SAFER Bay Project
April 14, 2017 San Francisco Bay Restoration Authority
Len Materman, Executive Director San Francisquito Creek Joint Powers Authority 650-324-1972 [email protected] San Francisco Bay
You are here A regional challenge: two floodplains
East Palo Alto
Northern Boundary: Menlo Park 0 0.5 Redwood City Miles 1 in = 0.5 miles Palo Alto SAFER Bay Project Approximate number of parcels in the 100-year floodplains Southern Boundary: Mountain View Proposed Reach = Creek floodplain only (3,500 parcels) Alignments
= Bay floodplain only (over 2,700 parcels) Figure 1 Data Sources: Base Map-ESRI Maps and Data 2014; = Overlap of creek and Bay floodplains (2,200 parcels) All other data - HDR 2014 Datum: NAD83 California State Plane, Zone 3 US ft DATE: 6/16/2015 A related challenge: unsustainable marshes, a flood basin, and existing & former salt ponds
East Palo Alto
Menlo Park 0 0.5 Miles 1 in = 0.5 miles Palo Alto SAFER Bay Project
Proposed Reach Alignments
Figure 1 Data Sources: Base Map-ESRI Maps and Data 2014; All other data - HDR 2014
Datum: NAD83 California State Plane, Zone 3 US ft DATE: 6/16/2015 These challenges are co-dependent: we cannot address one without the other
East Palo Alto
Menlo Park 0 0.5 Miles 1 in = 0.5 miles Palo Alto SAFER Bay Project
Proposed Reach Alignments
Figure 1 Data Sources: Base Map-ESRI Maps and Data 2014; All other data - HDR 2014
Datum: NAD83 California State Plane, Zone 3 US ft DATE: 6/16/2015 Flooding here is not just a modeled problem January 2015 King Tide S.F. Bay-Highway 101 Project Key Features & Benefits
Enhance marsh levee
Enhance public Degrade experience Bay levee
New levee Widen creek channel and create marshland to set back into golf course protect previously flooded people and property from SF Bay to Hwy. 101 against the maximum Excavate sediment possible creek flow with freeboard during an and create marsh extreme tide with 3 feet of Sea Level Rise transition zones
Floodwalls Major infrastructure
San Francisco Bay
• Key highways • Regional wastewater treatment plant • Regional electrical facility • Regional postal facility • Regional airport • Corporate HQ & new development Opening the “Dumbarton Narrows” could benefit the whole South Bay
Public Draft Feasibility Report SAFER Bay Project
Strategy to Advance Flood protection, Ecosystems and Recreation along San Francisco Bay
East Palo Alto and Menlo Park
(Task Order 1)
October 2016
Available at sfcjpa.org
San Francisquito Creek Joint Powers Authority 615 B Men lo Avenue Me nlo Park, CA 94025
LIDAR of the mid-Peninsula
S.F. Bay
East ~ Nine feet abovePalo Alto today’s Menlo Park daily high tide
100-year tide (11’) Elevation + 2’ freeboard = <13’ + 3’ SLR = 13-15.9’ At least 13’ now, = >15.9’ Palo Alto Enable 16’ SAFER Bay North SAFER Bay Project Reach 1, Option 1 Reach 1, Option 2 Protect 5,000 properties & major infrastructure, Reach 2, Option 1 restore marshes, connect communities through trails Reach 3, Option 1 Reach 4, Option 2 Reach 5, Option 1 Reach 5, Option 4 Reach 7, Option 2 Reach 8, Option 2 Reach 9, Option 1 Reach 9, Option 2 SAFER Bay South Reach 10_Option 1 Reach 10_Option 2 Reach 11_Option 1 Reach 11_Option 2 Reach_11_Option2a Reach 11_Option 3 Reach_11_Option3a
11 miles of shoreline within two counties and three cities • Remove properties from current & future floodplain/risk
0 0.5 • Utilize marshes for protection in a way that sustains them Miles 1 in = 0.5 miles • Expand opportunities for recreation and connectivity SAFER Bay Project • Meet objectives regardless of neighboring action/inaction Proposed Reach • Create partnerships with protected assets Alignments
Figure 1 Data Sources: Base Map-ESRI Maps and Data 2014; All other data - HDR 2014
Datum: NAD83 California State Plane, Zone 3 US ft DATE: 4/6/2016 Marsh Restoration Opportunities
Legend
Proposed Levee Cooley Proposed Setback Levee Option 2 Landing Proposed Tidal Marsh Enhancement (374 ac) Marsh Representative Transition Zone Habitat - 15H : 1V slope (23 ac) Representative Transition Zone Habitat - 15H: 1V slope (11 ac)(Goes with Proposed Setback Levee)
*Note: Low Cost and Recreation Alternatives do not include Transition Zone or Tidal Marsh Enhancement
t f
0 5 1
Laumeister
Marsh
d
x
m
.
