Landscape · L-Z897Z

Irrigation Trenching

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Irrigation supply lines, laterals, and control wiring are laid within trenches excavated into native soil beds unless a sand bed is specifically required. Supply lines and wiring require twenty-four inches of cover, while lateral lines require sixteen inches of cover. Control wiring is bundled and taped every ten feet alongside trace wire. All pipes and pipe sleeves crossing under roadways, parking lots, entrances, and fire access lanes require thirty-six inches of cover and separate sleeves per NFPA 24, Section 10.44.

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