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management of the Colorado The Colorado has been used as a source of water for over 2000 years. During the last 100 years, it has changes from an uncontrolled river passing through a semi-desert. The Colorado water is now controlled by 11 major damns in 7 states and Mexico, produces 120miilion kw of electricity and irrigates 800 000 hectares of farmland. Characteristics of the river. The river rises in the snowfield of the Rockies, where the annual precipitation may be as much as 2540mm of snow during the winter. Temperatures throughout the Colorado basin are high during the summer, which means that there is a net loss of water through evaporation. Evapotranspiration can be as high as 1830mm per anum.
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