Evaluation of Instream Flow Methods and Determination

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I!' 12 e Table 5. Hinimum flow recommendation using the multiple trans~ct (R-2 Cross) method.3 Av. Percent Cal. Recom. X veloc- Av. wetted , - Stream flow flow Sec. ity dl'pth peri- Transect name (ds) (ds) no. (ft/sl'c) (it) meter description Cache la Poudre R. , 15.7 21.4 1 1.83 0.60 41 Critical riffle Lit tle S. Fork 15.7 10.7 3 0.48 0.69 T'f Pools Av. 16.1 1.13 0.65 59 Carnero Creek, 1.7 1.3 1 0.61 0.24 86 Pool Eo cr it ical riffle South Fork 1.7 1.2 2 0.30 0.69 57 Pool (s tand ing) 1.7 2.9 3 2.32 0:20 50 Critical riftle & run Av. 1.8 1.20 (J.J3 64 Cucharas 7.9 4.4 1 1. 79 0.21 55 Critical riffle River 7.9 2.8 4 0.99 0.26 61 Lip oC rapids 7.9 5.5 7 1.07 0.46 74 Deep fast pool Av. 4.2 1. 23 0:Ji 63 Cunningham 18.0 4.5 2 0.97 0.39 78 Deep pool Creek 0.9 5.6 4 3.76 0.16 53 Critical riffle 18.0 2.3 4 1. 54 0.16 61 Critical riffle Av. 4.1 2.09 0.24 66 East River 76.5 63.2 5 0.85 0.,0 96 Critical riffle 76.5 37.7 6 o:3l 0.S1 67 Critical riffle Eo run Av. 50.5 o:8J 0:76 8~ Fryingpan River I 251. 0 61.0 1 1.43 0.61 91 Cr it ical riffle (Taylor Creek) 75.2 63.7 1 1.60 Q.:..~ 80 Critical riffle 255.0 53.3 2 1. 34 0.63 74 Deep riffle & run 251. 0 33.8 3 1. 31 9.6:\ 57 Shallow run & riffle 241. 0 51.1 4 1.72 1.00 50 De"p run e 75.2 56.3 4 1.07 1.20 70 Deep run Av. 53.3 1. 41 0.,9 70 Fryingpan River II 75.2 60.5 1 1.13 ~ 83 Critical riffle - spawning (Seven Castles) beds 75.2 76.7 2 1. 36 ~ 93 Spawn ins; riffle 75.2 49.9 3 0.71 0.90 36 Spawning riffle & deep run Av. 62.4 1.09 0.,0 89 Fryingpan River, 8.6 3.6 3 0.34 ~ 85 Pool ~orth Fork 8.6 5.5 4 1.13 0.4.'. 40 Deep run & riffle 8.6 6.1 5 0.65 O. ~6 75 Slow run 8.6 3.8 6 1.18 0.20 52 Critical riffle Av. 4.3 0.83 0.38 63 (,\typical) Fryingpan River, 11. 3 5.0 1 1.03 0.10 61 IHde critical riffle a South Fork 11. 3 5.4 2 0.36 o:bi 68 Pool and run i n.3 5 -, 4 0.60 O.!&4 53 Deep pool and run Av. 5.2 0.66 0."0 62 Gunnison River, 68.3 45.4 1 1. ~1 0.60 95 Crit ical riffle 1 Lake Fork 68.3 39.3 3 1.47 o.n 54 Rif fle & deep run '\ 68.3 72.4 5 2.40 O.!lo 70 Fast run ~ Av. 52.4 1.69 ~ 71 ;., ------------------------------------------------------------------------------------------------- i aUnderlined figure indicates the parameter that was ~ons id~red. the 1 i.m i.t i:l~ factor. i . ! l i i e ~ Ta" Hu< Ri- s" S" ~ 1 ! j --..