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<br /> Kni ght Piesold <br /> CONSULTING <br /> <br /> 77 <br /> 78 Excavation for toe or cut-off walls shall be made to the neat lines of the wall. Al] gabion <br /> 79 units shall be tied together each to its neighbor along all contacting edges in order to form a <br /> 80 continuous connecting structure. <br /> 81 <br />' 82 (b) Slope Mattresses. Slope mattresses shall be filled with angular or fractured stone. Rounded <br /> 83 boulders will not be permitted. Before the mattress units aze filled, the longitudinal and <br /> 84 lateral edge surfaces of adjoining units shall be tightly connected by means of wire ties <br />I 85 placed every 4 inches or by a spiral tie having a complete loop every 4 inches. The lid edges <br /> 86 of each unit shall be connected in a similaz manner to adjacent units. The slope mattress shall <br />I 87 <br />88 be anchored as shown on the plans. <br /> 89 The Contractor shall determine whether the holes for the soil anchor stakes aze to be drilled <br /> 90 <br />91 or whether the stakes may be driven. Care shall be taken to avoid drilling holes to a greater <br />depth than is necessary to place the top of the finished stake slightly above the top of the <br /> 92 finished mattress. <br /> 93 <br />94 <br />The Contractor will be allowed to assemble, partially fill, and tie together mattress-units on <br /> 95 the subgrade provided they can be placed on the slope without abrading the zinc coating on <br />' 96 <br />97 the wire mattress or permanently distorting the shape of the mattress in transporting and <br />installing the units on the slope. All prefabrication procedures shall be subject to approval. <br /> 98 <br />1 99 <br />100 506.09 Method of Measurement. The quantity to be measured under this item will be the <br />number of cubic yazds of riprap required to fill the gabions and slope mattresses in accordance <br /> 101 with the dimensions shown on the plans, or ordered. <br />I 102 <br /> 103 506.10 Basis of Payment. The accepted quantity measured as provided above will be paid <br /> 104 for at the contract unit price per cubic yazd for "Riprap (Gabions)" or "Slope Mattress" as the <br />' 105 case may be. <br /> 106 <br /> 107 Payment will be made under: <br /> 108 <br /> 109 Pay Item Pay Unit <br /> 110 Riprap (Gabions) Cubic Yard <br /> 111 Slope Mattress Cubic Yazd <br /> 112 <br /> 113 Structure excavation and structure backfill will be measured and paid for in accordance with <br /> 114 Section 206. <br /> 115 <br /> <br /> <br />3-29 <br />G'.\101\00100.021A1ReporNU(p\Tarhniwl Spaci(cations tloc February 3, 20W <br />