7845

• UCREFRP Catalog Number: 7845
• Author: Miller, W. J. and D. Laiho.
• Title: Final Report, Upper Colorado River Basin Recovery Implementation Program, Feasibility Evaluation Of Non-Native Fish Control Structures.
• USFW Year: 1997.
• USFW - Doc Type: \
• Copyright Material: NO

1
2.2.3 Current Reservoir Operation and Fishery Management .................................................. 2-10
2.3 Fish Species Life History at Elkhead and Highline Reservoirs ............................................. 2-10
2.4 Overview of Specific Control Alternatives ............................................................................ 2-12
3. DESCRIPTION OF CONTROL ALTERNATIVE TECHNOLOGY AT ELKHEAD RESERVOIR......... 3-1
3.1 Selected Alternative for Full Exclusion at Elkhead Reservoir ............................................... .. 3-1
3.1.1 Biological Characteristics ................................................................................................
3.1.2 Engineering Characteristics ............................................................................................. .. 3-1
.. 3-1
3.2 Selected Alternative for Exclusion to Current Industry Practice ........................................... .. 3-6
3.2.1 Biological Characteristics ................................................................................................
3.2.2 Engineering Characteristics .................................................................. ........ .. 3-6
.. 3-6
3.3 No Action Alternative ............................................................................................................. 3-11
4. DESCRIPTION OF CONTROL ALTERNATIVE TECHNOLOGY AT HIGHLINE RESERVOIR....... .. 4-1
4.1 Selected Alternative for Full Exclusion at Highline Reservoir .............................................. .. 4-1
4.1.1 Biological Characteristics ................................................................................................ .. 4-1
4.1.2 Engineering Characteristics ............................................................................................. .. 4-1
4.2 Selected Alternative for Exclusion to Current Industry Practice ........................................... .4-6
4.2.1 Biological Characteristics ................................................................................................ .. 4-6
4.2.2 Engineering Characteristics ............................................................................................. .. 4-6
4.3 No Action Alternative ............................................................................................................. 4-10
5. SUMMARY OF IMPLEMENTATION ISSUES RELATED TO NON-NATIVE CONTROL
STRUCTURES ................................................................................................................................. .. 5-1
5.1 General Applicability of Control Structures at Reservoirs ....................................................... 5-1
5. 1.1 General Processes for Selection of Criteria and Control Technique for Effective Control of
Escapement ............................................................................................................................... .. 5-1
5.1.2 Knowledge of Escapement Potential and Effect to Downstream Receiving Water........
5.1.3 Management Options ....................................................................................................... .. 5-4
.. 5-5
5.1.4 Engineering Evaluation and Model Testing ..................................................................... . 5-5
5.1.5 Implementation of Control Option .................................................................................... 5-6
5.2 No Action .................................................................................................................................. 5-6
5.2.1 Escapement Potential .......................................................................................................... 5-7
5.2.2 Potential Downstream Effects ........................................................................................... 5-7
5.3 Full Exclusion .............. ........................................................................................................... 5-7
5.3.1 Control Structure Type .................................................................................................... .. 5-7
5.3.2 Effectiveness on Various Life Stages ................................................................................ 5-8
5.3.3 Effect on Reservoir Fishery ............. 5-8
5.3.4 Potential Downstream Effects .................................................................................:........ . 5-8
5.3.5 Estimated Costs ................................................................................................................
5.4 Exclusion to Current Industry Practice ................................................................................... . 5-8
.. 5-8
5.4.1 Control Structure Type ...................................................................................................... 5-9
5.4.2 Effectiveness on Various Life Stages ................................................................................ 5-9
5.4.3 Effect on Reservoir Fishery ............................................................................................... 5-9
5.4.4 Potential Downstream Effects .......................................................................................... . 5-9
5.4.5 Estimated Costs ...............................................................................................................
5.5 Conclusions ............................................................................................................................. 5-10
5-10
5.6 Recommendations ................................................................................................................... 5-10
6. LITERATURE CITED_._.. ........................................................................................................... 6-1
7. PERSONAL COMMUNICATION ................................................................................................ 7-1
8. ANNOTATED BIBLIOGRAPHY ............................................................................................... .. 8-1
Control Structure Feasibility Evaluation Vii
Miller Ecological Consultants, Inc., February 18, 1997