9363

• UCREFRP Catalog Number: 9363
• Author: Muth, R. T., L. W. Crist, K. E. LaGory, J. W. Hayse, K. R. Bestgen, J. K. Lyons, T. P. Ryan and R. A. Valdez.
• Title: Flow Recommendations for Endangered Fishes in the Green River Downstream of Flaming Gorge Dam.
• USFW Year: 1999.
• USFW - Doc Type: Lakewood.
• Copyright Material: NO

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Draft - Do Not Cite

May /999

LIST OF TABLES

Page

1.1 Studies Conducted in Support of the 1992 Biological Opinion on Operation
of Flaming Gorge Dam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-11

2.1 Projects Included in the Flaming Gorge Flow Recommendations Investigation. . . . . . . 2-4

3.1 Reservoirs of the Green River Basin ........................................ 3-4 i

3.2 Estimated 1998 Green River Depletions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . 3-5

3.3 United States Geological Survey Flow Gages in the Green River Basin and
Their Period of Record .................................................. 3-13

3.4 Percent Change in Average Monthly Flow Due to Regulation .......,........... 3-17

3.5 Probabilities of Exceedance for Regulated and Unregulated Flows at the
USGS Gages near Jensen and Green River, Utah, 1963-1996 . . . . . . . . . . . . . . . . . . . . 3-22

3.6 Percentage Reduction in Annual Peak Flows Due to Regulation at
Various Exceedance Values .............................................. 3-22

3,7 The Effect of Regulation on Mean Date of Peak Flow at USGS Gages on the

Green River. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

3.8 Mean Base Flows and Base-Flow Variability at the Jensen Gage From

1946 to 1996 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

3.9 Peak Flow Estimates for Existing Regulated Conditions on Major Tributaries
ofthe Green River Basin Below Flaming Gorge Dam . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

3.10 Modeled Within-Day Flow and Stage Changes at Greendale and Jensen under
1992 Biological Opinion Operations at Flaming Gorge Dam .................... 3-34

3.11 Measured Within-Day Flow and Stage Changes at Jensen, Ouray, and Green
River Under Different Flaming Gorge Dam Operations ........................ 3-35

3.12 Location of Temperature Monitoring Stations for the Green and Yampa Rivers. . . . . . 3-35

3.13 In-Channel Response of Sand Bars to Various Flood Levels. . . . . . . . . . . . . . . . . . . . . 3-52

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