Yuba River Fish Passage Improvement Investigation Final Report

April 2014 Gathard Engineering Consulting Yuba River Fish Passage Improvement Investigation Final Report National Marine Fisheries Service Investigation of Dam Removal and Fish Passage Conceptual Options at Englebright and Daguerre Point Dams, Yuba River, California National Marine Fisheries Service Final Report April 2014 Yuba River Fish Passage Improvement Investigation Report Tables of Contents Executive Summary ....................................................................................................................................... 1 Introduction .................................................................................................................................................. 3 Authorization ............................................................................................................................................ 4 Goals and Objectives ................................................................................................................................. 4 Design Criteria ....................................................................................................................................... 5 Examples and History of Development of Proposed Dam Removal Techniques ................................. 7 Scope ....................................................................................................................................................... 12 Background ................................................................................................................................................. 12 Water Use and Water Quality ................................................................................................................. 13 Hydrology ................................................................................................................................................ 14 Fisheries Downstream of Englebright Dam ........................................................................................ 15 Water Diversion .................................................................................................................................. 15 Description of Facilities ........................................................................................................................... 19 Englebright Dam.................................................................................................................................. 22 Daguerre Point Dam ............................................................................................................................ 26 Basis of Design and Analysis ....................................................................................................................... 28 Removal Sequence .................................................................................................................................. 28 Water Quality Associated with Reservoir Lowering ............................................................................... 29 Sediment Management ...................................................................................................................... 30 Options Developed ..................................................................................................................................... 32 Englebright Dam ..................................................................................................................................... 32 Daguerre Point Dam................................................................................................................................ 33 Complete Dam Removal Alternative ...................................................................................................... 35 Englebright Dam.................................................................................................................................. 36 Daguerre Point Dam ............................................................................................................................ 38 Upstream Water Diversion Facilities .................................................................................................. 39 Partial Englebright Dam Removal ........................................................................................................... 44 Remove to El. 460 – Improved Fish Passage Using Current Equipment at Operational Limits .......... 44 Remove to El. 430 – Fish Passage and Power Generation without Significant Sediment Release ..... 49 Retention of Daguerre Point Dam with Fish Passage Improvements ..................................................... 52 Rock Ramp .......................................................................................................................................... 52 Downstream Weirs ............................................................................................................................. 55 Full Height Gates ................................................................................................................................. 57 Cost Opinions .............................................................................................................................................. 59 Conclusions ................................................................................................................................................. 68 References .................................................................................................................................................. 71 GEC Yuba River Fish Passage Improvement Investigation Page i National Marine Fisheries Service Final Report April 2014 Yuba River Fish Passage Improvement Investigation Report Table of Figures Figure 1 Yuba River Hydrology Daily Average and Maximum Flows .......................................................... 14 Figure 2 Location of Surface Water Diversions near Daguerre Point Dam ................................................ 17 Figure 3 Browns Valley Pumped Diversion upstream of Daguerre Point Dam .......................................... 18 Figure 4 South Yuba- Brophy Irrigation Water Diversions near Daguerre Point Dam ............................... 18 Figure 5 Historic Yuba River Upstream of Daguerre Point Dam ................................................................ 19 Figure 6 Yuba River Basin in Yuba County .................................................................................................. 21 Figure 7 Facilities at Englebright Dam ......................................................................................................... 25 Figure 8 Complete Daguerre Point Dam Removal Stages ........................................................................... 39 Figure 9 Complete Daguerre Point Dam Removal Elements ...................................................................... 41 Figure 10 Detail of Diversion Dam Conceptual Arrangement..................................................................... 42 Figure 11 Section through Bypass Channel ................................................................................................. 42 Figure 12 Longitudinal Section through Diversion Channel ....................................................................... 43 Figure 13 Yuba River Elevation Upstream of Daguerre Point Dam ............................................................ 43 Figure 14 Fish Ladder and Lowered Dam at Elevation 460 ......................................................................... 47 Figure 15 Multi Use Facility and Fish Ladder Entrance ............................................................................... 48 Figure 16 Section through Fish Ladder near Switchback ............................................................................ 48 Figure 17 Reservoir Volume versus Elevation ............................................................................................. 50 Figure 18 Facilities Arrangement for Removal to Elevation 430 ................................................................ 51 Figure 19 Proposed Sediment Flushing Gates at Englebright Dam ............................................................ 51 Figure 20 Typical Ramp Section at Daguerre Dam ...................................................................................... 54 Figure 21 Plan View of Proposed Ramp at Daguerre Dam ......................................................................... 54 Figure 22 Plan View of Proposed Weirs at Daguerre Dam ......................................................................... 56 Figure 23 Section through Weirs ................................................................................................................ 56 Figure 24 Elevation of Weir ......................................................................................................................... 57 Figure 25 Section though Radial Gates proposed at Daguerre Dam .......................................................... 58 Figure 26 Plan View of Gates at Daguerre Dam .......................................................................................... 58 Figure 27 Overview of Complete Removal of Both Dams........................................................................... 62 Figure 28 Overview of Partial Removal to Elevation 460 with Fish Ladder Construction Schedule ........... 63 Figure 29 Overview of Partial Removal to Elevation 430 with Fish Ladder

Load more