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A small channel located uphill and north of the old Ditch 8 provides contributory flow to the <br /> :.}stem. T,iis channe, .,gust ce .cngunened cy apprcx,mriately tnirty feet (30) so that it <br /> intersects the top of the newly constructed Ditch 8. This new channel segment will be <br /> constructed to the following specifications: <br /> Upon completion, this ditch will be trapezoidal in shape, the base being no less than five <br /> feet (5) in width and the side slopes being no steeper than 2 H : 1 V. The width of the <br /> ditch as measured from crest to crest will be no less than thirteen feet (13'). The total <br /> depth of the ditch as measured from the base to the crest will be no less than two feet <br /> (2.0'). Large rock encountered in the channel during excavation shall be removed from <br /> the channel, and stockpiled near the bottom of Ditch 8 in a location to be specified by the <br /> PROJECT MANAGER. <br /> Excavation of the ditch shall occur so that the excavated depth is two and four tenths feet <br /> (2.4') in depth. The base of the ditch upon completion of excavation shall be not be less <br /> than six feet (6). The base of the channel must be excavated so that the excavated <br /> dimension of two and four tenths feet (ie: 2.4') is uniform across the base of the channel <br /> as measured perpendicular to the direction of flow. High or low spots are not acceptable, <br /> and will require additional grading until the specified cross section is achieved. Excavated <br /> material may be placed in the old Ditch 8. <br /> Upon completion of the excavation, the base of the channel shall be ripped to a depth of <br /> three to four inches (3" to 4"). Ripping shall occur perpendicular to the direction of flow. <br /> Upon acceptance of the ripping, topsoil shall be applied to the excavated ditch. Topsoil <br /> shall be applied to the base, and sides of the excavation to uniform depth of four inches <br /> (4"). Following placement, the soil shall be hand raked to achieve a soil surface which is <br /> free of humps, dips, rocks or clods. The soil surface must be uniform, having no <br /> topographic variations, and it must be level from side to side as measured perpendicular <br /> to the direction of flow. <br /> Upon completion and acceptance of topsoil application, diammonium phosphate fertilizer <br /> (18-46-0) shall be applied at a rate of 300 pounds per acre. The fertilizer shall be <br /> supplied by CONTRACTOR. Seed provided by PROJECT MANAGER will be <br /> broadcast applied at the rate of ten pounds (10#) per acre. <br /> After seeding and fertilization is complete, a liner shall be installed. The liner shall <br /> consist of 100% coconut fiber encased top and bottom in heavyweight ultra violet <br /> stabilized netting. Components shall be sewn on 1.5 inch centers. North American <br /> Green 125 or approved equivalent is acceptable. The liner shall be installed per <br /> manufacturer's specifications. <br /> Measurement and Payment <br /> Feeder channels will be measured to the nearest linear foot. Measurement for payment <br /> will consist of physically measuring the length of each feeder channel installed. <br /> Payment for this task will be paid for at prices established in Item 3 of the Bid Schedule <br /> per linear foot installed. Such payment shall be considered full compensation for all <br /> labor, materials, equipment and all other items necessary and incidental to the <br /> construction of the feeder channels to the specifications, including furnishing and placing <br /> liners, placement of topsoil, distribution of seed and provision and installation of fertilizer <br /> as directed and described in the specifications. Payment will be as this task is <br /> 12 <br />