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Appendix F Flooding and Drainage Assessment
Appendix F Flooding and Drainage Assessment 870 Market Street, Suite 1278 San Francisco, CA 94102-2906 t. 415-433-4848 Schaaf & Wheeler f. 415-433-1029 CONSULTING CIVIL ENGINEERS s&[email protected] MEMORANDUM TO: Hannah Darst DATE: March 24, 2020 David J. Powers & Associates FROM: Caitlin Gilmore, PE JOB#: DPOW.100.18 SUBJECT: The San Jose Flea Market Mixed Use Development Flooding and Drainage Evaluation Updated INTRODUCTION This memorandum is an update to the previous analysis completed in September of 2005. David J Powers is preparing an EIR to develop 52 acres of residential units and office space with two new bridge crossings to the south side of the previously analyzed Flea Market site, south of Berryessa Road, east of Coyote Creek and adjacent to the new VTA/BART line. In addition to focusing on the south side of Berryessa Road, this update includes several changes which have occurred in the watershed; namely the completion of the BART/VTA track guideway and Berryessa Station, the improvements to Upper Penitencia Creek with bridge replacements and studies of the watershed completed on behalf of VTA and the Santa Clara Valley Water District. In addition, the phase of the Flea Market development on the north side of Berryessa Road is under construction. The objective of this study is to describe the existing flood and drainage conditions at the proposed San Jose Flea Market mixed use development project (north and south), the potential project constraints, and potential impacts of the proposed project. The project area includes Upper Penitencia Creek and is adjacent to Coyote Creek. -
Chapter [Click Here and Type Chapter Number]
Chapter 2 Land Use and Covered Activities 2.1 Introduction This chapter examines existing land use conditions and land use plans in the study area, and describes activities covered under the Plan. The land use component of this chapter provides an overview of the major land use and open space management agencies operating within the study area and provides a brief description of each agency’s mission and jurisdiction. The description of land use provides the necessary context for the covered activities upon which the impact analysis (Chapter 4) is based. This chapter provides history and context for future development in the study area, reviews existing land-use conditions and relevant land use plans; presents the criteria used to determine land use categories for the Plan; discusses significant existing open spaces in the study area and open space type classification; and describes the projects and activities within the permit area that will be covered under the incidental take permits. 2.2 Land Use and Jurisdictions 2.2.1 Existing Conditions Santa Clara County encompasses 835,449 acres (1,305 square miles), 519,506 acres (810 square miles, or 62% of the County) of which are included in the study area of this Plan. The fertile Santa Clara Valley (Valley) runs the entire length of the County from north to south, ringed by the rolling hills of the Diablo Range on the east and the Santa Cruz Mountains on the west. Salt marshes, tidal wetlands, and mostly abandoned salt ponds lie in the northern part of the County, adjacent to San Francisco Bay (County of Santa Clara 2006a) (see Figure 1-1 for the regional location of the Plan study area). -
Resilient Landscape
RESILIENT LANDSCAPE VISIONfor Upper Penitencia Creek RESILIENT LANDSCAPE VISION for Upper Penitencia Creek december 2018 Prepared by San Francisco Estuary Institute- Aquatic Science Center Amy Richey Scott Dusterhoff Katie McKnight Micha Salomon Steven Hagerty Ruth Askevold Robin Grossinger In cooperation with and funded by the sfei-asc publication #894 SUGGESTED CITATION San Francisco Estuary Institute - Aquatic Science Center. 2018. Resilient Landscape Vision for Upper Penitencia Creek. An SFEI-ASC Resilient Landscapes Program report developed in cooperation with the Santa Clara Valley Water District and a Science Advisory Hub. Publication #894. San Francisco Estuary Institute - Aquatic Science Center, Richmond, CA. REPORT AVAILABILITY Report is available at SFEI.org IMAGE PERMISSION Unless otherwise noted, photos are by SFEI-ASC. Permissions for additional images used in this publication have been specifically acquired for one-time use in the publication only. Further use or reproduction is prohibited without express written permission from the responsible source institution. For permissions and reproductions inquiries, please contact the responsible source institution directly. COVER CREDITS Front and back cover, imagery courtesy of Google Earth. DISCLAIMER: This report explores the potential for integrating ecological functions into flood risk and water supply management along Upper Penitencia Creek. It presents an initial vision for how ecological elements could contribute to flood management objectives, based on a broad-scale analysis, two one-day workshops of local and regional experts, and a series of charrettes held by the Santa Clara Valley Water District. This landscape vision is not intended to be implemented as is, but rather adapted and applied through future projects and analysis. -
