Effects of Lateral Heading Flow Steadiness on Lateral Spillage

by Eduardo A. Latimer, (A.M.ASCE), CH2M HILL, Tempe, United States,
Michael R. Petersen, (Aff.M.ASCE), CH2M HILL, Tempe, United States,
Andrew A. Keller, (M.ASCE), CH2M HILL, Tempe, United States,

Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems


Hourly inflow and spillage rates from three lateral canals in the Imperial Irrigation District in Southern California were measured for seven months and subsequently analyzed to identify any potential correlation between headgate flow unsteadiness and total spillage. The study produced significant evidence to show that reduced inflow fluctuations result in a decrease of total spillage. Estimates indicate that reducing the unsteadiness of lateral inflow by 50 percent could decrease spillage by 1 percent of the total inflow. For these laterals, the decrease equals approximately 20 percent of the total spillage.

Subject Headings: Hazardous materials spills | Flow measurement | Steady flow | Inflow | Canals | Light rail transit | Lateral stability | Irrigation districts | California | United States

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