37. View of hole under bottom of cut off wall discovered during excavation. Station 1+55.
photCL SCE 02 - 21853
Visual Materials
Big Creek, Huntington Lake Dams - Progress of backfills on Huntington Lake Dams by Stone & Webster Co. - Leakage from drain below Dam #3-A.
photCL SCE 02 - 20185