Final Report of the Engineering Board of Review on the Colorado River Aqueduct Location to the Board of Directors of the Metropolitan Water District of Southern California

First edition; 11 x 8 1/2; pp. [2], 5-45, [1]; textured, olive-green wraps, printed and ruled in black; illustrated with a centerfold map; small ink spot to lower right corner (not affecting readability) and a few worn spots to pp. 23; mild wear to wraps margins and tips of spine; in very good condition.The Colorado River Aqueduct (CRA) would be the largest public works project in Southern California during the Great Depression. With the rapid growth of Los Angeles in the early 20th century, the Owens River watershed could no longer meet the needs for domestic and commercial suply of water, which prompted civil engineer William Mulholland and several others to start start searching for an alternative. By the late 1920s, zeroing in on the Colorado River, the newly-formed Metropolitan Water District considered eight routes for the aqueduct, before chosing the Parker Route, which in turn required the building of the Parker Dam. The aqueduct construction was completed in 1935 and water first flowed in it in 1939. The current report outlined the necessity for an increased water supply, the routes considered, the quality of the Colorado River water, etc.…