Proposed Improvements in Lateral Canal Operations

by Joel D. Palmer, USDA, United States,
Albert J. Clemmens, USDA, United States,
John A. Replogle, USDA, United States,
Allen R. Dedrick, USDA, United States,



Document Type: Proceeding Paper

Part of: Planning Now for Irrigation and Drainage in the 21st Century

Abstract:

Uniform and flexible supplies of irrigation water are required for farmers to make the best use of their on-farm application systems. Results of a study of deliveries at the lateral canal level show that large volumes of water can be misapplied when flows vary in an unpredictable manner. Nonuniformities are shown to be an interactive combination of operational and hydraulic features of the delivery system. Solutions to the problems associated with inappropriate flow conditions can be approached from either side of the farm-delivery agency interface, although improvements to the delivery system provide benefits that accrue to all water users. The ditchriders' operations can be modified for more dynamic control of the water flow. Water demands can be better met by changing the type and settings of control structures.

Subject Headings: Canals | Hydraulic structures | Structural control | Water flow | Irrigation water | Irrigation systems | Flow measurement

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