BIG WAVE PROJECT: Planning Commission Hearing Nov 17 2010

8/7/2019 BIG WAVE PROJECT: Planning Commission Hearing Nov 17 2010

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Planning Commission HearingWednesday, Nov. 17th 2010

El Granada Elementary School, El Granada CA

SANATORIUM

OFFICE PARK

OFFICE PARK

Sabrina Brennan

Seal Cove-Moss Beach



http://www.youtube.com/watch?v=r39vt125g5M&feature=youtube_gdata_player

Big Wave Project






Big Wave Project










Is the Big Wave Project

prepared for an emergency?

SANATORIUM

OFFICE PARK

Rancho Corral de Tierra

POST

Pillar Point Bluff

FMR

HMB Airport

POST

POST

POST



“The proximity of the project tothe partially enclosed PillarPoint Harbor and the potential

for tsunami events could exposepeople to inundation by seiche,which represents a potentiallysignificant impact.”

Big Wave Project DEIRIV.H Hydrology & Water Quality

Page IV.H-61



2007 Grand Jury ReportTsunami Alert and Evacuation

On the San Mateo County Coast

SANATORIUM

BIG WAVE

TSUNAMI INUNDATION ZONE

Half Moon Bay, CA



A seiche (pronounced /ˈseɪʃ / "saysh") is a standing wave

in an enclosed or partially enclosed body of water.

http://en.wikipedia.org/wiki/Standing_wave

http://en.wikipedia.org/wiki/Standing_wave

http://en.wikipedia.org/wiki/Wikipedia:IPA_for_English

http://en.wikipedia.org/wiki/Wikipedia:IPA_for_English



The tsunami that hit Hawaii in 1946 had a fifteen-minute interval between wave fronts. The naturalresonant period of Hilo Bay is about thirty minutes.

That meant that every second wave was in phase withthe motion of Hilo Bay, creating a seiche in the bay.

As a result, Hilo suffered worse damage than any

other place in Hawaii, with the tsunami/seichereaching a height of 26 feet along the Hilo Bayfront,

killing 96 people in the city alone. Seiche waves

may continue for several days after a tsunami.

Hilo Bay Seiche

April 1st 1946

http://en.wikipedia.org/wiki/Hilo







http://en.wikipedia.org/wiki/1946

http://en.wikipedia.org/wiki/1946

http://en.wikipedia.org/wiki/Hawaii

http://en.wikipedia.org/wiki/Hawaii



In 1946 a Tsunami hit Princeton By-The-Sea

April 1, 1946

Tsunami DebrisWater Resources Center Archives: Robert L. Wiegel



Princeton By-The-Sea

April 1, 1946

Water Resources Center Archives: Robert L. Wiegel



Romeo Pier: April 1, 1946Water Resources Center Archives: Robert L. Wiegel



Romeo Pier: April 2, 1946 (day after the Tsunami)




Tsunamiwater level

April 1, 1946

Princeton By-The-Sea




Tsunami water level

April 2, 1946 (day after the Tsunami)




“Structures should either be placedat elevations above those likely to be

adversely affected during a tsunami

or seiche event or be designed toallow swift water to flow around,through, or underneath without

causing collapse.”Big Wave Project DEIRIV.H Hydrology & Water QualityPage IV.H-61



ABAG tsunami maps show that the project

would place residential and commercialstructures within a mapped tsunami zone.



Would you want to be trapped withswirling water and debris all around you?

Would you want to desperately try andescape a natural disaster with traffic fromthe office park choking your exit?

How do special needs people get thenecessary evacuation help needed?

Emergency Evacuation



The San Gregorio fault, just off the SanMateo County Coast, has the potential of causing a tsunami with essentially

no warning time.

The San Mateo County Office of Emergency Services (OES) advises thatmembers of the public who are in low-

lying areas immediately head for highground when an earthquake occurs.

