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<br />NOTES: <br /> <br />. The channel width upstream is probably stable but <br />downstream may widen slightly (the new bridge is 77.42 m <br />[254 feet] wide). <br /> <br />3. Several of the qualitative analysis techniques presented in Lesson <br />2 can be used to evaluate channel response to change. The use of <br />the following techniques will be illustrated in the Lesson 6 workshop: <br /> <br />. <br /> <br />Lane relationship (see HEC-20, pp, 24-26) <br /> <br />. <br /> <br />Slope-discharge relationship (see HEC-20, pp, 18-21) <br /> <br />4.14 <br />