Upper Penitencia Creek Historical Ecology Assessment
HISTORICAL ECOLOGY PROGRAM contribution no. 664 • june 2012 UPPER PENITENCIA CREEK HISTORICAL ECOLOGY ASSESSMENT June 2012 By the San Francisco Estuary Institute Erin Beller Robin Grossinger Maika Nicholson Micha Salomon Design and layout by Ruth Askevold Suggested Citation: Beller EE, Grossinger RM, Nicholson M, Salomon MN. 2012. Upper Penitencia Creek Historical Ecology Assessment. A report of SFEI’s Historical Ecology Program, SFEI Publication #664, San Francisco Estuary Institute, Richmond, CA. Report is available on SFEI’s website, at http://www.sfei.org/UpperPen_HE. Permissions rights for images used in this publication have been specifically acquired for one-time use in this publication only. Further use or reproduction is prohibited without express written permission from the responsible source institution. For permissions and reproductions inquiries, please contact the responsible source institution directly. Front cover: “Penitencia Creek, near Alum Rock, San Jose, Cal.,” circa 1900. Courtesy of the San Jose Public Library, California Room. Table of Contents Introduction ........................................................................................................................................... 1 Environmental setting .........................................................................................................................................3 Methods ...................................................................................................................................................................4 -
Coyote Creek Watershed Historical Ecology Study
PART IV // LANDSCAPE CHANGE Part IV assesses how the historical landscape has been transformed into present-day conditions. In the first section, we summarize major events in the land use history of the watershed. Next we describe the trajectories of change in landscape features and associated habitats. In the final section, we discuss some of the implications for watershed restoration and management. SAN FRANCISCO ESTUARY INSTITUTE // F I N A L R E P O R T IV - C O Y O T E P A R T I V // LAN D SCAPE C H A N G E C 20 San Jose Annual Rainfall (deviation from mean, in REEK WATERSHE Ring Width Rainfall 15 10-year moving avg. (rainfall) 10 D H inches) I S T O R I C A L 5 E Tree Ring Width Index C O L O G Y 0 S -5 TU D Y -10 1695 1705 1715 1725 1735 1745 1755 1765 1775 1785 1795 1805 1815 1825 1835 1845 1855 1865 1875 1885 1895 1905 1915 1925 1935 1945 1955 1965 1975 1985 1995 2005 Climatic Year (July 1 -June 30) FIGURE IV-1. CLIMATE TIMELINE FOR SANTA CLARA VALLEY. Rainfall data for San Jose, 1874-2004, with 1850-1873 extrapolated based upon San Francisco data, courtesy of Jan Null. Tree ring data from a blue oak near Alum Rock Park (unpublished data provided by David Stahle, University of Arkansas). LAND USE CHRONOLOGY enous population for at least 5,000 years. While much remains to be learned about the Native management The present-day landscape is the product of previ- practices (Striplen 2005), the Spanish diaries describe ous land use events and activities, superimposed upon numerous villages, extensive trail networks, and the natural landscape patterns. -
Flood Protection Capital Improvements
Flood Protection Capital Improvements FLOOD PROTECTION OVERVIEW Listed by watershed are the completed and current flood Of the approximately 800 miles of creeks in Santa Clara protection capital improvements, moving upstream from County, Valley Water has jurisdiction over and manages the completed downstream work or starting new work approximately 275 miles to meet the Board’s Ends on creeks that have not had flood protection work. Policy E–3, “There is a healthy and safe environment for residents, businesses and visitors, as well as for Lower Peninsula Watershed future generations.” Valley Water’s goals are further Major Capital Improvements Completed defined in E-3.1, “Provide natural flood protection for • San Francisquito Creek from the S.F. Bay to residents, businesses, and visitors” and E-3.2, “Reduce Highway 101 (Safe, Clean Water) potential for flood damages.” The 275 miles of creeks • Adobe Creek from El Camino to West Edith Ave. are located in five watersheds: Lower Peninsula, West • Barron Creek Valley, Guadalupe, Coyote, and Uvas/Llagas. Valley Water administers an asset management program for its • Matadero Creek from Palo Alto Flood Basin to flood protection infrastructure. The program includes a Barron Creek schedule for maintenance and rehabilitation to ensure that each facility functions as intended throughout its Major Capital Improvements Identified in the CIP useful life. • Palo Alto Flood Basin Structure Improvements • Permanente Creek from S.F. Bay to Foothill Fifty years of flood protection management has Expressway (2012 Safe, Clean Water) significantly reduced the intensity and frequency of flooding in Santa Clara County. By 2005, Valley Water • San Francisquito Creek from Highway 101 to had provided flood protection to 93,253 of the 166,526 Searsville Dam (Safe, Clean Water) parcels in the floodplain and another approximately 10,445 have been protected since then. -
