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suitabilities as flows exceeded those corresponding to the maximum WUA value at FPR- <br />LG (Figures 28 and 29). <br />As with the other sites, pool habitat acts as refuse habitat (Figure 30). Maximum pool <br />depth was 0.67 in (2.2 ft) at 1.13 m3/s (40 ft3/s). <br />Spawning suitabilities were high in riffle and shallow run habitats at FPR-LG. Maximum <br />spawning WUA occurred at a discharge of 3.06 in 3/S (108 ft3/s). The pool control cross <br />section (T2) provides high quality spawning habitat at this flow, with an average depth <br />and velocity of 0.29 in (0.95 ft) and 0.56 m/s (1.83 ft/s), respectively. Artificial redds <br />were placed at the pool-riffle interface during the spawning study. Natural redds and <br />active brown trout spawning were observed within 1 in of this cross section. <br />At riffle cross section T 1 at FPR-LG lower, wetted perimeter remained very stable until <br />flows dropped below 2.27 in 3/S (80 ft3/s) (Figure 22). At the run cross section at FPR-LG <br />upper (Figure 31), the wetted perimeter inflection point was around 3.40 in 3/S (120 ft3/s). <br />Appendix A shows the upper and lower FPR-LG sites at four different flow levels <br />(Figures A8-A13). <br />Overall, adult habitat increased post-dam construction at site FPR-LG (Figures 32 and <br />33). Brown and rainbow trout adult habitat was significantly higher during late summer <br />through baseflow period in post-dam as compared to pre-dam conditions. Juvenile <br />habitat was similar between pre- and post-dam conditions. <br />The IFIM site on the Roaring Fork River (RFR-TF) had a higher suitability for rainbow <br />trout habitat than brown trout habitat. Most maximum WUA values occurred at flows <br />less than 8.55 m3/s (302 ft3/s) (Figures 34 and 35). <br />Draft Final Report, Fryingpan and Roaring Fork Rivers February 12, 2003 <br />Miller Ecological Consultants, Inc. Page 36