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The Contra Dam is a concrete slender arch dam with a height of 220 m (720 ft) and crest length of 380 m (1,250 ft). The dam is 25 m (82 ft) wide at its base and 7 m (23 ft) wide at its crest. The dam structure contains 660,000 m 3 (23,000,000 cu ft) of concrete and the structure itself has a surface area of 44,500 m 2 (479,000 sq ft). The dam ...
The concrete arch portion of Mountain Park Dam functions as an uncontrolled, overflow spillway. The crest is at the top of the exclusive flood control pool at elevation 1,414.0, and is 320 feet (98 m) long measured along the axis of the dam. Concrete piers and training walls at each end of the spillway direct floodwater into and over the crest.
Basically, an arch dam is a structure that curves upstream and the water pressure is transferred either directly to the valley sides or indirectly through concrete abutments. [11] [5] Theoretically, the ideal constant angle arch in a V-shaped valley for such an arch dam has a central angle of 133° of curvature. This theory led to the ...
Arrowrock Dam is a concrete arch dam in the western United States, on the Boise River in southwestern Idaho, east of Boise. Opened 109 years ago in 1915, it is located on the border of Boise and Elmore counties, upstream of the Lucky Peak Dam and reservoir.
The first dam at the Barrett site was a 20-foot (6.1 m) high concrete diversion dam built in the 1890s as part of the Cottonwood-Otay System by the Southern California Mountain Water Company. [5] This dam's sole purpose was to feed the first Dulzura Conduit, a wooden flume that extended along the mountainside to the Lower Otay reservoir 12 ...
Savage Dam is a dam across the Otay River in the San Ysidro Mountains of southwestern San Diego County, California.It is a concrete arch gravity structure 149 feet (45 m) high, [1] and serves to store water from the San Diego Aqueduct's third pipeline for backup municipal uses in the San Diego metropolitan area.
An arch dam is a concrete dam that is curved upstream in plan. [1] The arch dam is designed so that the force of the water against it, known as hydrostatic pressure , presses against the arch, causing the arch to straighten slightly and strengthening the structure as it pushes into its foundation or abutments.
The multiple-arch dam consists of a number of single-arch dams with concrete buttresses as the supporting abutments, as for example the Daniel-Johnson Dam, Québec, Canada. The multiple-arch dam does not require as many buttresses as the hollow gravity type but requires a good rock foundation because the buttress loads are heavy.
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