WSPC179

• File Number: 8240.200.49.J
• Description: Colorado River Threatened-Endangered - RIPRAP - Price-Stubb Fish Passage - Environmental Studies
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 4/1/1999
• Author: DOI-BOR
• Title: Draft Environmental Assessment - RE- Providing Fish Passage at the Price-Stubb Diversion Dam on the Colorado River - 04-01-99
• Water Supply Pro - Doc Type: Report/Study

001533

CONTENTS

Floodplain and Wetlands Protection ..,.."........................... 36
Fish and Wildlife Resources .....,.......,.,...,....................,..... 36
Effects on Endangered Colorado River Fishes ..........,.........,.....37

Cultural Resources . . . . . . . . . . . . , . . , . , . . . . . , . , , . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Protect Historic Dam .....,....................................,... 41

Indian Trust Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . 44

Environmental Justice ..,.........,......................................44
Social and Economic Factors. . . . . , . . . . . . . , . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Hydropower . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . 44

Costs and Benefits ......,.....................................,... 45
Summary and Mitigation Measures , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

CHAPTER 4 - CONSULTATION AND COORDINATION ,......................... .49
Plan Formulation and Public Scoping Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Consultation with other Agencies ....................................,..... 52

REFERENCES CITED .............................,.......................... 53

APPENDIX A - DISTRIBUTION LIST. . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . .. A-I

FIGURES

Price-Stubb Diversion Dam Vicinity Map . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Frontispiece Map
Figure 1 - Price-Stubb Diversion Dam on the Colorado River near Palisade, Colorado . . . . . . . . 1
Figure 2 - Conceptual Design for Fish Ladder with Hydropower Plant .................... 9
Figure 3 - Conceptual Design for Dam Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 4 - Cross-section view of Price-Stubb Diversion Dam. , . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 5 - River velocity at 44,500 cfs . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 6- River velocity at 10,500 cfs . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 7 - Landslide location map . . . . . , . . . . . . . . . . . . . . . . . . . . . , . . . . . . , . . . . . . . . . . . . . 32

TABLES

Table 1 - Summary Comparison of Alternatives. . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . , . . .47

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