City of San Jose Storm Sewer Master Plan

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1 City of San Jose Storm Sewer Master Plan Anne Symonds, PE and Mira Chokshi, PE 2016 Pacific Water Conference AWWA Hawaii Section HWEA February 4, 2016

Calibration and Verification Development of a LOS and CIP - Existing, Near Term and Future Progress and

2 Agenda Introduction and Goals of the Project Background on the City of San Jose Modeling Platform Model Development - Model Development Assignments - Rain and Flow Monitoring - Riverine Integration - Calibration and Verification Development of a LOS and CIP - Existing, Near Term and Future Progress and Next Steps 2 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

3 Introductions of Project Team AECOM Team: - Anne Symonds, PM - David Wood, PIC - Mira Chokshi, Lead Modeler - Sharon Tsay and Dominique Brocard, QC City of San Jose Team: - Casey Hirasaki, PM - Shelley Guo, PIC - Rotating staff of modelers 3 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

Key Goals of the Project Provide Knowledge Transfer - Split Modeling Work with City of San Jose - Provide Training - Provide Overall QC Use InfoWorks ICM to provide integrated pipe network and

4 Key Goals of the Project Provide Knowledge Transfer - Split Modeling Work with City of San Jose - Provide Training - Provide Overall QC Use InfoWorks ICM to provide integrated pipe network and riverine model with 2D capability Provide City with Completed Master Plan including CIP by June 2017 (AECOM selected in 2013) 4 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

Background on the City of San Jose Total area: 176.

5 Background on the City of San Jose Total area: Square Miles 2010 Population: 952,562 1,150 miles of Storm Sewer Pipeline 1,500 Storm Outfalls Discharges to Guadalupe River and Coyote Creek 80% of system constructed between 1950 and 1979 Designed to various criteria Riverine System Managed by Santa Clara Valley Water District 5 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

Modeling Platform InfoWorks ICM ICM Integrated Catchment Modeling Fully-dynamic state of the art hydrologic and hydraulic (H&H) model Key Features: - Import HEC-RAS channel geometry - Enables surface

6 Modeling Platform InfoWorks ICM ICM Integrated Catchment Modeling Fully-dynamic state of the art hydrologic and hydraulic (H&H) model Key Features: - Import HEC-RAS channel geometry - Enables surface flow routing using two-dimensional (2D) modeling - Uses multi-core processors and graphics processing units (GPU) for parallel computer - Allows multiple modelers to work on the same model network simultaneously 6 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

H&H Model Development Overview Supported rainfall and flow data collection Imported pipes>=24 and manholes from City GIS All major creeks and open channels Developed documentation for training City

7 H&H Model Development Overview Supported rainfall and flow data collection Imported pipes>=24 and manholes from City GIS All major creeks and open channels Developed documentation for training City staff Documentation serves as ongoing record of work Provided weekly informal training Training Memo #2 Excerpt 7 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

completed, Second season calibration underway Third season data collection underway (El

8 Rainfall and Flow Monitoring Originally scheduled for Two seasons, third added City contracted directly with ADS Data reviewed and assessed First season calibration completed, Second season calibration underway Third season data collection underway (El Nino 9 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

9 Spatial Variability in Observed Rainfall 10 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

10 Gage adjusted radar rainfall (GARR) data 11 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

Flow Monitoring Data Quality Check City/AECOM team reviewed flow data right after storm to identify any site issues (backwater, failure of sensors) Provided feedback to ADS to address flow

11 Flow Monitoring Data Quality Check City/AECOM team reviewed flow data right after storm to identify any site issues (backwater, failure of sensors) Provided feedback to ADS to address flow meter sensor issues Process improved data quality and provided high quality data for calibration 12 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

12 H&H Model Development 24 inch and Larger Pipes 1,100 miles of storm sewer pipes miles of storm sewer pipes (>=24 ) in H&H model - 13,000 storm sewer manholes - 36 Large Storage Basins - 29 Major Pump Stations Flap valves at Outfalls (out of 1100 Outfalls) - 6,500 subcatchments 13 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

13 14 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

H&H Model Development - Used Parcel Types to Estimate % Impervious DCIA_LU % DCIA % NDCIA Rural Housing 11 8 Single Family>1acre 11 8 Single Family>0.23acre 15 12 Single Family>0.

