Management Strategy Files

Chapter 1 presents general information about the location of the project area, background about the project process, and descriptions of past and present projects that are related to the Bypass.

Chapter 2 presents a description of existing conditions in the Bypass, with an emphasis on existing land and water uses and historic and recent flood flow and low-flow hydrologic data.

Chapter 3 describes several “assurances” and related issues that landowners need addressed to feel more comfortable about considering habitat-related land use changes in the Bypass.

Chapter 4 presents a set of realistic habitat recommendations prepared by the Yolo Bypass Working Group (Working Group), including an analysis of habitat benefits, ways in which such ideas could match with CALFED’s targets and actions, and constraints that could prevent implementation of such recommendations. Chapter 5 presents conclusions and recommendations of several technical studies that will likely be necessary to achieve future implementation of potential habitat enhancement ideas.

Figures Return to main text 1-1 Project Location (5.4 MB) 1-2 Map of the Sacramento River Flood Control Project (137 k) 1-3 Proposed North Delta National Wildlife Refuge -- 12,300 acres (122 k) 2-1 Landforms of the Yolo Basin Study Area, Indicated by Soil Type (587 k) 2-2 Soil Types (1.9 MB) 2-3 Hydric Soils (1.2 MB) 2-4 Northern Portion of the Yolo Bypass (135 k) 2-5 Southern Portion of the Yolo Bypass (193 k) 2-6 Periods of Yolo Bypass Inundation at Lisbon Gage, 1935-1999 (43 k) 2-7 Duration and Maximum Stage of Inundation at Lisbon Gage during 1935-1999 (28 k) 2-8 Relationship of Maximum Stage to Duration of Inundation at the Lisbon Gage, 1935-1999 (25 k) 2-9 Annual Unimpaired Runoff in the Sacramento Valley (4-Rivers Index) during 1906-1999 (22 k) 2-10 Relationship between Yolo Bypass Inundation and Sacramento Valley Unimpaired Runoff, 1935-1999 (34 k) 2-11 Annual Maximum Daily Flows at Fremont and Sacramento Weirs and Duration of Yolo Bypass Inundation during Water Years 1935-1999 (28 k) 2-12 Annual Maximum Daily Flows in Putah and Cache Creeks and Duration of Yolo Bypass Inundation during Water Years 1935-1999 (29 k) 2-13 Periods of Overflow of the Fremont Weir, 1935-1999 (43 k) 2-14 Hydrographs of Yolo Bypass Inflows and Stage at Lisbon Gage under Wet Conditions during Water Years 1995-1998 (206 k) 2-15 Hydrographs of Yolo Bypass Inflows and Stage at Lisbon Gage under Wet Conditions during Water Years 1995-1998 (Expanded Scale) (261 k) 2-16 Hydrographs of Yolo Bypass Inflows and Stage at Lisbon Gage under Dry Conditions during Water Years 1987-1990 (195 k) 2-17 Cache Creek Flow and Lisbon Gage Stage during Water Year 1998 (127 k) 2-18 Effect of Cache Creek Runoff Events on Stage at Lisbon Gage in Years without Fremont Weir Spills (20 k) 2-19 Relationship of Fremont Weir Spill to Sacramento River Flow at Verona (75 k) 2-20 Daily Flows in Colusa Basin Drain at Highway 20 and the Outlet Gate to the Sacramento River during Water Year 1996 (44 k) 4-1 Yolo Bypass Habitat Opportunities and Constraints, Chapter 4 Organization (19 k) 4-2 Conceptual Tailwater Pond Plan and Section (47 k) In order to view these files, you will need Adobe Reader. Adobe Reader is free software that allows everyone from business professionals to home users to easily and reliably view, print, and search PDF files using a variety of platforms and devices.