7884

• UCREFRP Catalog Number: 7884
• Author: Hydrosphere Resource Consultants.
• Title: Reconnaissance Evaluation of Yampa River Diversion Structures.
• USFW Year: 1995.
• USFW - Doc Type: Boulder, CO.
• Copyright Material: NO

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TABLE OF CONTENTS
CHAPTER 1 - INTRODUCTION
BACKGROUND ..................................................................................... 1-1
Hydrologic Setting ................................................................................ 1-1
Endangered Species .............................................................................. 1-1
Diversion Structures .............................................................................. 1-4
PROBLEM STATEMENT ......................................................................... 1-4
OBJECTIVES OF STUDY ......................................................................... 1-5
City of Craig Municipal Diversion ............................................................ 1-6
CHAPTER 2 - INVENTORY AND FIELD RECONNAISSANCE
INITIAL INVENTORY ............................................................................ 2-1
INITIAL FIELD RECONNAISSANCE ......................................................... 2-4
SECOND FIELD RECONNAISSANCE ........................................................ 2-5
DETAILED SITE SURVEYS ..................................................................... 2-6
CHAPTER 3 - EVALUATION OF DIVERSION STRUCTURES
DESCRIPTION OF STRUCTURES EXAMINED IN FIELD .............................. 3-1
Marshall-Roberts Ditch .......................................................................... 3-1
Colorado Utilities Ditch and Pipeline (Hayden Generating Station) ..................... 3-1
Williams Ditch ..................................................................................... 3-2
Walker Irrigating Ditch .......................................................................... 3-2
Shelton Ditch ...................................................................................... -
3-
Cary Ditch ..........................................................................................
3-
Brock Ditch ........................................................................................
Deep Cut Ditch .................................................................................... -
3-4
City of Craig Diversion ..........................................................................
Mack Ditch ......................................................................................... -
Lowry Seely Pump ............................................................................... 3-4
Henry Sweeney Ditch ............................................................................ 3-5
K. Diamond/Patrick Sweeney Ditch ........................................................... -
Old Sweeney Ditch ............................................................................... 3-5
3-
Maybell Canal .....................................................................................
GENERAL OBSERVATIONS ON DIVERSION STRUCTURES ......................... 3-6
PROBLEMATIC DIVERSION STRUCTURES ............................................... 3-7
Structures Within Designated Critical Habitat ............................................... 3-7
Structures Upstream of Designated Critical Habitat ....................................... 3-9
CHAPTER 4 - MITIGATION AND MODIFICATION ALTERNATIVES
CLASSIFICATION OF DIVERSION STRUCTURES ....................................... 4-1
Streambank Structures ........................................................................... 4-1
Temporary Instream Structures ................................................................ 4-1
Permanent Instream Structures ................................................................. 4-2
STRUCTURE MODIFICATION ALTERNATIVES ......................................... 4-2