Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek, Huntington Lake Dams - Upstream protection excavating 12"x12" water cut-off along margin of steel plate membrane at east end of Dam #1.
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Visual Materials
Upstream protection - View of marginal cut-off in concrete along east slope of Dam #1. Note 6' anchor rods grouted in cut-off to hold marginal channel.
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Visual Materials
Big Creek, Huntington Lake Dams - Copy of Page 11 of Stone & Webster Report on Backfills on Dams at Huntington Lake: 38. General view of chipping and drilling operations. 39. Concreting trench in front of cut off wall. 40. Upstream face of Dam 3A looking north after completion of concreting and guniting. 41. Upstream face looking south after completion of concrete and gunite work.
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Visual Materials
Big Creek, Huntington Lake Dams - Copy of Page 9 of Stone & Webster Report on Backfills on Dams at Huntington Lake: 27. Looking south from station 0+75. Cutoff wall during excavation. 28. Looking north from station 0+60, during excavation. Note ends of timpers at bottom of battered face. 29. Close-up of concrete cut off wall, station 0+40. 30. Porous rock pockets in concrete, near station 1+00 31. Porous rock pockets in concrete cut off wall, near station 0+10 32. Chippin gand removing porous concrete. Looking south from station 0+50.
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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.
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Visual Materials
Big Creek, Huntington Lake Dams - Copy of Page 8 of Stone & Webster Report on Backfills on Dams at Huntington Lake: 23. Dam 3. Typical chipped out vertical contraction crack before guniting. 24. Dam 3. Chipped out vertical & horizontal cracks near north end. 25. Dam 3A. Excavation at upstream face and water test of old drill hole 12 in progress. 26. Dam 3A. Looking south from station 0+25. Upstream cut off wall during excavation.
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