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<br />D. <br /> <br />, <br /> <br />r <br /> <br />Develop DisplaylEducational Materials <br /> <br />e <br /> <br />1) Review Historic Aerial Photographs <br />Review historic aerial photographs of the Roaring Fork and Fryingpan River <br />corridors from various sources. By comparative analysis, determine what changes <br />have taken place over time in streambed location, stream stability, riparian <br />vegetation and other elements of the river corridors. Develop displays using the <br />photographs to illustrate trends, changes, relationships and hazards. <br /> <br />2) Develop Computer Modeling <br />Develop a computer model of for evaluating the effects of stream stability <br />mitigation measures. Represent on the computer rnodel the predicted effects of <br />various stream stability mitigation measures, including modeling the "after-flood" <br />floodplain, to demonstrate how recommended mitigation measures and the stream <br />channel they are designed to protect will fare in a 100-year or SOO-year flood. <br /> <br />3) Develop Graphic Demonstration of River Flow <br />Develop a display illustrating the amount of water in the Roaring Fork River <br />under low flow conditions. The display would show the effects of various <br />diversions and return flows on river flows from the river's source to its <br />confluence with the Colorado River. <br /> <br />e <br /> <br />-- <br /> <br />e <br />