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Santiago Dam
Santiago Dam (also known as Santiago Creek Dam) is an earth/rockfill dam across Santiago Creek in Orange County, in the U.S. state of California, forming Irvine Lake. The earth dam and its reservoir serve for flood control and recreational purposes. It lies upstream (southeast) from the city of Orange and north of Irvine. Irvine Lake is the largest body of fresh water entirely in Orange County.
==History==
Construction on the dam started in 1929 with a joint venture by the Irvine Company and Serrano Irrigation District. After the site was graded, the dam was built using dirt and rock excavated from the sides of the canyon and from the streambed both above and below the dam site. The structure was completed in 1931 at a cost of $1 million, and its reservoir, Irvine Lake, filled by 1933. In the late 1930s, the lake was stocked with fish, and was opened to the public for recreational use in 1941.
The dam was built to serve the purpose of flood control, irrigation and municipal water use. With heavy suburban sprawl downstream encroaching since the 1960s, agriculture along lower Santiago Creek has practically ceased. It is currently owned by the Irvine Ranch Water District and the Serrano Water District (the former Serrano Irrigation District). Today the dam marks the usual ending point of surface flow in Santiago Creek, as all the discharge is retained in the reservoir and downstream flow is limited to seepage and stormwater.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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