Sedimentation in the All-American Canalby J. P. Silva, Imperial Irrigation District, Imperial, CA, USA,
D. A. Twogood, (M.ASCE), Imperial Irrigation District, Imperial, CA, USA,
Abstract: During the planning for the All-American Canal, by the U. S. Bureau of Reclamation as part of the Boulder Canyon Project, works were designed at the head of the canal to remove between 50 and 80 percent of the sediment carried by the River water. Since 1942, following completion of the All-American Canal, the District has received its total water supply from the Colorado River through the Canal. The Desilting Works, operated and maintained by the District, remove over 70 percent of the sediment each year from the River water before it flows into the All-American Canal. This paper describes the operating procedures for the Desilting Works and maintenance practices for sediment removal from the All-American Canal.
Subject Headings: Sediment | Canals | Sediment transport | Water supply systems | High-rise buildings | Water reclamation | Water flow | Colorado River
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