14 H&H Model Development - Used Parcel Types to Estimate % Impervious DCIA_LU % DCIA % NDCIA Rural Housing 11 8 Single Family>1acre 11 8 Single Family>0.23acre Single Family>0.18acre Single Family>0.11acre Single Family>0.08acre Single Family>0.06acre Single Family<=0.06acre 35 0 Townhomes Condominiums 68 0 Industrial 80 0 Apartments 89 0 Commercial 90 0 Mobile Home Park Schools 35 0 Mixed Use Water 0 0 Open Space 2 0 Parks and Fields 5 0 Freeways City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

H&H Model Development - Riverine Model Integration Gathered Creek Models from SCVWD Various ages and format of riverine models (1970-2012) Established most efficient way to develop the riverine

15 H&H Model Development - Riverine Model Integration Gathered Creek Models from SCVWD Various ages and format of riverine models ( ) Established most efficient way to develop the riverine models When available used: - HEC-RAS/2 model - Geo-referenced HEC-2 - ICM to develop based on LIDAR 16 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

16 H&H Model Calibration and Verification Hydrograph and Scatter graph for Flow meter GUA_08 17 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

17 H&H Model Calibration and Verification Hydrograph and Scatter graph for Flow meter GUA_22 18 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

18 H&H Model Calibration and Verification Bird Pump Station Wet Well Level Verification 19 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

19 Model Verification for Surface Flooding Model Results Color Depth 2-6 > 6 20 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

Other Supporting Work Coordination with City on LID incorporation Development of Land Use Layers for Existing, Near Term and Future Conditions (using City s 2040 General Plan)

20 Other Supporting Work Coordination with City on LID incorporation Development of Land Use Layers for Existing, Near Term and Future Conditions (using City s 2040 General Plan) Development of Design Storms Review of Bay and River Levels including Climate Change Impacts 21 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

21 Next Steps Include: Having a complete calibrated model Establishing preliminary LOS goals Assessing existing, near term and future system performance Setting LOS goals with stakeholders Developing list of system deficiencies Developing alternative projects to resolve deficiencies Analyzing the system to develop the most efficient CIP recommendations Environmental Review 22 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

22 Thank You

Integrated Offer Our services: what we do Architecture Building Engineering Design

Communications + IT Mechanical, Electrical + Plumbing Systems Integration Security

Planning Strategic Planning Economic Planning + Real Estate Entertainment +

Economic Development Consulting Renewable Energy Bio-energy Energy Efficiency +

Environment Government Services Program + Construction Management Transportation

Management Environmental Remediation Site Restoration Waste + Solid Waste Services

Safety Management + Contracting Procurement Strategies Program Control Systems

Web-based Project Management Systems Quality Management Funding + Financial

Consulting Floodplain services Stormwater Treatment + Disposal Wastewater systems

systems development Wet weather mitigation 24 City of San Jose Citywide Storm

23 Integrated Offer Our services: what we do Architecture Building Engineering Design + Planning Economics Energy Architecture Interior Design Building Structures Communications + IT Mechanical, Electrical + Plumbing Systems Integration Security Landscape Architecture Master Planning + Urban Design Environmental + Ecological Planning Strategic Planning Economic Planning + Real Estate Entertainment + Leisure Feasibility Hotels + Resorts Feasibility Capital Facilities Planning Economic Development Consulting Renewable Energy Bio-energy Energy Efficiency + Carbon Management Smart Power Distribution Hydropower Thermal Power Wind Power Environment Government Services Program + Construction Management Transportation Water Air Quality Impact Assessment + Permitting Environmental Health + Safety Management Environmental Remediation Site Restoration Waste + Solid Waste Services Program Management Logistics Operation + Maintenance International Development Safety Management + Contracting Procurement Strategies Program Control Systems Risk Management Change + Dispute Control/Mitigation Cost Control + Estimating Web-based Project Management Systems Quality Management Funding + Financial Solutions Economic Planning + Real Estate Entertainment + Leisure Feasibility Hotels + Resorts Feasibility Capital Facilities Planning Economic Development Consulting Floodplain services Stormwater Treatment + Disposal Wastewater systems Water quality planning Water resources engineering Water program management Water systems development Wet weather mitigation 24 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

24 Vision, Purpose and Core Values Our purpose: who we are We are driven by a common purpose to positively impact lives, transform communities and make the world a better place. 25 City of San Jose Citywide Storm Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA

25 City of San Jose Storm Sewer Master Plan 2016 Pacific Water Conference AWWA Hawaii Section HWEA February 2, 2016

Title Advanced Hydraulic Modeling to Support Emergency Action Plans

Title Advanced Hydraulic Modeling to Support Emergency Action Plans Abstract Freese and Nichols, Inc. (FNI) developed an Emergency Action Plan (EAP) for a Levee Improvement District (LID) located in a