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If any trash is encountered during excavation for channel construction, trash will be hauled off to <br /> the nearest County approved landfill site. <br /> Measurement and Payment <br /> No unit measurement for payment will be made for Item 2. A lump sum bid for drainage <br /> construction will be reflected under Item 2 of the Bid Schedule. The price bid will include all of the <br /> Contractor's cost of whatever nature to provide a drainage channel in accordance with the drawing <br /> and specifications, including all labor, equipment, excavation, hauling, regrading, operating <br /> supplies, salaries of operators and any other expenses incidental to the operation of the equipment <br /> in the performance of the channel construction in accordance with this specification and bid item. <br /> ITEM 3- DRAINAGE CONSTRUCTION - ROCK OUTCROP TO SLOPE CHANNEL <br /> An eight (8) foot wide drainage course will be constructed to provide positive drainage from the <br /> location where the slope channel day-lights on the bench to the rock outcrop ledge as located in <br /> the field. The drainage will be constructed according to the attached Drawing 2 Drainage Course <br /> Rock Outcrop to Slope and Check Dam x-section and Plan WITHOUT the riprap requirements. <br /> Check dams will be contructed at 50' intervals from with riprap per attached Drawing 1. Check dam <br /> riprap, available on-site, will consist of an evenly distributed combination of 60% minimum 4' <br /> diameter rock riprap, 20% 2' to 3' diameter rock and 20% 12" to 18" rock. The 4' diameter rock <br /> will be keyed into the bottom of the constructed 3:1 channel through excavation placement not to <br /> extend more than 30" high. The check dam will be constructed in a V shape with the middle of <br /> the V situated 4' in slope length, up slope in elevation. The check dams will be constructed so <br /> that the riprap elevation down channel and up the side slopes will be 24" higher in elevation than <br /> the middle portion of the check dam. Riprap will extend a minimum 4' up the side slopes. Side <br /> slopes to the constructed channel will be at a maximum 2:1 slope. Positive drainage will be <br /> maintained from the bench cut to the east, into the drainage channel. <br /> Material as a result of drainage course construction may be excavated and hauled to or graded <br /> against the excavated bench cuts. Prior to depositing or grading excavated material against the <br /> excavated bench cuts, existing vegetation and soils to a 24 depth will be graded off and stockpiled. <br /> Stockpiled vegetation and soils will be evenly redistributed over the deposited material from <br /> drainage course construction upon completion of earthmoving procedures. <br /> If any trash is encountered during excavation for channel construction, trash will be hauled off to <br /> the nearest County approved landfill site. <br /> Measurement and Payment <br /> No unit measurement for payment will be made for Item 3. A lump sum bid for drainage <br /> construction will be reflected under Item 3 of the Bid Schedule. The price bid will include all of the <br /> Contractor's cost of whatever nature to provide a drainage channel in accordance with the drawing <br /> and specifications, including all labor, equipment, excavation, hauling, regrading, operating <br /> supplies, salaries of operators and any other expenses incidental to the operation of the equipment <br /> in the performance of the channel construction in accordance with this specification and bid item. <br /> 8 <br />