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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]
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 ...
A roll way or running pad is the pad placed on a concrete slab or on the ties on the outside of the 1,435 mm (4 ft 8 + 1 ⁄ 2 in) conventional track along both running rails of a rubber-tyred metro or along the unconventional track of a tram. The rubber-tyred wheels roll directly on the roll ways. With a conventional track:
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.
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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 ...
Owned by State of California. Rebuilt as Los Angeles County prison camp: LA-09: Nike 1B, 2C/30A/12L-A Los Angeles Mount Disappointment/ Barley Flats [12] (Angeles National Forest. 1956–1961 Destroyed by fire, former LA County Probation Department work camp.
The Twenty-eight by '28 initiative is an effort set forth by former Mayor Eric Garcetti that the City of Los Angeles complete 28 transportation infrastructure projects before the start of the 2028 Summer Olympics on July 14, 2028 () and the 2028 Summer Paralympics the following month.