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The rebuilt upper reservoir of the Taum Sauk plant, nearing completion in this photo, is the largest RCC dam in North America. [1]Roller-compacted concrete (RCC) or rolled concrete (rollcrete) is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios, and increasingly with partial substitution of fly ash for portland cement. [2]
At least 18 segments of the Los Angeles Zanja system, including various portions of the Zanja Madre, have been documented as they have been uncovered during construction projects over the years. The resource was first formally documented by archaeologists in 1978 when archaeologist Julia Costello discovered a portion of the Zanja Madre during ...
Pacoima Dam is a concrete arch dam on Pacoima Creek in the San Gabriel Mountains, in Los Angeles County, California. The reservoir it creates, Pacoima Reservoir, has a capacity of 3,777 acre⋅ft (4,659,000 m 3) [1] Built by the Los Angeles County Flood Control District, which became part of the Department of Public Works, it was completed in 1928.
The original project consisted of 24 mi (39 km) of open unlined canal, 37 mi (60 km) of lined open canal, 97 mi (156 km) of covered concrete conduit, 43 mi (69 km) of concrete tunnels, 12.00 mi (19.31 km) steel siphons, 120 mi (190 km) of railroad track, two hydroelectric plants, three cement plants, 170 mi (270 km) of power lines, 240 mi (390 ...
The California Portland Cement Company was incorporated on September 18, 1891, in Los Angeles County, California, with a capital stock of $500,000 ($17 million in 2023). [3] Its first board of directors consisted of Los Angeles residents John P. Culver and Frank H. Jackson, and San Bernardino, California , residents Ernest Waycott, Harry R. O ...
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