Page 10

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Title
Page 10
Source
Endorsement of House bill 11449 (similar to Senate bill 3511) Congress of the United States : providing for the construction by the federal goverment of the Boulder Canyon Dam and the All-American Canal
Is Part Of
http://digital.library.unlv.edu/u?/dig,8
Full text
THE FLOOD MENACE In the southeast corner of California is located the Salton Sea Basin, which lies from 50 to 250 feet below sea level. It is 110 miles long by 40 miles wide and has a population of approximately 70,000. The southeast portion of the basin, sloping from the Mexican boundary line to the Salton Sea, is known as Imperial Valley. Northwest of the Salton Sea lies that part of the basin known as Coachella Valley. Although of exceedingly fertile soil, this region from time immemorial had remained a hot, forbidding, desert waste. When the work of reclamation began it immediately became apparent that the same river that supplied the water needed by the farmers would, through its annual floods, be a constantly increasing menace to the inhabitants of the valley. Levees were constructed by the people of Imperial Valley in an effort to hold the river in its course. Against its floods these works, at best, could give but temporary and uncertain protection. With the coming of each season's high waters serious breaks in the levee system have occurred, resulting in heavy losses. In 1906 the river broke from its course entirely, washed aside the levees and dikes and overwhelmed thousands of acres of producing land. Hundreds of thousands of tons of silt are deposited by the river from season to season, along its lower reaches. These deposits have served to raise the bed of the stream until now the Colorado River is riding on a ridge many feet above the surrounding country.

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