Laserfiche WebLink
will be constructed so that they are no steeper than 5H:1V. The channel depth will be <br /> 2.5 feet prior to placing rip rap. Rip rap averaging four to six inches (4" to 6"), as <br /> measured across the long axis of any single rock, will be placed within the channel at <br /> this location. The rip rap will extend from side to side of the channel (side slopes and <br /> base) for the ten feet (10') width of the low water crossing. <br /> Upon completion of the surface drainage, the flow from the existing Rock Tunnel <br /> drainage will be diverted into the newly constructed channel. The old channel, from the <br /> point of divergence from the new channel, shall be filled with earthen materials <br /> excavated during construction of the new channel. The old channel will be graded flat. <br /> A sump is located at the end of the old channel (north of the intersection of the old and <br /> new channels). This sump shall be dewatered, and filled with dirt. The dirt shall be <br /> compacted until refusal during filling operations. <br /> Rock Dump Channel <br /> A small three hundred and fifty feet (350') long drainage channel will be constructed on <br /> the Rock Dump in order to convey runoff from the top and north side of the facility to <br /> the large swale on the south side of the pile. PROJECT MANAGER will stake the <br /> location of the channel in the field prior to initiation of work. <br /> The channel will be trapezoidal in shape, having a two feet (2') bottom width and side <br /> slopes no steeper than 3HAV. The minimum depth of the channel shall be two feet (2') <br /> as measured from the bottom of the channel to the adjacent ground surface. These <br /> dimensions must be achieved after placement of rip rap. <br /> Rip rap shall consist of durable rock material averaging four inches (4") in diameter, as <br /> measured across the long axis of any single rock, will be placed within the channel at <br /> this location. The rip rap will extend from side to side of the channel (side slopes and <br /> base). I <br /> Measurement and Payment <br /> Drainages will be measured to the nearest linear foot. Payment for this task will be <br /> paid for at prices established in Task 5, sub-tasks a and b on the Invitation and Bid <br /> sheet per linear foot installed. Such payment shall be considered full compensation for <br /> all labor, materials, equipment and all other items necessary and incidental to the <br /> furnishing of all materials and construction of the Drainages as directed and described <br /> in the specifications. Payment will be as this task is completed and approved by the <br /> PROJECT MANAGER. Payment for this task will be made only for the unit price <br /> shown under Task 5, sub-tasks a and b, of the Bid Schedule. <br /> TASK 6 ROAD WORK Reclamation of the roads leading to the <br />