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' IM71w7w Water Bar Installad n <br /> Berm tied 'I <br /> nto ,. <br /> embankment L. <br /> • f y I �I <br /> G -section <br /> ross <br /> I ft <br /> i +• I. <br /> 1 <br /> 5 f <br /> +1 <br /> r <br /> r ' <br /> ft <br /> Oft <br /> ft <br /> Figure ROAD-11 <br /> fable ROAD-2 <br /> Water Bar Spacing <br /> Grade Spacing between water bars <br /> r water diversion me ure <br /> 2 250 <br /> 5% 130 ft <br /> 10% 80 ft <br /> 15% 50 ft <br /> 25%+ 40 ft <br /> Selecting the correct spacing requires interpolating between the values <br /> given. For example, a 4% grade requires a spacing of 170 feet between <br /> water diversion structures.A 1 % grade requires a spacing of 62 feet <br /> between water diversion structures. <br />