SOUTH SAN FRANCISCO BAY SHORELINE PROJECT PROJECT UPDATE PUBLIC - - PowerPoint PPT Presentation

Prepared by the Shoreline Project Sponsors 18 June 2018

SOUTH SAN FRANCISCO BAY SHORELINE PROJECT

PROJECT UPDATE PUBLIC MEETING

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TONIGHT’S AGENDA

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6:40 pm Presentation and Update on the Shoreline Project 7:10 pm Questions and Answers 7:20 pm Stakeholder Dialogue at Stations

• 2018 Pre-construction Activities
• Reach 1 Design
• Ongoing Communication

7:55 pm Wrap up and Adjorn

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PROJECT TEAM

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Chief’s Visit - 2006 Chief’s Report – Dec 2015

AUTHORIZED PROJECT

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ALVISO WASTEWATER FACILITY

LEVEE

Ecotone (transitional habitat) Tidal Habiat Restoration Union Pacific Railroad Crossing

1

Artesian Slough Crossing

N

TIES INTO ACCREDITED LEVEE TIES INTO ACCREDITED LEVEE WATER PURIFICATION CENTER

1 2

A18 A12 A13 A15 A14 A11 A9 A10

MLLW MTL MHW MHHW

NOT TO SCALE

Levee

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Ecotone

Project Components

 Flood Risk Management

• 4-miles of levee to protect from coastal flooding and rising seas
• Manages flood risk for population of ~5,500, ~1,100 structures,

& regional wastewater facility  Ecosystem Restoration

• 2,900 acres of tidal wetlands including ecotone (transitional habitat)

 Recreation

• Provides key connections to San Francisco Bay Trail & viewpoints

Total Project Cost - $177 million

• $74 million is federal cost
• $103 million is water district and coastal conservancy cost

AUTHORIZED PROJECT

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COMMERCIAL/INDUSTRIAL MANUFACTURING MOBILE HOME PARK HIGH TECH/R&D BUILDINGS MOBILE HOME PARK SINGLE FAMILY/MULTI-FAMILY RESIDENTIAL SINGLE-FAMILY RESIDENTIAL

FLOOD RISKS

COMMERCIAL/INDUSTRIAL LIBRARY ELEMENTARY SCHOOL Intermediate SLC Scenario Inundation Map (YR 50-11.6ft NAVD88)

A18 A12

SR237

A16

WATER PURIFICATION CENTER WASTEWATER FACILITY

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FIRE DEPARTMENT CHURCH

PROJECT NEED

Project Need

• Flood

Protection

• Ecosystem

Restoration

RWF

PROJECT NEED

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• 4 levee reaches
• 1st reach to be

designed and permitted for construction is Reach 1

PROJECT REACHES

RWF

Wastewater Facility Alviso Reach 1 A18 A13 Reach 2 & 3 Marina Railroad

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A12

ECOTONE & LEVEE CROSS-SECTION

Upland Grassland Shallow Subtidal Sea Level Rise of 2.59 feet Projection for 2067 Intertidal Mudflat Existing Berm

Engineered Levee 3:1 Side Slope

Low Marsh Middle Marsh High Marsh Low Marsh Middle Marsh High Marsh Intertidal Mudflat

15.2 feet high

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Existing Pond 16 foot crest width

RECREATION

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Photo by Judy Irving, Pelican Media

EXISTING RECREATION ACCESS

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POST-PROJECT RECREATION ACCESS

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A12 A18

Phase I (2018-2022) Phase II (2027) Phase III (2032)

A9 A10 A11 A14 A15 A13 Reach 1 Reaches 2 & 3

Phase I Phase II Phase III

Alviso Wastewater Facility Reach 4 Reach 5

PROJECT CONSTRUCTION PHASES

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New Chicago Marsh Pond A12

REACH 1 ACTIVITIES

2018 Pre-Construction Activities

• Secure easements
• Secure dirt brokers
• Identify truck haul route
• Identify public access detours
• Communicate with key

stakeholders and community

• Deliver dirt/material to Pond A12

PROPOSED TRUCK HAULING ROUTE

Pond A12 Closed Trail Access

ALTERNATE MARINA PUBLIC ACCESS

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Jun 2018 – Public outreach begins Jun 2018 – Corps anticipates receipt of federal construction funds Aug 2018 – Dirt delivery public meeting Sept 2018 – Delivery of dirt anticipated to begin Jun 2019 – Construction of Reach 1 anticipated to begin (pending receipt of funds)

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