Get Prepared for El Nio December 10, 2015 Berkeley Unified School - - PowerPoint PPT Presentation

▶
get prepared for el ni o
SMART_READER_LITE
LIVE PREVIEW

Get Prepared for El Nio December 10, 2015 Berkeley Unified School - - PowerPoint PPT Presentation

Jan 07, 2023 480 likes •1.02k views

Community Workshop: Get Prepared for El Nio December 10, 2015 Berkeley Unified School District Boardroom A resilient community is prepared for a range of potential shocks and stresses. ACUTE SHOCKS CHRONIC STRESSES Flooding Drought

slide-1
SLIDE 1

Community Workshop: Get Prepared for El Niño

December 10, 2015 Berkeley Unified School District Boardroom

slide-2
SLIDE 2

Flooding Tornado Earthquake Heat wave Extreme Cold Hazardous materials accident Hurricane Severe storms and extreme rainfall Terrorism Disease outbreak Riot/civil unrest Infrastructure or building failure Drought Rising sea level Fuel poverty Homelessness & lack of affordable housing Changing demographics Lack of social cohesion Water and air pollution High unemployment Poverty/inequity Aging Infrastructure Shifting macroeconomic trends Crime & violence Food shortage

A resilient community is prepared for a range of potential shocks and stresses.

CITY

ACUTE SHOCKS CHRONIC STRESSES

slide-3
SLIDE 3

The City is advancing multi-benefit solutions to the challenge of flooding

Bio-swale at California and Allston

  • “Green infrastructure”
  • Storm water capture

and reuse

  • Evaluating impacts of

sea level rise and extreme precipitation

slide-4
SLIDE 4

Berkeley Flooding

High Tides, Heavy Rain, El Niño

Kris May, Ph.D. P.E. AECOM

slide-5
SLIDE 5

What Makes Berkeley Vulnerable?

  • Heavy Rainfall
  • High Bay Tides
  • Low-lying Topography
  • Clogged Storm

Drains

  • Overwhelmed

Infrastructure … then add El Niño

slide-6
SLIDE 6

What is El Niño

  • Oscillation of ocean and

atmospheric conditions in the Pacific (~3 to 7 years)

  • Unusually warm water

along the Equatorial Pacific

  • Intense rainfall and

higher Bay water levels along our coastline

slide-7
SLIDE 7

Ocean Niño Index

  • Strongest El Niños
  • n Record

– 1982/1983 – 1997/1998

  • 2015 – 2016 may

break the record

slide-8
SLIDE 8

How long will El Niño last?

slide-9
SLIDE 9

2015 – 2016 El Niño

  • NOAA predicts 95% chance El Niño will

continue through the Winter (~March)

  • El Niño will gradually weaken through

Spring/Summer (~May/June)

  • El Niño conditions bring heavy rainfall

coupled with elevated Bay water levels

slide-10
SLIDE 10

December 11, 2014

  • Heavy rainfall (i.e., 25-year)
  • 18” inches of storm surge

(i.e., 5-year)

  • Baywide flooding in low-

lying areas

slide-11
SLIDE 11

Monthly Berkeley Rainfall

December 2014

slide-12
SLIDE 12

December 2014 Rainfall

slide-13
SLIDE 13

December 2014 Wind Gusts

slide-14
SLIDE 14

Water flows into Storm Drains

slide-15
SLIDE 15

Storm Drains flow out to the Bay

slide-16
SLIDE 16

When Storm Drains Can’t Drain

  • Storm drain outlets submerged at high tides
  • Storm drain inlets are clogged
  • Flooding occurs in low-lying areas
slide-17
SLIDE 17

When Storm Drains Can’t Drain

Most infrastructure was designed and constructed to past conditions with lower Bay water levels

slide-18
SLIDE 18

Bay Tide Levels

  • High Tides have risen by 8 inches over the

past ~100 years

  • High Tides may rise by 12 to 24 inches by

2050

  • December 11th storm had 18 inches of storm

surge (18 inches above normal tide levels!)

  • High tides could rise by 36 to 66 inches by

2100

slide-19
SLIDE 19

High Tide (King Tide) Flooding

slide-20
SLIDE 20

December 11, 2014

  • Heavy Rainfall
  • High Bay Tides
  • Low-lying Topography
  • Clogged Storm

Drains

  • Overwhelmed

Infrastructure

slide-21
SLIDE 21

Ashby Avenue, Berkeley

20

slide-22
SLIDE 22

Ashby Avenue, Berkeley

slide-23
SLIDE 23

Mill Valley, CA

slide-24
SLIDE 24

High Street, Oakland

slide-25
SLIDE 25

Turn Around Don’t Drown

slide-26
SLIDE 26

What Makes Berkeley Vulnerable?

