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Chaplain Gap Timber Sale <br /> • On embankments. <br /> • On slopes greater than 40%. <br /> • Within the operational area for cable landings where debris may shift or roll. <br /> • On locations where brush will fall into the ditch or onto the road surface. <br /> • Against standing timber. <br /> 3-24 BURYING ORGANIC DEBRIS RESTRICTED:Organic debris shall not be buried unless otherwise stated <br /> in this plan. <br /> 3-25 SCA 1"1'ERING ORGANIC DEBRIS:Organic debris shall be scattered outside of the clearing limits in <br /> natural openings unless otherwise detailed in this road plan. <br /> SECTION 4-EXCAVATION <br /> 4-2 PIONEERING: Pioneering shall not extend past construction that will be completed during the current <br /> construction season.Pioneering shall not extend more than 500 feet beyond completed construction unless <br /> approved in writing by the Contract Administrator. In addition, the following actions shall be taken as <br /> pioneering progresses: <br /> • Drainage shall be provided on all uncompleted construction. <br /> • Road pioneering operations shall not undercut the final cut slope or restrict drainage. <br /> • Culverts at live stream crossings shall be installed during pioneering operations prior to embankment. <br /> 4-3 ROAD GRADE AND ALIGNMENT STANDARDS: The following road grade and alignment standards <br /> shall be followed: <br /> • Grade and alignment shall have smooth continuity,without abrupt changes in direction. <br /> • Maximum grade shall not exceed 18 percent favorable and 15 percent adverse. <br /> • Minimum curve radius is 50 feet at centerline. <br /> • Sag vertical curves shall not have a grade change greater than 5%in 100 feet. <br /> • Crest vertical curves shall not have a grade change greater than 4%in 100 feet. <br /> 4-5 CUT SLOPE RATIO:Excavation slopes shall be constructed no steeper than shown on the following table: <br /> Excavation Excavation <br /> Material Type Slope Slope <br /> Ratio Percent <br /> Common Earth(on side slopes to ° <br /> 55%) 1:1 100%Fractured or Loose Rock '/2:1 200% <br /> Hardpan or Solid Rock '/4:1 400% <br /> 4-6 EMBANKMENT SLOPE RATIO: Unless construction staked or designed embankment slopes shall be <br /> constructed no steeper than shown on the following table: <br /> Material Type Embankment Embankment <br /> Slope Ratio Slope Percent <br /> Sandy Soils 2:1 50% <br /> Common Earth and Rounded 1'/z:l 67% <br /> Gravel <br /> Angular Rock 1'/4:1 80% <br />