sewer system improvement program bayside watersheds up.pdf · sewer system improvement program...
TRANSCRIPT
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
SEWER SYSTEM IMPROVEMENT PROGRAM
Bayside Watersheds URBAN WATERSHED ASSESSMENT RECOMMENDATIONS Rosey Jencks David Wood
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
1. Urban Watershed Assessment (UWA) Purpose and Need
2. Opportunities to Meet LOS Challenges
3. Solutions Developed through Alternatives Analysis
4. Next Steps
5. Questions and Discussion
2
AGENDA
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
UWA PURPOSE AND NEED
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
URBAN WATERSHED ASSESSMENT (UWA)
Sewer System Planning For The Future
• 1,000 Miles of Sewers
• 8 Transport/Storage Structures
• 19 All-Weather Pump Stations
• 25,000 Catch Basins
• Green Infrastructure
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
SFPUC COLLECTION SYSTEM
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Levels of Service Goals
Provide a Compliant, Reliable, Resilient, & Flexible System that can Respond to Catastrophic Events
Integrate Green & Grey Infrastructure to Manage Stormwater and Minimize Flooding
Provide Benefits to Impacted Communities
Modify the System to Adapt to Climate Change
Achieve Economic & Environmental Sustainability
Maintain Ratepayer Affordability
UWA PURPOSE AND NEED
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
URBAN WATERSHED ASSESSMENT TIMELINE
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September 2011 December 2015
Recommended Projects, Programs &
Policies and Implementation
Strategy
Public Outreach and Engagement
Watershed Characterization
Watershed Opportunities
Evaluate Watershed Alternatives
Develop Watershed Alternatives
Inter-Agency Coordination and Involvement
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
OUR URBAN WATERSHEDS
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE CHARACTERIZATION
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San Francisco’s Bayside Watersheds • Steep Slopes • Infiltration Constraints • 75% Impervious • Large Rooftops and Impervious
Areas, Smaller Lots, Narrower Streets and Sidewalks
• Seismic Vulnerability • More System Challenges: CSDs,
Excess Stormwater, Aging Infrastructure, Sea Level Rise, EJ Areas
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE CHALLENGES
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Impacted Community
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE CHALLENGES
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Combined Sewer Discharge (CSD) NORTH SHORE CSD BASIN
DESIGN CRITERIA 4
CENTRAL CSD BASIN
DESIGN CRITERIA
10
SOUTHEAST CSD BASIN DESIGN
CRITERIA 1
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE CHALLENGES
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Areas of Excess Flow
CONSTRAINED URBAN CONDITIONS
NATURAL FLOWS
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean. 13
BAYSIDE OPPORTUNITY INPUTS
• 3 Bayside Watershed Planning Workshops - 170 participants
• Online and in-person survey – More than 3,400 responses
• Presentations and events - More than 40 groups
Public Outreach
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
OPPORTUNITIES TO MEET LOS CHALLENGES
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE OPPORTUNITIES
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Benefits • Address excess flow through large conveyance and/or storage
• Maximize system storage and minimize CSDs
• Contribute to Sea Level Rise adaption
Grey
Pump Stations Tunnels Pipes
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE OPPORTUNITIES
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Green
Green and Blue Roofs Permeable Paving Rain Gardens
Benefits • Remove Runoff from System
o Reduce Combined Sewer Discharge Volume and Peak Runoff
• Environmental, Pedestrian Enhancements and Traffic Calming
• Interagency Collaboration
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
SOLUTIONS DEVELOPED THROUGH ALTERNATIVES ANALYSIS
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE LONGTERM UWA PROJECT CONCEPTS
Grey • Channel Tunnel • Upstream Conveyance
Green • Streets • Parks, Schools, Housing,
Creeks, City properties • Incentive Programs
LEGEND
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE GI PROJECT CONCEPTS
Streets
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE GI PROJECT CONCEPTS
Parks (San Francisco Rec & Park)
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE GI PROJECT CONCEPTS
Schools (San Francisco Unified School District)
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE GI PROJECT CONCEPTS
Housing (San Francisco Housing Authority)
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE GREEN INFRASTRUCTURE
Creek Daylighting
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
BAYSIDE GREEN INFRASTRUCTURE
Incentive Programs for Private Properties
• Sustainable Roof Program • Watershed Improvement Program • Residential Stormwater Program • Stormwater Technical Services Program
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Project Goals:
• Provide needed redundancy to the Channel Force Main
• Improve seismic reliability
• Improve stormwater management in the Channel and Islais Creek watersheds
CENTRAL BAYSIDE SYSTEM IMPROVEMENT PROJECT
Channel Force Main Reliability and Redundancy
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
NEXT STEPS
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
OTHER SSIP PROJECTS & PROGRAMS
• Southeast Treatment Plant Upgrades
• North Point Wet Weather Facility Upgrades
• Green Infrastructure Projects
• Contractors Assistance Center
• Sewer Repair Work
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
SSIP IMPLEMENTATION SCHEDULE
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
URBAN WATERSHED ASSESSMENT NEXT STEPS
Bayside Watersheds • Present Final Recommendation to Commission - April 2015
Westside Watersheds • Complete Westside UWA – October 2015
Citywide Watersheds • Prioritize UWA Recommendations System-wide for
Implementation – December 2015
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SEWER SYSTEM IMPROVEMENT PROGRAM | Grey. Green. Clean.
Grey. Green. Clean.
SYSTEM & SEISMIC RELIABILITY & REDUNDANCY
INNOVATIVE STORMWATER MANAGEMENT SOLUTIONS
PROTECTING OUR BAY & PACIFIC OCEAN
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QUESTIONS?
Tell us what you think!
www.surveymonkey.com/s/UWABaysideRec