In 1931, State Engineer Edward Hyatt published a similar but less extensive proposal called the State Water Plan, with a projected cost of about $550 million.
然而，加州人的问题后来并未没有被理会——1931年，州工程师Edward Hyatt提出了一个类似，但是不那么高昂的建议，名叫州水计划，预计成本约为5.5亿美元。