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PROJECT WORK DESCRIPTION <br /> Task 1 <br /> Mobilize and Demobilize Crew and Equipment <br /> Measurement and Payment <br /> Payment for Task 1 shall be reflected in a lump sum bid price under Item 1 on the Invitation and <br /> Bid sheet. Payment shall include all the CONTRACTORS expenses for mobilization of <br /> equipment to the site, transportation of the equipment within the Project Area, employee time, <br /> labor and materials necessary to accomplish the requirements of this Task, compliance with the <br /> conditions and requirements described in this Task description, and final clean up of the work <br /> place. <br /> If the price bid for mobilization and demobilization is greater than 15 percent (15%) of the total <br /> contract price, invoices supporting the mobilization costs will be required before payment is <br /> approved. <br /> Payment shall be made as described in Specification 1.0, Mobilization / Demobilization of the <br /> General Bid Specifications, Colorado Inactive Mine Reclamation Program, 2006. <br /> Task 2 <br /> Sediment Pond Maintenance: <br /> The sediment pond was constructed within the margins of the ephemeral stream which drains <br /> through the mine site. The sediment pond is in need of repair in order allow flood waters to <br /> safely pass the existing embankment. <br /> The 30" CMP riser pipe located in the sediment pond will need to be cut and removed at the <br /> base. The 30" CMP pipe and associated items will need to be disposed in an approved landfill <br /> or salvaged by the CONTRACTOR. The underground portion of the 30" pipe will be plugged <br /> with concrete to a length of 4 feet. The concrete shall consist of Type II Portland Cement, <br /> conforming to ASTM C 150, unless otherwise approved by the PROJECT MANAGER. <br /> The existing emergency spillway on the west side of the pond will need to be lowered 2 feet and <br /> lined with rip-rap located on site. The channel will need to remain trapezoidal in shape with <br /> 2.5H:1 V side slopes. The spillway dimensions are approximately 50 feet long by 8 feet wide <br /> (bottom width). The spillway will need to be lined with rip-rap for a length of 75 feet along the <br /> inside of the channel and down the pond slope to safely pass flood waters. Rip rap, available on <br /> site, will consist of 12" to 18" diameter rock. Placement will be such that voids will be eliminated <br /> with rock contacting rock. The rock will be keyed in place on the beginning of the spillway to a <br /> depth of 3' feet and spaced every 20 feet with the last key at the end of the spillway. Side slope <br /> rip rap will extend up the sides of the constructed channel to a minimum 4' height. <br /> Measurement and Payment <br /> There will be no measurement for payment of Task 2, Sediment Pond Maintenance. Payment <br /> for this Task will be reflected in a lump sum bid under Item 2 on the Bid Schedule. This lump <br /> sum bid will cover all costs for excavating, hauling, placing and rip-rap lining as described in <br /> - 7 - <br />