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Irrigation Canal Seepage and its Measurement

by Frederick L. Hotes,
E. Gordon Kruse,
Jack N. Christopher,
Sadiq Niaz,
A. R. Robinson,



Document Type: Proceeding Paper

Part of: Development and Management Aspects of Irrigation and Drainage Systems

Abstract:

Reduction in seepage is one of the primary reasons used to justify investment in canal lining. Such justification depends greatly upon estimates of seepage through surface and subsurface strata along the proposed or actual canal alignment, and through various types of canal lining. A review of the literature and the results of field tests reveal that the determination of amounts of seepage is not only difficult, but also inexact, even when executed by experienced, competent professionals. This paper reviews some of the more significant findings on canal seepage and the results of both research tests and seepage measurements on operating canals. The implications of the inherent variability and complexity of canal seepage on canal design and operations are discussed.

Subject Headings: Canals | Seepage | Linings | Irrigation | Subsurface environment | Permeability (soil) | Hydraulic design

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