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The dam forms a reservoir called Shasta Lake, which is the largest man-made lake and third largest body of water in California with its capacity of 4,552,000 acre-feet (5,615 GL) [48] and surface area of 29,740 acres (12,040 ha) at maximum pool. The lake extends for 15.3 miles (24.6 km) up the Sacramento River and branches for more than 21 ...
Although the project added no new storage capacity to the dam, it was designed to support a 20-foot (6.1 m) increase in height should that be needed in the future. The work was carried out from October to December 1990 and involved placing 93,000 cubic yards (71,000 m 3) of concrete. [18]
The dam is 502 feet (153 m) high and 1,285 feet (392 m) long, and its reservoir has a capacity of more than 3.7 million acre-feet (4.6 km 3), or about twice the annual flow of the upper Green. Operated to provide long-term storage for downstream water-rights commitments, the dam is also a major source of hydroelectricity and is the main flood ...
The placement consisted of 10,251 cubic yards of concrete placed in 58.5 hours using two concrete pumps and two dedicated concrete batch plants. Upon curing, this placement allows the 50,180-square-foot (4,662 m 2 ) cofferdam to be dewatered approximately 26 feet (7.9 m) below sea level to allow the construction of the Inner Harbor Navigation ...
The concrete was delivered in huge steel buckets 7 feet high (2.1 m) and almost 7 feet in diameter; Crowe was awarded two patents for their design. These buckets, which weighed 20 short tons (18.1 t; 17.9 long tons) when full, were filled at two massive concrete plants on the Nevada side, and were delivered to the site in special railcars .
Since an acre is defined as a chain by a furlong (i.e. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5 m 3). There has been two definitions of the acre-foot (differing by about 0.0006%), using either the international foot (0.3048 m) or a U.S. survey foot (exactly 1200 / 3937 meters since
It is a multi-span balanced cantilever bridge with a post-tensioned concrete box girder structure. Most of the curved bridge is 40 metres (131 ft) above water with a 60 m (197 ft) navigation span for ship traffic. The bridge rests on 62 piers, of which the 44 main piers are 250 m (820 ft) apart.
The cut-off wall, which consists of a 3 feet (0.91 m) thick plastic concrete mix constructed through the weathered portion of bedrock, varies in depth from 10 feet (3.0 m) to 110 feet (34 m) and totals 250,000 square feet (23,000 m 2). A two-line grout curtain reaches depths of 150 feet (46 m) below the foundation in the north segment of the ...