Hmmm. I've got a few thoughts on the subject.
Overview
June 8, 2007
1. WIKI Salton Sea
$this->bbcode_second_pass_quote('', 'T')he Salton Sea as it exists today is the aftermath of a man-made environmental disaster that occurred between 1905 and 1907, when improper management of irrigation routes from the Colorado River caused the river to flow unchecked into the Salton Sink for some two years.
Early efforts to provide irrigation to the fertile Imperial Valley region had culminated in the creation of the Imperial Canal, leading from intakes on the Colorado River to the below-sea-level Imperial Valley. As this waterway became blocked by the heavy load of silt deposited by the river, the California Development Company, which was responsible for the irrigation system, decided to build a diversion channel on Mexican territory, out of reach of the then-new U.S. Bureau of Reclamation. However, the ill-advised new route crossed unstable river delta that was regularly reshaped during floods of the Colorado, and the CDC did not have the funds necessary to construct a proper headgate system at the intake from the Colorado river to prevent accidents if the river flooded.
In 1905, massive flooding of some 150,000 cfs on the Colorado overran the diversion channel and diverted the river into the Salton Sink. Cutback erosion of the soft soil in the channel deepened it and created a steadily-growing waterfall that worked its way back towards the location of the river intake, with the falls at one point reaching 100 feet in height. Scientists worried that if the cutback reached the river itself, the river would be permanently diverted into the Salton Sink, and the cutback might even continue up through Yuma, Arizona. The Southern Pacific Railroad, which had substantial business interests in the region, spent some three million dollars (under intense government pressure) over two years to stop the river's flow into the Salton Sink. In 1907 these efforts finally succeeded, and the river resumed its natural course towards the Gulf of California.
The residual water from this ecological catastrophe formed the Salton Sea of today, and continuing man-made agricultural runoff has been largely responsible for sustaining it. This event also created the New River and Alamo River. As the basin filled, the town of Salton, a Southern Pacific Railroad siding and parts of the Torres-Martinez Indian Reservation land were submerged.
The Salton Sea disaster was a significant part of the impetus behind the construction of dams on the Colorado River, notably Hoover Dam. One purpose of the dams was to help prevent the type of unchecked flooding that had nearly destroyed the Imperial Valley.
2. Dead Sea
$this->bbcode_second_pass_quote('', 'R')eservoir: Construction of a storage reservoir at the tunnel exit will enable the operation of a 1500 to 2500 megawatt peaking power hydroelectric plant. Running the plant about eight hours daily, the level of the Dead Sea could be raised to the 400 meters below sea level elevation in about seven years after the project begins operation. After the Dead Sea is filled to the desired elevation, continuous operation will be enabled by the increased installed desalination capacity, by increased removal of Dead Sea water for the potash mining operation, by pumping into reservoirs for marine fish production, and by evaporation from the surface of the Dead Sea.