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U.S. Highway 101 Pedestrian Undercrossing and Bair Island Road Storm Drain Pump Station Project Initial Study and Mitigated Negative Declaration Volume I

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U.S. Highway 101 Pedestrian Undercrossing and Bair Island Road Storm Drain Pump Station Project Initial Study and Mitigated Negative Declaration Volume I U.S. HIGHWAY 101 PEDESTRIAN UNDERCROSSING AND BAIR ISLAND ROAD STORM DRAIN PUMP STATION PROJECT INITIAL STUDY AND MITIGATED NEGATIVE DECLARATION VOLUME I AUGUST 21, 2013 Prepared for: Prepared by: City of Redwood City Point Impact Analysis and WRECO, Inc U.S. HIGHWAY 101 PEDESTRIAN UNDERCROSSING AND BAIR ISLAND ROAD STORM DRAIN PUMP STATION PROJECT This Initial Study and the proposed Mitigated Negative Declaration (MND) assess the potential environmental impacts of the U.S. Highway 101 Pedestrian Undercrossing and Bair Island Road Storm Drain Pump Station Project (US 101 Pedestrian Undercrossing and Bair Island Storm Drain Pump Station Project) for use in local planning and decision making. In compliance with the California Environmental Quality Act (CEQA), the City of Redwood City (City) decided to prepare a MND for the proposed project because the Initial Study found that, with the incorporation of appropriate mitigation measures, all potential impacts related to the project would be less than significant. PROJECT INFORMATION Project Title: U.S. Highway 101 Pedestrian Undercrossing and Bair Island Road Storm Drain Pump Station Project Lead Agency: City of Redwood City Community Development Department 1017 Middlefield Road Redwood City, CA 94064 Contact Person: Tanisha Werner, Project Engineer (650) 780-7366 [email protected] Project Applicant: City of Redwood City Project Location: Between Bair Island Road and Convention Way, Redwood City, CA Existing General Plan Designation: Mixed Use-Corridor, Mixed Use-Waterfront Neighborhood Existing Zoning: Planned Community District (P) Description of Project: The City of Redwood City proposes to construct a joint-use path under the U.S. Highway 101 bridge at Redwood Creek. The proposed path, approximately 700 feet long, would connect a recently constructed bicycle path on Bair Island Road to the existing bicycle path on Convention Way. The physical link between the Bayfront development projects and the Downtown area would fulfill long-term planning goals. The proposed project also includes an extension of the pedestrian path to the City-owned parcel south of Convention Way and a scenic overlook. The City also proposes to construct the Bair Island Storm Drain Pump Station adjacent to the proposed path. The new underground pumps, wet well, vault, enclosed emergency generator, and interconnecting pipelines would replace the existing pump station, which would be demolished. The new pumps would be capable of discharging the 32.4 cfs flow from the 22- acre drainage area during a 100-year storm event in, in compliance with City design criteria. The new pump station would discharge its flow through the existing 24-inch line into Redwood Creek. Surrounding Land Uses: U.S. Highway 101, the waterfront development in the Bayfront areas east of the freeway including the One Marina development and an automobile dealership, and the commercial development on the west side of the freeway, open space, and recreational uses. Other Agencies Whose Approval is Required: Bay Area Air Quality Management District, California Department of Fish and Wildlife, California Department of Transportation. San Francisco Bay Regional Water Quality Control Board, U.S. Army Corps of Engineers This page intentionally left blank INITIAL STUDY U.S. HIGHWAY 101 PEDESTRIAN UNDERCROSSING AND BAIR ISLAND ROAD STORM DRAIN PUMP STATION PROJECT City of Redwood City Community Development Department 1017 Middlefield Road Redwood City, CA 94063 August 21, 2013 This page intentionally left blank US 101 PEDESTRIAN UNDERCROSSING AND BAIR ISLAND STORM DRAIN PUMP STATION PROJECT TABLE OF CONTENTS VOLUME I Chapter Page 1 INTRODUCTION ......................................................................................................... 1-1 1.1 Project Location ............................................................................................................................ 1-1 1.2 Project Background....................................................................................................................... 1-1 1.3 Purpose and Need ......................................................................................................................... 1-3 1.4 Project Description ....................................................................................................................... 1-4 1.5 Project Construction ..................................................................................................................... 1-6 1.5.1 Construction Access ..................................................................................................................... 1-6 1.5.2 Construction Activities ................................................................................................................. 1-6 1.5.3 Project Schedule ............................................................................................................................ 1-8 1.5.4 Construction Equipment ............................................................................................................. 1-9 1.6 Other Agencies Whose Approval is Required ........................................................................ 1-11 1.7 List of Preparers .......................................................................................................................... 1-11 1.8 References .................................................................................................................................... 1-12 2 ENVIRONMENTAL ANALYSIS ................................................................................. 2-1 2.1 Aesthetics ....................................................................................................................................... 2-1 2.2 Agriculture and Forestry Resources ........................................................................................... 2-6 2.3 Air Quality ...................................................................................................................................... 2-7 2.4 Biological Resources ................................................................................................................... 2-13 2.5 Cultural Resources ...................................................................................................................... 2-24 2.6 Geology and Soils ........................................................................................................................ 2-28 2.7 Greenhouse Gas Emissions....................................................................................................... 2-33 2.8 Hazards and Hazardous Materials ............................................................................................ 2-37 2.9 Hydrology and Water Quality ................................................................................................... 2-41 2.10 Land Use and Planning .............................................................................................................. 2-48 2.11 Mineral Resources ....................................................................................................................... 2-50 2.12 Noise ............................................................................................................................................. 2-51 2.13 Population and Housing ............................................................................................................ 2-56 2.14 Public Services ............................................................................................................................. 2-57 2.15 Recreation ..................................................................................................................................... 2-58 2.16 Transportation and Traffic ........................................................................................................ 2-60 2.17 Utilities and Service Systems ..................................................................................................... 2-64 2.18 Mandatory Findings of Significance ......................................................................................... 2-67 ______________________________________________________________________________ iii US 101 Pedestrian Undercrossing and Bair Island Storm Drain Pump Station Project LIST OF FIGURES Figure Page Figure 1-1. Project Location ......................................................................................................................... 1-2 Figure 2-1. View of Redwood Creek........................................................................................................... 2-2 Figure 2-2. View of Bair Island Road. ........................................................................................................ 2-2 Figure 2-3. View from Convention Way. ................................................................................................... 2-3 Figure 2-4. Area of Potential Effect Map ................................................................................................... 2-5 LIST OF TABLES Table Page Table 1. Proposed Project Construction .................................................................................................... 1-9 VOLUME II APPENDICES APPENDIX A: Mitigation Monitoring and Reporting Plan APPENDIX B: Project Design Drawings APPENDIX C: Air Quality and Greenhouse Gas Technical Report APPENDIX D: Biological Resources Study APPENDIX E:
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