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The rip rap channel segment will be constructed to the following specifications: <br /> Segment two of the Stockpile B channel will be three hundred fifty feet in length. Segment two will be <br /> lined with durable rock rip rap. The rip rap will be placed in the excavated channel so that the rip rap <br /> extends from channel crest to channel crest throughout this length of Segment two, including the low <br /> water crossing of Road A. <br /> Construction shall proceed as follows: <br /> The channel segment shall be excavated to construct a channel which is trapezoidal in shape with a <br /> minimum bottom width of two feet (2') and a minimum depth of two feet (2'), as measured from the base <br /> of the channel to the crest of the channel, after placement of rip rap is completed. Side slopes shall not <br /> exceed 2.5H:IV. Note that the channel dimensions vary at the location of the low water crossing of Road <br /> A, as discussed below. After excavation, the channel base and side slopes shall be scarified. Fertilizer <br /> shall be applied to the channel at a rate of two tons per acre commercial fertilizer as specified in Task <br /> 10, Revegetation, and then broadcast seeded with the Diversion Mixture at a rate of sixty pounds (60#) <br /> per acre. The seed will be provided by the PROJECT MANAGER. Rip Rap shall be placed within the <br /> channel from channel crest to channel crest. Rip rap shall consist of angular durable rock only, <br /> averaging four to six inches (4" to 6"), as measured across the long axis of any single rock. Unaltered <br /> shale, friable sandstone and rounded rock are not acceptable materials. The rip rap shall be placed to <br /> an average depth of eight inches (8"). In no instance shall there be less than six inches (6") of rip rap <br /> overlying the channel base or sides. <br /> The design specifications for the low water crossing of Road A are unchanged from those described in <br /> Task 8, Surface Drainage: Channel Construction. <br /> Measurement and Payment <br /> The channel segment will be measured to the nearest linear foot. Payment for this task will be paid for <br /> at prices established in Additive Alternate on the Invitation and Bid sheet per linear foot installed. Such <br /> payment shall be considered full compensation for all labor, materials, equipment and all other items <br /> necessary and incidental to the furnishing of all materials and construction of the channel segment and <br /> low water crossing as directed and described in the specifications. Payment will be as this task is <br /> completed and approved by the PROJECT MANAGER. Payment for this task will be made only for the <br /> unit price shown under Additive Alternate of the Bid Schedule. Construction of the Additive Alternate <br /> channel segment is NOT guaranteed <br /> C\wp51\midc\bids\wrseproj <br /> 19 <br />