Grand Jury Report: 2007Tsunami Alert and Evacuation

San Mateo County Coast

Grand Jury Report



Princeton, Pillar Ridge & Seal Cove only haveONE Tsunami Evacuation Exit



P i l l a r P o i n t

M a r s h

J a m e s V . F i t z g e r a l d

M a r i n e R e s e r v e

Critical Coastal Areas Pilot ProjectSan Francisco Esturay Institute and the

Association of Bay Area Governments, Consultants

For more information, please contact

Eric Zhang, Staff

San Francisco Estuary Institute

7770 Pardee Lane, 2nd FloorOakland, CA 94621

Kathleen Van Velsor, Staff

L e g e n d

Tsunami Evacuation Area

Urban Footprint

BIG WAVE



PrincetonTraffic Bottlenecks

BIG WAVE

BIG WAVE

Tsunami

EvacuationExit

Emergency Evacuation RouteCypress Ave & Highway 1

Traffic Bottleneck



Earthquake and Tsunami

Evacuation

ALL TRAFFIC

in PRINCETON,PILLAR RIDGE and SEAL COVE

MUST USE CYPRESS AVE

as theSOLE EVACUATION ROUTEONTO HIGHWAY 1



Cypress Ave and Highway 1

is a Traffic Bottleneck

How will residents, visitors and employeesevacuate Princeton, Pillar Ridge, Seal Cove, theproposed Big Wave office park and sanitarium

in the event of an earthquake or tsunamiemergency?

How will the current emergency evacuation

route, ONE exit onto Highway 1 and NO trafficlight at Cypress and Highway 1 be adequate inthe event of an earthquake or tsunamiemergency?



Emergency Evacuation RouteCypress Ave and Highway 1

A traffic signal is currently needed at this intersection.











BIG WAVE

BIG WAVE

BIG WAVE

Princeton Traffic Bottlenecks

Princeton Traffic Must Use

Cypress Ave in Seal Cove as

the Earthquake and Tsunami

Emergency Evacuation Route



Princeton TrafficBottlenecks

Prospect at Broadway

Capistrano Rd



James Fitzgerald Marine ReserveCritical Coastal Area

State of CaliforniaArea of Special Biological Significance (ASBS)

part of the federally protectedMonterey Bay National Marine Sanctuary


http://www.sfei.org/



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==1

DRAFT -FOR PLANNING PURPOSES

S A N M A T E O C O U N T Y

Yolo

SonomaNapa

Solano

Santa Clara

Marin

San Joaquin

Alameda

Sacramento

Lake

Contra Costa

Stanislaus

Placer

Santa Cruz

Sutter Mendocino

San Mateo

San Francisco

Critical Coastal AreaBoundary including ASBS

BIG WAVE


www.sfei.org









OFFICE PARK

Fitzgerald Marine ReservePillar Point Wetlands



Pillar Point Wetlands

Area of Special Biological Significance (ASBS) and part of thefederally protected Monterey Bay National Marine Sanctuary

Fitzgerald Marine Reserve

Fitzgerald Marine Reserve CCA



Denniston CreekWatershed

San Vicente CreekWatershed

Montara CreekWatershed

Pillar Point Marsh Watershed

Martini CreekWatershed

San Agustine Creek Watershed

Kanoff Creek

Watershed

Daffodil Creek Watershed

Deer CreekWatershed

Dean Creek* Watershed

SealCove

Watershed

Moss BeachWatershed

Montara UrbanWatershed

Princeton

WatershedHarbor

Watershed

Montara BeachWatershed

0 0.3 0.6 0.90.15Miles

-

gNatural and Artificial Hydrology

0.5

Miles

F Legend

Enclosed pipeline > 24 "

Natural channels and earthen ditches

CCA Boundary

Subwatersheds

Wetland and Riparian Areas

CCA Boundary including ASBS

www.sfei.org

Denniston Creekchd





Denniston CreekWatershed

Pillar Point Marsh WatershedSan Agustine Creek Watershed

Deer Creek

Watershed

d

PrincetonWatershed

Harbor Watershed

0.6 0.9Miles

Miles

Legend

Enclosed pipeline > 24 "

Natural channels and earthen d

CCA Boundary

Subwatersheds

Wetland and Riparian Areas

CCA Boundary including ASBS

BIG WAVE

Pillar Point Marsh Watershed

the San Francisco Estuary Institute

www.sfei.org














A i r p o r t S t r e e t

Riparian Wetland/

Drainage Channel

Active Agriculture

Seasonal Wet Meadow

Riparian Wetland

Riparian Wetland

Pillar Point Marsh

Freshwater Marsh

Active Agriculture

0 400200 300100

Legend

Project Site

Wetland Boundary

BIG WAVE PROJECT SITE

Seasonal Creek

Pillar Point Marsh

Riparian Wetland



Seasonal Creek

S l C k



Seasonal Creek



Thank

You

Sabrina Brennan

S l C M B h

Documents

BIG WAVE PROJECT: Planning Commission Hearing Nov 17 2010