Many geosynthetic materials are marketed today as commodity products. The physical, mechanical, and hydraulic properties are set by the producers to accommodate production and marketing requirements as well as engineering functional requirements. There are cases where specialty products must be engineered to meet a particular set of functional qualifications. This paper describes a restoration project that had definite, restrictive
criteria for a geosyntheti (product. A geocomposite lining system was designed to meet the project criteria and was successfully installed to complete a regionally important irrigation and hydroelectric canal structure. The geocomposite
is a reinforced polypropylene geomembrane with specially selected geotextiles bonded to each side in panels custom sired to fit the canal. As designed, the geocomposite provided the required soil interface friction for side slope stability and superior tear and puncture resistance to handle installation stresses and environmental conditions.
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