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<br />" <br /> <br />. <br />I <br /> <br />~ <br /> <br /> <br />TABLE 4 <br />STATE OF COLORADO <br />sTREAHBANK EROSION STUDY 1988 <br /> <br />SUMMARY OF PRACTICES <br />Streambank Proteetion Practices <br /> <br />" <br />I <br /> Cost per Expected <br /> Structural Practices Foot Life (vrs) O&M 1/ <br /> Rock Riprap 100 50 2 <br /> Anchored Trees 20 15 1 <br /> Rock Jetty 200 50 4 <br /> Jacks 10 40 3 <br /> <br />VeQetative Practices <br /> <br />~ <br /> <br />r <br /> <br />Vegetated Buffer Strips <br />Vegetative Sprig Revetment <br />Riparian Zone <br /> <br />10 <br />5 <br />2 <br /> <br />50 <br />50 <br />50 <br /> <br />2 <br />5 <br />5 <br /> <br />. <br /> <br /> <br />1/ O&M is expressed as a percentage of the original construction <br />cost. <br /> <br />41 <br />