  • Heavy Rainfall
  • Clogged Storm

Drains

  • Overwhelmed

Infrastructure

  • High Bay Tides
  • Low-lying Topography

… then add El Niño

slide-27
SLIDE 27

Clogged Storm Drains

slide-28
SLIDE 28

Clear Drains BEFORE it Rains

slide-29
SLIDE 29

Urban Flooding

  • Urban flooding is already a

problem in Berkeley

  • Urban flooding may be

severe during El Niño with winter storm conditions

  • Its going to get worse with

climate change

  • Our response this winter

will better prepare us for the future

slide-30
SLIDE 30

PUBLIC WORKS STORM PREPAREDNESS

Phil Harrington & Kem Loong Department of Public Works, City of Berkeley

slide-31
SLIDE 31

STORM DRAIN MAINTENANCE PROGRAM

STREET SWEEPING AND LEAF REMOVAL STORM DRAIN INLET CLEANING STORM DRAIN CULVERT CLEANING

slide-32
SLIDE 32

STORM DRAIN MAINTENANCE PROGRAM

7,000 STORM DRAINS CLEANED ANNUALLY 6,400 MILES SWEPT AND 2,000 TONS OF DEBRIS REMOVED FROM CITY STREETS

slide-33
SLIDE 33

GREEN INFRASTRUCTURE MAINTENANCE

VINE AND SPRUCE ALLSTON WAY AND CALIFORNIA

slide-34
SLIDE 34

AQUATIC PARK LAGOON TIDE GATES

Measures and regulates water releases through tidal gates to minimize flooding of Bolivar Street while maintaining depth for recreational boating uses.

slide-35
SLIDE 35

STORM PROJECTS

PARK HILLS CULVERT 4th STREET HILGARD CULVERT TRASH RACK

slide-36
SLIDE 36

STORM PROJECTS

WOODHAVEN

9th AND ALLSTON WAY

slide-37
SLIDE 37

STORM PREPARATION

TRIM TREES CHECK ROOF AND DRAINS MOVE CARS FOR STREET SWEEPING AND REMOVE LEAVES UNDER WHEELS

slide-38
SLIDE 38

STORM PREPARATION

BACK-UP SUMP PUMP SYSTEM GET YOUR SANDBAGS EARLY VOLUNTEER

slide-39
SLIDE 39

RAIN GUTTERS OR ROOF DRAINS

  • Drain roof drains away

from property to street gutter or storm drain.

  • Do not drain roof drains

directly onto neighbors property or sanitary sewer system.

slide-40
SLIDE 40

SANDBAGGING

slide-41
SLIDE 41

HILL SLIDE PREPAREDNESS AND AWARENESS

  • Build an emergency kit and family

communications plan

  • Learn if you are in a debris flow zone

(http://landslides.usgs.gov/state_local/sanfran cisco.php)

  • Consult a professional for advice on

appropriate measures for your hillside

  • Protect your property by planting ground

cover on slopes.

  • Look for changes in landscape, changes in

water runoff, land movement, small slides, or leaning trees

  • Take notice if doors or windows jam for the

first time.

slide-42
SLIDE 42

Better Safe than Soggy

Khin Chin, Office of Emergency Services, City of Berkeley

slide-43
SLIDE 43

Prepare your family

  • Prepare to shelter in place

– Don’t get bored – Phone chargers

  • Your neighbors

– Who has special needs? / Buddy System – Children, elderly, pets

  • Copies of important documents
  • Emergency Notification

– BENS, Radio 1610am, City website

Photo: Petattack.com

slide-44
SLIDE 44

Prepare your home

  • Sandbags
  • Plywood
  • Clear rain gutters
  • Keep rake handy
  • Check homeowners insurance policy
  • Use extreme caution entering flood damaged

buildings

– Hidden damage, electrical systems, undermine foundation

slide-45
SLIDE 45

Getting to work

  • Safe Driving
  • Pay attention to school announcements

– Alternative childcare

  • Prepare your family and home

Photo: abc7news.com Photo: cragmont.org

slide-46
SLIDE 46

Driving safely

  • Wet driving conditions – debris, mud,

downpours

  • Windshield wipers
  • Flashlight in Car
  • Safety Kits in Car
  • Fill up the gas
slide-47
SLIDE 47

Turn Around, Don’t Drown

  • Do not drive around barricades
  • NEVER drive through flooded roadways
  • 12-24 in of water can move vehicle.
  • Stay out of flood waters,

– 6 inches of water can knock you off your feet – Contamination

  • Downed powerlines

Photo: Jennifer Lazo

slide-48
SLIDE 48

Power Outage

  • Disaster preparedness kit
  • Battery-powered radio
  • Store extra batteries, lights (not candles),

power banks for phones

  • Operate generators outdoors, never inside
  • Keep freezer and refrigerator closed

– Before the storm, fill up any open spaces in freezer with sturdy water bottles

  • Know signs of hypothermia
slide-49
SLIDE 49

311 Not 911

  • 311 –Non-Emergency City Services

– Access City Services – Report Problems – Request Information

  • 911 – Emergency Services

– Current or imminent threat to life or property – Non-Emergency Police or Fire calls – 981-5900

slide-50
SLIDE 50

Community-wide effort

  • Take care of debris on your property

– Leaves – Tree trimming – Household Hazardous Waste

  • Volunteers

– Adopt a Drain – CERT

slide-51
SLIDE 51

Please share your questions and ideas.

slide-52
SLIDE 52

Timothy Burroughs

  • Asst. to City Manager/Chief Resilience Officer

City of Berkeley tburroughs@cityofberkeley.info 510.981.7437