1
n
o i
t Faber
p
O
9
, Marsh
8
,
7
s
e
h
c
a
e
R
Y
g
i
F
\
s
t
r
o
p
e
R
\
1
0
- 0
5 Background: 2014 NAIP Aerial
5
3
\ 0
0 1,000 500 0 1,000
5
3
s
t
c
e j
o Feet
r
P
\
: N Figure 30- Restoration Alternative - Proposed Tidal Marsh Enhancement and Transition Zone Habitat Areas - Reach 7, 8 & 9 SAFER Bay Project (3550-01) October 2016 North of Hwy. 84 Dumbarton Bridge
Pop-up floodwall
Green option: • More cost effective • Enables tides in R1, R2 Pink option: • Protects all of Hwy 84 • Protects SFPUC pipe • Enables tides in R1, R2, SF2 Input into SAFER’s San Mateo County side project
• City Council meetings in East Palo Alto and Menlo Park • League of Women Voters public meetings in 2015 & 2016 • Salt Pond Restoration Project Management Team • BCDC Bay Fill working group • Citizen's Committee to Complete the Refuge • Amer. Water Resources Assn. & Amer. Society of Civil Engineers • Restoration Authority Board
• Meetings with regulatory agencies • Public EIR Scoping meetings • Public Draft EIR meetings • City staff review of administrative drafts SAFER’s San Mateo County side anticipated schedule
• 2016 – Spring 2017: Engage stakeholders, public presentations
• May 2017: Select preferred alternative, begin EIR of alternatives and design preferred alternative
• 2018: Public Draft of EIR released
• Late 2018: Complete EIR & design
• Early 2019: Apply for permits
• 2019 & 2020: Secure construction & maintenance funding SAFER’s San Mateo County side funding approach
Regional scale enhancement and protection of natural and built assets means multiple partners share in the impacts, costs and benefits.
The diversity of benefitting assets dictates the diversity of funding sources.
Planning and design funding sources (as of April 2017) • SFCJPA (CA grants) • Facebook, Inc. • Cities of East Palo Alto & Menlo Park • U.S. Fish & Wildlife Service
Potential construction funding sources • S.F. Bay Restoration Authority • FAA and USFWS • Private sector • Aggregated flood insurance • State of CA through the private market • Special tax / assessment district bond San Francis co B a y ge MENLO PARK HARRIET MUNDY id Br n MARSH rto ba HOOKS ISLAND um D
Reach 11 Pond A1
EXISTING 101 FLOOD GATE FLOOD GATES
FABER Palo Alto TRACT Duck Pond Reach 10
Reach, Option MAINTAIN ACCESS TO PARKING LOT C Reach 10, Option 1 PALO ALTO h a r AIRPORT M le FLOOD GATE s BYXBEE a t Reach 10, Option 2 y o n fi PARK e S l MAINTAIN d lo HILLS S u Reach 11, Option 1 l g AIRPORT o h u g ACCESS h Reach 11, Option 2 PALO ALTO GOLF COURSE S Reach 11, Option 2a an F REGIONAL FLOOD CONTROL ra WATER QUALITY nc BASIN Reach 11, Option 3 is qu CONTROL PLANT ito C Reach 11, Option 3a re ek City Limits
A
d OPTIONAL o EAST PALO ALTO b e
FLOOD GATES C TIE TO MOUNTAIN r e e VIEW LEVEE k
E . Ba Coast Casey ys Forebay ho re EMILY RENZEL R oa WETLANDS d MOUNTAIN VIEW 0 1,000 Feet PALO ALTO 10 1 OPERATIONS AND Pond A 1 inch = 1,000 feet MAINTENANCE FACILITY SAFER Bay Project Pond B Task Order 2
k
e PALO ALTO Palo Alto e PALO ALTO r C
o From San Francisquito Creek r
e d to City of Mountain View a t
a A B d M o a b r r e o C Figure 1 n r e A closer look at SAFER’s Santa Clara County side C e Data Sources: Base Map-ESRI Maps and Data 2014; r k e All other data - HDR 2014 e k Datum: NAD83 California State Plane, Zone 3 US ft DATE: 5/24/2016 Thank You
Len Materman, Executive Director San Francisquito Creek Joint Powers Authority 650-324-1972 [email protected]