Final Independent External Peer Review Report Berryessa Creek
March 6, 2013 Final Independent External Peer Review Report Berryessa Creek, Santa Clara County, California, General Reevaluation Study (GRS) Draft General Reevaluation Report and Environmental Impact Statement/Environmental Impact Report Prepared by Battelle Memorial Institute Prepared for Department of the Army U.S. Army Corps of Engineers Flood Risk Management Planning Center of Expertise for the Baltimore District Contract No. W912HQ-10-D-0002 Task Order: 0030 Berryessa Creek GRS/EIS/EIR IEPR Final IEPR Report Final Independent External Peer Review Report Berryessa Creek, Santa Clara County, California, General Reevaluation Study (GRS) Final General Reevaluation Report and Environmental Impact Statement/Environmental Impact Report by Battelle 505 King Avenue Columbus, OH 43201 for Department of the Army U.S. Army Corps of Engineers Flood Risk Management Planning Center of Expertise for the Baltimore District March 6, 2013 Version 1 Contract No. W912HQ-10-D-0002 Task Order: 0030 Berryessa Creek GRS/EIS/EIR IEPR Final IEPR Report This page is intentionally left blank. Berryessa Creek GRS/EIS/EIR IEPR Final IEPR Report Final Independent External Peer Review Report for the Berryessa Creek, Santa Clara County, California, General Reevaluation Study (GRS) Final General Reevaluation Report and Environmental Impact Statement/Environmental Impact Report EXECUTIVE SUMMARY Project Background and Purpose The Berryessa Creek, Santa Clara County, California General Reevaluation Study (GRS) was initiated in 2001 to investigate alternatives to the authorized Berryessa Creek Project in Santa Clara County for the purpose of flood risk management (FRM). The study is considering channel and floodplain terrace excavation, bridge and culvert modifications, levee and floodwall construction, sediment basin modifications, bed and bank armoring, minor recreation improvements, and planting of riparian vegetation. -
Lower Penitencia Creek Improvements Project
Lower Penitencia Creek Improvements Project View from the Milmont Drive bridge facing downstream of Lower Penitencia Creek. Lower Penitencia Creek Lower Penitencia Creek receives storm flows from Berryessa Creek and into Coyote Creek. Construction has begun on Lower Penitencia Creek is located in the northeastern portion improvements to Berryessa Creek that will bring more storm of Santa Clara County within the City of Milpitas. Valley Water flows into Lower Penitencia Creek. In its existing condition, improved Lower Penitencia Creek in 1955 and in the 1980s Lower Penitencia Creek does not have the required capacity to as commercial development construction occurred in the carry the increased storm flows when Berryessa Creek flood surrounding area. Improvements included channel widening improvements are completed. and raising the levees to increase the creek’s capacity to carry storm flows and reduce flood risk. East of Lower Penitencia Creek, Valley Water completed the About the project Lower and Upper Berryessa Creek flood protection projects to provide a 100-year storm level of service, with work on Calera The Lower Penitencia Creek Improvements Project extends Creek planned for summer 2021. A 100-year storm event is an approximately one mile from its confluence with Coyote Creek to event that has a 1 percent chance of occurring in any given year. San Andreas Drive in Milpitas. This project is necessary to provide continued flood protection for residents and businesses currently The Lower Penitencia Creek Improvements Project’s planning protected along the one-mile project area. and design phases were funded by the California Department of Water Resources’ Proposition 1E grant. -
Water Resources, Water Quality, and Floodplains
