9457

• UCREFRP Catalog Number: 9457
• Author: Ptacek, J. A., D. E. Rees and W. J. Miller.
• Title: A Study of the Ecological Processes on the Fryingpan and Roaring Fork Rivers Related to Operation of Ruedi Reservoir.
• USFW Year: 2003.
• USFW - Doc Type: Fort Collins.
• Copyright Material: NO

List of Figures
Figure 1. Satellite image of Roaring Fork and Fryingpan valleys from Carbondale
upstream to Ruedi Reservoir ....................................................................................... 3
Figure 2. Satellite image of Roaring Fork River study area and sampling site
(Macroinvertebrates: red, IFIM: yellow) .................................................................... 4
Figure 3. Satellite image of Fryingpan River study area from Ruedi Reservoir
downstream to below Downey Creek (Macroinvertebrates: red, IFIM: Artificial
Redds: purple) ............................................................................................................. 5
Figure 4. Satellite image of Fryingpan River study area from Downey Creek to Basalt
(Macroinvertebrates: red, IFIM: yellow, Artificial Redds: purple) ............................ 6
Figure 5. Average daily discharge for Fryingpan River at Ruedi Dam (USGS gage
09080400) and Roaring Fork River (USGS gage 09080100) during water years 1999
through 2002. Data from WY 2002 is provisional .................................................... 8
Figure 6. Site FPR-HG on the Fryingpan River, August 2001, at 6.77 in 3/S (239 ft3/s).
Reported discharge is from USGS gaging station 09080400 ................................... 10
Figure 7. Site FPR-LG upper on Fryingpan River, August 2001, 6.77 m3/s (239 ft3/s).
Reported discharge is from USGS gaging station 09080400 ................................... 11
Figure 8. Site FPR-LG lower on Fryingpan River, August 2001, at 6.77 in 3/S (239 ft3/s ).
Reported discharge is from USGS gaging station 09080400 ................................... 11
Figure 9. Site FPR-BP on the Fryingpan River, August 2001, at 6.77 m3/s (239 ft3/s).
Reported discharge is from USGS gaging station 09080400 ................................... 12
Figure 10. Site RFR-TF on the Roaring Fork River, June 2001, 24.81 m3/s (876 ft3/s).
Reported discharge is from USGS gaging station 09081000 ................................... 13
Figure 11. Aerial view of FPR-LG lower with transect placement and location of
artificial redd construction ........................................................................................ 15
Figure 12. Aerial view of FPR-LG upper with transect placement ................................. 15
Figure 13. Aerial view of Pruessing property with location of artificial redd construction.
................................................................................................................................... 20
Figure 14. Artificial redds at Palm property .................................................................... 20
Figure 15. Artificial redds at Pruessing property ............................................................. 21
Figure 16. Freeze core sampler setup .............................................................................. 22
Figure 17. Figure of ice flow results Roaring Fork River looking downstream toward
Fryingpan River confluence. Ice remnants can be seen along right bank of river... 25
Figure 18. Weighted usable area (m2 per km) for brown trout versus discharge (m3/s) for
FPR-BP ..................................................................................................................... 29
Figure 19. Weighted usable area (m2 per km) for rainbow trout versus discharge (in 3/S)
for FPR-BP ................................................................................................................ 29
Figure 20. Bed profile and modeled water surface elevations for run cross section at
FPR-BP. Elevation is relative elevation based on a vertical base of 100 m............ 30
Figure 21. Bed profile and modeled water surface elevations for pool cross section at
FPR-BP. Elevation is relative elevation based on a vertical base of 100 m............ 30
Figure 22. Wetted perimeter (m) as a function of discharge (m3/s) for all sites on the
Fryingpan River. Inflection point is denoted by square ........................................... 31
Figure 23. Weighted usable area (m2 per km) for brown trout versus discharge (m3/s) for
FPR-HG .................................................................................................................... 32
Draft Final Report, Fryingpan and Roaring Fork Rivers February 12, 2003
Miller Ecological Consultants, Inc. Page ii