Table of Contents 1 - INTRODUCTION ........................................................................................................ 2 History ....................................................................................................................... 2 Project Purpose and Need ......................................................................................... 2 Project Description .................................................................................................... 3 Bridge Replacement .................................................................................................. 3 Roadway Approaches ............................................................................................... 7 Alisal Creek Realignment .......................................................................................... 7 Safety ........................................................................................................................ 7 Driveways .................................................................................................................. 9 Construction Schedule .............................................................................................. 9 Construction Phasing ................................................................................................ 9 Traffic Access and Detours ........................................................................................ 9 Construction Equipment and Staging ...................................................................... 11 Utility Rerouting ....................................................................................................... 11 Surface Water Dewatering ....................................................................................... 11 2 - STUDY METHODS .................................................................................................. 12 Regulatory Requirements ........................................................................................ 12 Federal Endangered Species Act ............................................................................ 12 Section 404 of the Clean Water Act ......................................................................... 12 Magnuson-Stevens Fishery Conservation and Management Act ............................. 12 Migratory Bird Treaty Act and Executive Order 13186 ............................................. 12 Executive Order 11988 – Floodplain Management .................................................. 13 Executive Order 11990 – Protection of Wetlands .................................................... 13 Executive Order 13112 - Invasive Species .............................................................. 13 California Endangered Species Act ......................................................................... 13 Section 401 of the Clean Water Act ......................................................................... 14 Section 1600 of the California Fish and Game Code ............................................... 14 Sections 3503 and 3503.5 of the California Fish and Game Code ........................... 14 Native Plant Protection Act ...................................................................................... 14 Senate Bill 857 (SB 857) - Fish Passage ................................................................. 15 Studies Required ..................................................................................................... 15 Literature Search ..................................................................................................... 15 Field Reviews .......................................................................................................... 16 Survey Methods ...................................................................................................... 16 Survey Dates and Personnel ................................................................................... 16 Agency Coordination and Professional Contacts ..................................................... 18 Limitations That May Influence Results ................................................................... 19 3 - RESULTS: ENVIRONMENTAL SETTING ............................................................... 19 Description of the Existing Biological and Physical Conditions ................................ 19 Physical Conditions ................................................................................................. 19 Biological Conditions in the Study Area ................................................................... 19 Habitat Connectivity ................................................................................................. 22 Regional Species and Habitats and Natural Communities of Concern ..................... 23 Hartnell Road Bridge Replacement Project NES(MI) i Table of Contents 4 - RESULTS: BIOLOGICAL RESOURCES, DISCUSSION OF IMPACTS, AND MITIGATION ........................................................................................................... 23 Habitats and Natural Communities of Concern ........................................................ 23 Discussion of Jurisdictional Waters ......................................................................... 31 Discussion of Invasive Species ............................................................................... 32 Special-Status Plant Species ................................................................................... 33 Discussion of Congdon’s Tarplant ........................................................................... 33 Special-Status Animal Species Occurrences ........................................................... 34 Dicussion of California Tiger salamander ................................................................ 34 Discussion of California Red-Legged Frog .............................................................. 36 Discussion of Western Burrowing Owl ..................................................................... 37 DIcussion of Tricolored Blackbird ............................................................................ 38 Discussion of Nesting Birds (Class Aves) ................................................................ 39 5 - CONCLUSIONS AND REGULATORY DETERMINATION ...................................... 40 Federal Endangered Species Act Consultation Summary........................................ 40 Section 404 of the Clean Water Act Coordination Summary .................................... 40 Magnuson-Stevens Fishery Conservation and Management Act Consultation Summary. .......................................................................................................... 40 Migratory Bird Treaty Act and Executive Order 13186 Coordination Summary ........ 40 Executive Order 11988 – Floodplain Management Coordination Summary ............. 41 Executive Order 11990 – Protection of Wetlands Coordination Summary ............... 41 Executive Order 13112 – Invasive Species Coordination Summary ........................ 42 California Endangered Species Act Consultation Summary ..................................... 42 Section 401 of the Clean Water Act Consultation Summary .................................... 42 Section 1600 of the California Fish and Game Code Coordination Summary .......... 42 Sections 3503 and 3503.5 of the California Fish and Game Code Coordination Summary ...................................................................................... 42 Native Plant Protection Act Coordination Summary ................................................. 43 Senate Bill 857 (SB 857) Fish Passages Coordination Summary ............................ 43 6 - REFERENCES ........................................................................................................ 43 APPENDIX A USFWS AND NMFS OFFICIAL SPECIES LISTS ............................. A-1 APPENDIX B CNDDB AND CNPS LISTS ............................................................... B-1 APPENDIX C SPECIES DETECTED IN THE BSA ................................................. C-1 APPENDIX D DELINEATION OF JURISDICTIONAL WATERS REPORT ............. D-1 Figures Figure 1: Project Location ............................................................................................... 4 Figure 2: Biological Study Area ....................................................................................... 5 Figure 3: Proposed Project .............................................................................................. 6 Figure 4: Typical Cross-Section ...................................................................................... 8 Figure 5: Construction Detour ....................................................................................... 10 Figure 6: Vegetation, Land Use, and Photograph Key Location Map ............................. 20 Figure 7: Site Photographs ............................................................................................ 21 Hartnell Road Bridge Replacement Project NES(MI) ii Table of Contents Tables Table 1: Project Impacts. ................................................................................................. 2 Table 2: Survey Type, Date, and Personnel .................................................................. 17 Table 3: Special-Status Species Potentially Occurring or Known to Occur in the Biological Study Area ........................................................................................