Landscape · L-G6MVD

Valve Box Installation Detail

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This top view layout detail defines the proper positioning and minimum setbacks for round and rectangular valve boxes relative to adjacent edges of lawn, walks, fences, or curbs. Boxes must maintain a minimum twelve-inch clearance from edges and be centered directly over the valve for ease of servicing. Set enclosures one inch above finish grade or mulch in shrub areas, and flush with finish grade in turf areas. Position valve boxes parallel to one another and perpendicular to the edge while avoiding heavy soil compaction around the sides. Lids must be secured with installed bolts, using enclosures manufactured by NDS, Carson, or equal.

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