9601

• UCREFRP Catalog Number: 9601
• Author: Montgomery Watson.
• Title: Yampa River Basin - Small Reservoir Study Phase 2 Report.
• USFW Year: 2000.
• USFW - Doc Type: Steamboat Springs, CO.
• Copyright Material: NO

A u#st 2000 CRWCD * Ymrpa Riser Basin Smd1 Re a %w Swdy - Plwe 2 Repat * TOC ? i
TABLE OF
CONTENTS
Section No. Page No.
1.0 INTRODUCTION ....................................................................................................................................1
1.1 GENERAL .............................................................................................................. ............................1
1.2 REPORT ORGANIZATION .................................................................................. ............................ 1

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2.1 GENERAL ........................
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2.1.1 Basin Hydrology ............................................................................................. ............................ 3
2.1.2 Water Use ....................................................................................................... ............................ 3
2.1.3 Recovery Program 6
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2.2 PHASE 1 SUMMARY . , g
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2.3 PHASE 2 SCOPE AND OBJECTIVES ...........................................................................................11
3.0 PRELIMINARY EVALUATION OF PHASE 2 POTENTIAL SMALL RESERVOIR SITES ..... 12
3.1 DEVELOPMENT OF FINAL LIST OF SMALL RESERVOIR SITES ................ .......................... 12
3.2 EVALUATION CRITERIA ............................................................................................................. 12
3.3 PHASE 2 POTENTIAL CANDIDATE SITES ...................................................... .......................... 12
3.4 PHASE 2 POTENTIAL SITES TO BE EVALUATED IN FURTHER DETAIL ............................13
3.5 SUMMARY OF YEAR 2000 FIELD RECONNAISSANCE SITES ............................................... 17
4.0 EVALUATION OF PHASE 2 POTENTIAL SMALL RESERVOIR SITES ..................................18
4.1 FIELD RECONNAISSANCE ................................................................................ .......................... 18
4.1.1 Introduction/Background ............................................................................... .......................... 18
4.1.2 General Procedures ....................................................................................... .......................... 18
4.1.2.1 Land Ownership ................................................................................................ ............................. 18
4.1.2.2 Mapping ............................................................................................................ ..............................18
4.1.2.3 General Reconnaissance ................................................................................... .............................. 22
4.1.2.4 Physical Characteristics/Dam Siting Evaluation ............................................... ..............................22
4.1.2.5 Ecological Evaluation ....................................................................................... ..............................22
4.1.3 Potential Small Reservoir Sites (Track I Sites) .............................................. .......................... 23

' 4.1.3.1 Little Bear 1 Reservoir Site (Site 41) ................................................................
4.1.3.2 Little Bear 2 Reservoir Site (Site 42) ................................................................ .............................. 23
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4.1.3.3 South Fork I Reservoir Site (Site 35) ............................................................... .............................. 28
4.1.3.4 South Fork 2 Reservoir Site (Site 36) ............................................................... .............................. 31

' 4.1.4 Potential Larger Reservoir Sites (Track 2 Sites) ....................................................................: 33
4.1.4.1 Rampart Reservoir Site (Site 37) .................................................................................................... 33
4.1.4.2 Monument Butte Reservoir Site (Site 72) ......................................................... ..............................36
4.1.5 Additional Sites Reviewed During Field Reconnaissance ........................................................ 38
' 4.1.5.1 Lower Freeman (Site 39) ..................................................................................
4.1.5.2 Dry Cottonwood Site (Site 40) .......................... . .............................. 38
4.1.5.3 Freeman Reservoir and Cove/Cove Lake Reservoirs (Site 71) ......................... .............................. 39
4.2 FORTIFICATION CREEK DISCUSSION ...................................................................................... 39
4.2.1 Landslides ...................................................................................................... .......................... 40
4.2.2 ErosionlSedimentation ................................................................................... .......................... 40
4.2.3 Geotechnical Recommendations .............................................................................................. 40

t 4.2.4 Call Structure ........................................................................................................................... 40
4.3 DATA REVIEW AND EVALUATION ........................................................................................... 41
4.4 RECOMMENDATIONS FOR FUTURE EVALUATIONS ................................. ........................... 42
' 5.0 SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS ..::.........::::..::::::::.:::::.::::..:::.:::::::::..44
5.1 PROJECT SUMMARY . . 44
5. L I Phase 1 ..................................................................................................................................... 44

' Maagaray Watson * A 0 Baas 774018 + Smvd rat Spnrg, Cdando 80477 + [phone]
W/w/031/r-2840
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