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H. Filter Fabric. Provide nonwoven porous fabric, Dupont 'Typar', or approved <br /> equal, for use as indicated in details. As manufactured by Dupont, Reemay, P.O. <br /> Box 511, Old Hickory, TN, 37138, (800) 321-6271, or approved equal. <br /> I. Each tree opening shall have a tree grate as specified by Public Works. <br /> Each tree opening shall be uniform in size and dimension. Surface must <br /> be smooth and free of sharp edges. A concrete surround is required. <br /> Grates must'be secured to edge. <br /> J. Grate Pattern: 4 foot square <br /> Grate Size: 4' by 4' <br /> Grate Color: black <br /> Concrete ledge with security hardware required <br /> K. Products: Two tree grate types are included in the project, TYPE 1 (4' <br /> SQUARE) is for use in the City of University City, TYPE 2, (5' SQUARE) is for <br /> use in all other locations, including the City of Olivette and throughout the <br /> interchange. The grates are as follows: <br /> TYPE 1 (4' SQUARE): Neenah Foundry Company, (800) 558-5075, Metropolitan <br /> Collection R-8706-1A, 48" square grate with 18" diameter expandable tree <br /> opening, %4" slot openings. k' <br /> TREE GRATE, TYPE 2 (5' SQUARE): Neenah Foundry Company, (800) 558- <br /> 5075, Metropolitan Collection R-8707, 60" square grate with 18" diameter <br /> expandable tree opening, %4" slot openings. <br /> L. Placement and Mounting: Place and tree grates as per manufacturer's <br /> recommendations and as indicated in the Drawings. All grates shall be mounted <br /> flush with adjoining grades. Provide level section of concrete with drain and <br /> irrigation access hole as detailed. <br /> M. Tree Schedule <br /> Tree Schedule <br /> Symbol Species (2" Caliper) <br /> AC ACER CAPSETRE <br /> AG AMELANCHIER X GRANDIFLORA <br /> AGI ACER GINNALA <br /> ALC ALNUS CORDATA <br /> CB CARPINUS BETULUS "FASTIGIATA" <br /> CC CORYLUS COLURNA <br /> CV CRATASEGUS VIRIDIS "WINTER <br /> KING" <br /> EU EUCOMMIA ULMOIDES <br /> GB GINKO BILOBA "PRINCETON <br /> SENTRY" <br /> MA MAACKIA AMURENSIS <br /> MC MALUS "CENTZAM" <br /> MP MACLURA PROMIFERA "WHITE <br /> SHIELD" <br />