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• r ar�c v vi i <br /> fram buckets mounted on tractors, which then exit the site by driving over rings already filled w-ith 5 6 3 9 <br /> sand. The sand is then spread laterally from the pile using flat bottomed shovels and/or wide "asphalt <br /> rakes" to fill the rings. A stiff bristled broom should be used for finai "finishing" of the saad. The sand <br /> must be "campacted" by using water from hose, irrigation heads, or rainfall, with the finish grade no Iess <br /> than the top of rings and no more than 6 mm (0.2�") above top of rings. <br /> 3.04 Installation of Grass <br /> (Choose one paragraph below to meet grass installation method desired.) <br /> �A (Preferred method) Hydroseeding/hydro-mulching - A combination of water, seed and fertilizer <br /> are homogeneously mixed in a purpose-built,truck-mounted tank. The seed mixture is sprayed onto the <br /> site at rates shown on plans and per hydroseeding manufacturer's recommendations. Coverage must be <br /> uniform and complete. Following germination of the seed, areas Iacking germination Iazger than 20 cm <br /> x 20 cm (8" x 8"} must be reseeded iminediateiy. Seeded azeas must be fertilized and kept moist during <br /> development of the tnrf plants. <br /> B. Install thin sod directly over sand filled cings, filled no higher than the top of the rings. Sod <br /> strips should be glaced with very tight jaints. Sodded areas must be fertilized and kept moist during root <br /> establishment(minimum of 3 weeks). Sodded areas must be protected from any traffic, other than <br /> emergency veiucles, for a period of 3 to 4 weeks, or until the root system has penetrated and established <br /> well below the Grasspave2 units. <br /> C. Instail grass seed at rates per grass type. A Iight"dusting" of commercial topsoil mix, not ta <br /> exceed 1/2" (25 mm} can be placed above the rings and seed mix to aid germination ra.tes. Seeded areas <br /> must be fertilized a.nd kept moist during development of the turf plants. <br /> 3.05 Protection <br /> (Choose one para.graph below to match grass instailation method.) <br /> A. Seeded areas must be protected frorn any tr�c, other than emergency vehicies, for a period of 4 <br /> to 6 weeks, or until the grass is mature to l�wdle traffic. <br /> B. Sodded areas must be protected from any tr�c, other than emergency vehicIes, for a period of 3 <br /> to 4 weeks, or until the root system has penetrated below the Grasspave2 units. <br /> 3.06 Cleaning <br /> A. Remove and reglace segments of Crrasspave2 units where three or more adjacent rings aze broken <br /> or damaged, reinstatling as specified, so no evidence of replacement is appazent. <br /> B. Perform cleaning during the installarion of work and upon completion of the work. Remove aIl <br /> escess materiais, debris, and equipment from site. Repair any damage to adjacent materials and surfaces <br /> resulting from instaIlation of this work. <br /> END OF SECTION <br /> If you have any questions regarding this specification, please call Invisible Structures, Inc. t-800-233- <br /> 1�I0, overseas call 303-233-8383. <br /> 6/25/2007 <br />