8157

• UCREFRP Catalog Number: 8157
• Author: Pitlick, J., M. V. Steeter, B. Barkett, R. Cress and M. Franseen.
• Title: Geomorphology and Hydrology of the Colorado and Gunnison Rivers and Implications for Habitats Used by Endangered Fishes.
• USFW Year: 1999.
• USFW - Doc Type: \
• Copyright Material: NO

LIST OF TABLES
Table 1. Information on gauging stations used to evaluate long-term trends in streamflow of
the Colorado River and selected regulated and unregulated tributaries ............................... 7
Table 2. General characteristics of flow modeling sites ............................................... 13
Table 3. Number of days that the Colorado River exceeded specific flow thresholds at the
Cameo gauging station in each of four separate 15-year periods ...................:................. 21
Table 4. Comparison of average peak discharge, mean annual discharge, and suspended
sediment loads of the Colorado River and the Gunnison River for different time periods ........ 25
Table 5. Results of analysis of 1937 and 1993 aerial photographs of the Colorado River ........ 28
Table 6. Results of analysis of 1954 and 1968 aerial photographs of the Colorado River ....... 30
Table 7. Results of analysis of 1937 and 1995 aerial photographs of the Gunnison River ...... 30
Table 8. Discharges and durations of flows that exceed sediment transport thresholds at
individual study sites ...................................................................................... 40
Table 9. Frequencies of flows that have exceed sediment transport thresholds in specific
reaches in the last 5 to 20 years .......................................................................... 46
Appendix Tables
Table A-1. Summary of Surface Sediment Data for the Colorado River ......................... A-1
Table A-2. Summary of Subsurface Sediment Data for the Colorado River ..................... A-1
Table A-3. Summary of Surface Sediment Data for the Gunnison River ........................ A-2
Table A-4. Summary of Subsurface Sediment Data for the Gunnison River .................... A-2
Table A-5. Results of GIS Analysis of Channel Change on the Colorado River, 1937-93..... A-3
Table A-6. Results of GIS Analysis of Channel Change on the Colorado River, 1954-68..... A-4
Table A-7. Results of GIS Analysis of Channel Change on the Gunnison River, 1937-95.... A-5
Table A-8. Hydraulic Geometry Data for the Colorado River ..................................... A-6
Table A-9. Hydraulic Geometry Data for the Gunnison River .................................... A-7
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