Evaluating Stream Restoration Projects in the Sprague River Basin
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Evaluating Stream Restoration Projects in the Sprague River Basin Prepared for: Klamath Watershed Partnership, in conjunction with the Klamath Tribes, the U.S. Fish and Wildlife Service, the Klamath Basin Rangeland Trust, Sustainable Northwest, and The Nature Conservancy Prepared by: NewFields River Basin Services & Dr. G. M. Kondolf September 2012 Evaluating Stream Restoration Projects in the Sprague River Basin Acknowledgements This report is the result of the coordinated efforts of a large team committed to improving stream restoration practices in the Upper Klamath Basin and would not have been possible without the valuable contributions of Ruth Olsen, Sue Mattenberger, Matt Barry, Damion Ciotti, Hoda Sondossi, and Jared McKee of the U.S. Fish and Wildlife Service; Ginnie Monroe, Dannette Watson, Katharine Jackson, and Nathan Jackson of the Klamath Watershed Partnership; Shannon Peterson of the Klamath Basin Rangeland Trust; Craig Beinz and Mark Stern of The Nature Conservancy; Carolyn Doehring, Zan Rubin, and Rashmi Sahai of the University of California, Berkeley; Larry Dunsmoor of the Klamath Tribes; Michael Hughes of the Oregon Institute of Technology; Roger Smith of Oregon Department of Fish and Wildlife; local landowners on the Advisory Committee; and all of the private landowners who so graciously provided access to their property. Funding for this project was provided by the Oregon Watershed Enhancement Board (OWEB) and administer by the Klamath Watershed Partnership. i Evaluating Stream Restoration Projects in the Sprague River Basin Table of Contents Acknowledgements ........................................................................................................................................ i Table of Contents .......................................................................................................................................... ii Figures .......................................................................................................................................................... vi Tables ..........................................................................................................................................................xiii Executive Summary ..................................................................................................................................... xiv 1 Introduction .......................................................................................................................................... 1 1.1 Purpose ......................................................................................................................................... 1 2 Project Setting ....................................................................................................................................... 2 2.1 Location ......................................................................................................................................... 2 2.2 Geology ......................................................................................................................................... 3 2.3 Hydrology ...................................................................................................................................... 4 2.4 Geomorphology ............................................................................................................................ 7 2.5 Land Cover .................................................................................................................................. 10 3 Sprague River Post Project Appraisal Framework and Conceptual Models ....................................... 14 3.1 Organizational Framework .......................................................................................................... 14 3.2 Conceptual Models ..................................................................................................................... 20 3.2.1 Conceptual Models for Sprague River Corridor Restoration .............................................. 20 4 Sprague River Basin Post-Project Appraisal Methods ........................................................................ 34 4.1 Post-Project Appraisal Overview ................................................................................................ 34 4.2 Field Methods ............................................................................................................................. 39 4.2.1 Cross-Sections ..................................................................................................................... 40 4.2.2 Longitudinal Profiles ........................................................................................................... 40 4.2.3 Photographic Monitoring Stations ...................................................................................... 41 4.2.4 Bank Erosion Assessments .................................................................................................. 41 4.2.5 Greenline Surveys ............................................................................................................... 41 4.3 Secondary Analyses ..................................................................................................................... 42 4.3.1 Aerial Photography Comparisons ....................................................................................... 42 4.3.2 Hydrology Considerations ................................................................................................... 43 4.3.3 In-Channel Structure Condition Assessments ..................................................................... 43 5 Post Project Appraisal (PPA) Project Selection ................................................................................... 44 ii Evaluating Stream Restoration Projects in the Sprague River Basin 5.1 Spatial Post Project Appraisal Management System (SPPAMS) ................................................. 44 5.2 Organization of Projects.............................................................................................................. 45 5.3 Final Project Selection ................................................................................................................. 46 6 Project Case Studies ............................................................................................................................ 50 6.1 Nine Mile Road Project – Sprague River Mainstem .................................................................... 50 6.1.1 PPA Synopsis ....................................................................................................................... 50 6.1.2 Site Conditions .................................................................................................................... 51 6.1.3 Success Criteria ................................................................................................................... 52 6.1.4 Project Timeline .................................................................................................................. 53 6.1.5 Relevant Conceptual Models .............................................................................................. 53 6.1.6 Post Project Appraisal ......................................................................................................... 54 6.1.7 PPA Lessons Learned ........................................................................................................... 62 6.2 Southside Levee Breach Project – Sprague River (Lower Watershed) ....................................... 64 6.2.1 PPA Synopsis ....................................................................................................................... 64 6.2.2 Site Conditions .................................................................................................................... 65 6.2.3 Success Criteria ................................................................................................................... 66 6.2.4 Project Timeline .................................................................................................................. 67 6.2.5 Relevant Conceptual Models .............................................................................................. 67 6.2.6 Post Project Appraisal ......................................................................................................... 68 6.2.7 PPA Lessons Learned ........................................................................................................... 74 6.3 Nimrod River Park Project – Sprague River (Lower Watershed) ................................................ 76 6.3.1 PPA Synopsis ....................................................................................................................... 76 6.3.2 Site Conditions .................................................................................................................... 77 6.3.3 Project Success Criteria ....................................................................................................... 78 6.3.4 Project Timeline .................................................................................................................. 79 6.3.5 Relevant Conceptual Models .............................................................................................. 80 6.3.6 Post Project Appraisal ........................................................................................................