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Upper Chewaucan Watershed Assessment

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Upper Chewaucan Watershed Assessment This project was financed in part by the Governorís Watershed Enhancement Board (GWEB) administered by the USDA Forest Service and the Upper Chewaucan Watershed Council Edited by CJ Peets GIS Illustrations by Michele Reba, USDA Forest Service Graphics/layout by Stevie Ruda, USDA Forest Service Stream Type Illustrations from Dave Rosgen Acknowledgments The authors have numerous people to thank for their support in completing this project, but none more than CJ Peets whose endless hours of editing made this a much more readable document. Special thanks to the watershed assessment survey crew, a team that was dedicated to making the assessment and goals of the council a success: Michele Reba, Chad Hermandorfer, Karen Youngblood, Tim Sundlov, Will Cornwell, and Genoveva McCaig. Additional thanks to Michelle Reba for sitting many days in front of a computer screen producing GIS illustrations to meet our changing desires. Also, special thanks to Stevie Ruda for her artistic ability in the formatting and presentation of this document. We would also like to thank Dave Rosgen for allowing us to use the stream type illustrations from his 1996 book titled ìApplied River Morphology.î And thanks to the following people for their edits and insights: Martin Murphy, Kent Clark, John OíLeary, John Merwin, Lee Fledderjohannóall members of the Upper Chewaucan Watershed Council; Fremont National Forest employees, Clay Speas, Mike Montgomery, Bill Aney, and Rob MacWhorter; Michelle Friedrichsen and Lincoln Eckman. The following individuals deserve acknowledgments for their support in helping the Council meet its goals and objectives: Max Corning, National Resource Conservation Service; Antonio Bentivoglio and Ron Rhew, US Fish and Wildlife Service; Monty Montgomery, Izaak Walton League; Dr. Rick Miller, Oregon State University, Eastern Oregon Agricultural Experiment Statio; National Riparian Team; Stuart Otto, Oregon Department of Forestry; John Zauner, Oregon Department of Fish and Wildlife; Oregon Ranchers ìDocî and Connie Hatfield; Roger King; Rod Stewart; and many others. Finally, thanks to Rick Craiger of GWEB for his support and flexibility concerning the completion of this docu- ment. Upper Chewaucan Watershed Assessment Scott Peets Upper Chewaucan Watershed Council Coordinator (March 1995 - August 1999) North Zone Fishery Biologist Fremont National Forest Tom Friedrichsen Current Upper Chewaucan Watershed Council Coordinator North Zone Hydrologist Fremont National Forest USDA Forest Service, Paisley Ranger District P.O. Box 67 Paisley, OR 97636 (541) 943-3114 September 1999 Table of Contents CONTENTS Page CHAPTER 1 INTRODUCTION ........................................................................................................................................... 1 Reference Map ........................................................................................................................................ 5 Ownership Map....................................................................................................................................... 7 CHAPTER 2 HYDROLOGICAL PROCESSES................................................................................................................... 9 Climate .................................................................................................................................................... 9 Soils .................................................................................................................................................. 10 Riparian Area ........................................................................................................................................ 10 Key Questions ........................................................................................................................................11 CHAPTER 3 DESIRED CONDITIONS ............................................................................................................................. 13 Uplands ................................................................................................................................................. 15 Upland/Forest Vegetation ............................................................................................................... 15 Road Density, Location, and Drainage Network ............................................................................ 17 Riparian Vegetation and Channel Types................................................................................................ 18 Riparian Vegetation and Associated Bank Stability ........................................................................ 18 Rosgen Stream Types and Associated Width/Depth ....................................................................... 18 Habitat Elements ................................................................................................................................... 39 Large Woody Debris (LWD) .......................................................................................................... 39 Pools ............................................................................................................................................... 40 Spawning Gravel Fines ................................................................................................................... 40 Stream Temperature ....................................................................................................................... 41 Fish Passage (Culverts) ................................................................................................................... 41 Redband Trout Viability ........................................................................................................................ 42 CHAPTER 4 CURRENT CONDITIONS AND RECOMMENDATIONS ........................................................................ 45 Stream Inventory Methodology ............................................................................................................ 45 Bear Creek Subwatershed ................................................................................................................... 47 Uplands ........................................................................................................................................... 47 Upland/Forest Vegetation ......................................................................................................... 47 Road Density, Location, and Drainage Network ...................................................................... 48 Riparian Vegetation and Channel Types ......................................................................................... 48 Riparian Vegetation and Associated Bank Stability .................................................................. 48 Rosgen Stream Types ............................................................................................................... 49 Fish Habitat Elements ..................................................................................................................... 49 Large Woody Debris (LWD) .................................................................................................... 49 Pools ......................................................................................................................................... 50 Spawning Gravel Fines ............................................................................................................. 50 Stream Temperature ................................................................................................................. 50 Fish Passage (Culverts) ............................................................................................................. 51 Redband Trout Viability .................................................................................................................. 51 Bear Creek Subwatershed Maps ..................................................................................................... 53 Figure 4.1 - Bear Creek Subwatershed Upland Vegetation ...................................................... 53 Figure 4.2 - Bear Creek Subwatershed Road Locations .......................................................... 55 Figure 4.3 - Bear Creek Subwatershed Reach and Monitoring Locations .............................. 57 Coffeepot Creek Subwatershed ........................................................................................................... 59 Uplands ........................................................................................................................................... 59 Upland/Forest Vegetation ......................................................................................................... 59 Road Density, Location, and Drainage Network ...................................................................... 60 Riparian Vegetation and Channel Types ......................................................................................... 60 Riparian Vegetation and Associated Bank Stability .................................................................. 60 Rosgen Stream Types ............................................................................................................... 61 Fish Habitat Elements ..................................................................................................................... 62 Large Woody Debris (LWD) ...................................................................................................
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