Silicon Valley Rapid Transit Corridor Final EIR 4.18 WATER RESOURCES, WATER QUALITY, AND FLOODPLAINS 4.18.1 INTRODUCTION This section describes the regulatory setting and existing conditions applicable to water resources, water quality, and floodplains in the SVRTC study area. It evaluates the extent to which the Baseline Alternative and BART Alternative would result in impacts to these resource areas and identifies mitigation measures to avoid or reduce these impacts. 4.18.2 EXISTING CONDITIONS This section describes the existing conditions of groundwater resources, surface water resources, and floodplains in the SVRTC study area as the basis for determining impacts to water quality and supply, flood risk, or encroachment into the floodplain. Key sources of information consulted on existing hydrologic conditions included the following: • The current Fremont General Plan (City of Fremont 1991); • The California State Water Resources Control Board’s listing of water bodies identified as having limited water quality (California State Water Resources Control Board 2003); • The most recent Flood Insurance Rate Maps (FIRMs) for the region that includes the SVRTC project area (Federal Emergency Management Agency 2000); • BART Warm Springs Extension Draft Environmental Impact Report (San Francisco Bay Area Rapid Transit District 1991a); • The Silicon Valley Rapid Transit Corridor Location Hydraulic Study Technical Report (Earth Tech, Inc. 2003). 4.18.2.1 Weather and Climate The San Francisco Bay Area, like much of California’s central coast, enjoys a Mediterranean climate characterized by mild, wet winters and warm summers. Moderated by proximity to San Francisco Bay and the ocean, temperatures are seldom below freezing. Summer weather is dominated by sea breezes caused by differential heating between the interior valleys and the coast, while winter weather is dominated by storms from the northern Pacific Ocean that produce the majority of the region’s annual rainfall. -
Redesign of Reaches a and B of the Lower Calera Creek Element
REDESIGN OF REACHES A AND B OF THE LOWER CALERA CREEK ELEMENT FIRST ADDENDUM TO THE LOWER BERRYESSA CREEK PROGRAM FINAL ENVIRONMENTAL IMPACT REPORT SCH# 2007092084 July 2018 Prepared by: Santa Clara Valley Water District 5750 Almaden Expressway San Jose, California 95118-3614 District Board of Directors John L. Varela District 1 Nai Hsueh District 5 Barbara Keegan District 2 Tony Estremera District 6 Richard P. Santos, Chair District 3 Gary Kremen District 7 Linda J. LeZotte, Vice Chair District 4 P: Coyote Capital Projects/02-Lower Berryessa/Work Space/Lower Calera Creek/10.CEQA and Permits/Green Folder First Addendum to the Lower Berryessa Creek Program EIR TABLE OF CONTENTS TABLE OF CONTENTS .............................................................................................................1 1. BACKGROUND AND NEED ..................................................................................................2 2. CEQA CONSIDERATIONS ...................................................................................................3 3. DESCRIPTION OF PROPOSED CHANGES TO THE LOWER CALERA ELEMENT ............ 4 4. ENVIRONMENTAL ANALYSIS ..............................................................................................6 4.1 Aesthetics ..................................................................................................................................................... 7 4.2 Air Quality .................................................................................................................................................. -
Santa Clara County
Historical Distribution and Current Status of Steelhead/Rainbow Trout (Oncorhynchus mykiss) in Streams of the San Francisco Estuary, California Robert A. Leidy, Environmental Protection Agency, San Francisco, CA Gordon S. Becker, Center for Ecosystem Management and Restoration, Oakland, CA Brett N. Harvey, John Muir Institute of the Environment, University of California, Davis, CA This report should be cited as: Leidy, R.A., G.S. Becker, B.N. Harvey. 2005. Historical distribution and current status of steelhead/rainbow trout (Oncorhynchus mykiss) in streams of the San Francisco Estuary, California. Center for Ecosystem Management and Restoration, Oakland, CA. Center for Ecosystem Management and Restoration SANTA CLARA COUNTY Coyote Creek Watershed Coyote Creek originates on the slopes of Mount Sizer near Henry Coe State Park and flows generally south and west to the Santa Clara Valley. Near the site of Coyote Reservoir, the creek turns to flow north to enter the southern San Francisco Estuary near Dixon Landing Road. The main stem consists of approximately 42 miles of stream channel, and the creek has approximately ten primary tributaries. The watershed area is about 354 square miles. Coyote Creek Snyder documented the occurrence of Salmo irideus (O. mykiss) from collections likely made in 1898 from two locations in lower Coyote Creek (Snyder 1905). He described O. mykiss near the mouth and near the city of San Jose, indicating that the lower creek historically contained suitable habitat. A museum O. mykiss specimen from an unknown Coyote Creek location was collected by Synder in 1898, and is designated “Santa Clara Co., Cal.” (Snyder 1898). Oncorhynchus mykiss was collected from upper Coyote Creek in the canyon east of the Town of Madrone (located within present day Morgan Hill) in 1936 (Fry 1936).