WSPP287

• 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: 12/1/2004
• Author: DOI-BOR
• Title: Final Environmental Assessment and Finding of No Significant Impact - RE- Providing Endangered Fish Passage at the Price-Stubb Diversion Dam on the Colorado River - 12-01-04
• Water Supply Pro - Doc Type: Report/Study

001051

Ute Water Conservancy District Pump Plant-Spring Flooding ................................. 30

Recreation Resources.................................................................................................... 31

Public Safety......................... .... ............... ....... ..... ..... ... .............. ......... .... ....... ........... .... 36

Land and Facility Resources ..... ................................ ........... ............. .... ..... ........... ........ 38
Protecting Existing Structures.......... ......... ......... .............. ......... ........ .............. ...... .... 38
Railroad and Landslide Stability........ .... .... ...... .................... ............... ......... ........ ... ...... 41

Ownership of Dam and Lands..... ......... ........... ........ .... ........ ............ ........ .......... ........... 44

Unique Geographic Features.................. .......... ........... ......... .................. .... ................... 47
Floodplain and Wetland Protection .............................. ............................................ 47
Fish and Wildlife Resources. ............... ........ ................................ ....... .......... ...... .......... 49
Effects on Endangered Colorado River Fishes ............................................................. 50

Cultural Resources.. ..... ............... ................. .......... ........... ........ ............... ...... ....... ........ 53

Protect Historic Dam... .... ................. ........... ................... ............. ........ ................. ..... 53

Indian Trust Assets....................................................................................................... 55

Environmental Justice.............. .............. .......... .................... ........... ........ ....... ........ ....... 56

Social and Economic Factors...... ............ ............ ................ .......... .... ............. ... ... ......... 56

Hydropower.. ...... .............. ...... ......... ...... ...... ......... ........ ........ ............ ... ....... ..... ......... 56

Costs and Benefits.. ......... ..... ............ ............ ..................... ..... ............. ................. ..... 57

Cumulative Impacts ............ ..... ..... .... ......... ................. ... ... ... ........... ........ ......... ........ ..... 59

Summary and Mitigation Measures.............................................................................. 60
CHAPTER 4-C ON SUL T ATION AND COORDINATION .........................................63
Plan Formulation and Public Scoping Activities.......................................................... 63
Public Comment of Revised Supplement Draft EA ..................................................... 65
Consultation with other Agencies................................................................................. 81

Distribution List............................................................................................................ 81

REFERENCES CITED..................................................................................................... 83

List of Figures

Figure I-Price-Stubb Diversion Dam on the Colorado River near Palisade, Colorado...... 1
Figure 2-Redlands Conventional Fish Ladder on the Gunnison River, Colorado.............. 8
Figure 3-Conceptual Design for Conventional Fish Ladder............................................... 9
Figure 4-Hogback Diversion Dam Rock Fish Passage on the San Juan River, New

Mexico.................................................. ...... ......... ... ... ... ... ........ ... .... .... ...... ................ 12

Figure 5-Public Service Company of New Mexico Diversion Dam Rock Fish Passage on
the San Juan River, New Mexico.............................................................................. 13
Figure 6- Downstream Rock Fish Passage Conceptual Drawing ..................................... 14
Figure 7-Downstream Rock Fish Passage with Whitewater Features Conceptual Drawing

..................................................................... ........................................... ............ ....... 17

Figure 8-Dam Removal Conceptual Design Drawing ......................................................20
Figure 9-Potential Boating "Put-in" & "Take Out" Sites Near the Price Stubb Diversion

Dam. ......................... ................................................................................................. 33

Figure 10-River Velocities at lOG-year flood (44,500 cfs) ............................................40
Figure II-River Velocities at 10,500 cfs ..........................................................................41

IV