Water Sector Presentation II for ABAG Interdependencies Workshop I
Doing Business After a Major Bay Area Earthquake JEANNE PERKINS ABAG Earthquake Program Manager.
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Transcript of Doing Business After a Major Bay Area Earthquake JEANNE PERKINS ABAG Earthquake Program Manager.
![Page 1: Doing Business After a Major Bay Area Earthquake JEANNE PERKINS ABAG Earthquake Program Manager.](https://reader030.fdocuments.net/reader030/viewer/2022032605/56649e865503460f94b889f3/html5/thumbnails/1.jpg)
Doing BusinessDoing Business After a Major Bay After a Major Bay Area Earthquake Area Earthquake
JEANNE PERKINSABAG Earthquake Program
Manager
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What Are Natural What Are Natural HAZARDS? HAZARDS?
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Earthquake-Related Hazards Ground
Shaking Fault Rupture Liquefaction Landslides Tsunamis
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Weather-Related Hazards
Flooding Landslides Wildfires Drought
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What Are What Are the HAZARDS the HAZARDS
in MY Area? in MY Area?
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Transportation Transportation ImpactsImpacts
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2 PAST EARTHQUAKES 142 road closures in Loma Prieta 140 road closures in Northridge
18 FUTURE EARTHQUAKES 17 Bigger than these earthquakes 0 Bigger than New Orleans
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What Happens - M 7.9 on San Andreas Fault --
1,330 total closures Problems along I-280
and Hwy. 101 in San Mateo Co.
San Francisco a mess San Mateo and Marin
county coasts isolated Problems near Bay at
OAK, SFO and SJC
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What Happens - M 6.9 on Entire Hayward Fault --
1,650 total closures Most toll bridges not
usable Some problems in the
Hwy. 101 and 37 corridors in Marin, SF and San Mateo counties
Entire East Bay isolated
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Recovery Timeline
0
20
40
60
80
100
120
1 14
27
40
53
66
79
92
105
118
131
144
157
170
183
196
209
Number of Days After the Earthquakes
Nu
mb
er
of
Str
eet
an
d F
reew
ay C
losu
res
Loma Prieta
Northridge
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What Does This Mean? There were only 142 road closures
in Loma Prieta. There were only 140 road closures
in Northridge. Our model for predicting the
potential impacts of these closures should be Kobe, not either of these California earthquakes.
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Utility System Utility System ImpactsImpacts
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Liquefaction - Results
Selected Damage to FoundationsRoads & SidewalksSand boilsPipeline Breaks
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What Happened in the “Very High” Liquefaction Areas - Loma Prieta Quake
Water - 4-5 times more breaks
Natural Gas - 3 - 11 times more breaks
Roads - 1.3 times more surface, but 25 times more costly
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Liquefaction Hazard - Loma Prieta Versus Entire Hayward
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Airport System Airport System ImpactsImpacts
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What Happens - M 7.9 on Entire Bay Area San Andreas Fault SFO probably
CLOSED
OAK probably CLOSED
SJC disruption - should be OK due to retrofit completed in 2003.
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What Happens - M 6.9 on Entire Hayward Fault SFO probably
disruption
OAK probably CLOSED
SJC disruption - should be OK due to retrofit completed in 2003.
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HousingHousing ImpactsImpacts
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2 PAST EARTHQUAKES 16,000 Uninhabitable Housing Units Due
to the Loma Prieta Earthquake 48,000 Uninhabitable Housing Units Due
to the Northridge Earthquake
18 FUTURE EARTHQUAKES 13 Bigger than Loma Prieta 8 Bigger than Northridge 0 Bigger than New Orleans
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What Happens - M 7.9 on Entire Bay Area San Andreas Fault
159,900 uninhabitable housing units
(300,000 – Katrina)
359,000 people displaced
105,700 peak shelter population
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What Happens - M 6.9 on Entire Hayward Fault 155,700
uninhabitable housing units
300,000 - Katrina
356,600 people displaced
110,300 peak shelter population
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Single Family Homes
9% of the problem in the Hayward Nightmare
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Mobile Homes
7% of the problem in the Hayward Nightmare
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Multifamily Wood-Frame
66% of the problem in the Hayward Nightmare
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Unreinforced Masonry
8% of the problem in the Hayward Nightmare
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Other Non-Wood Multi-Family
10% of the problem in the Hayward Nightmare
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Multifamily vs. Single-Family
84% of the problem in the Hayward Nightmare
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The Nightmare Goes On and On...
Peak Shelter Population
020000400006000080000
100000120000
Northridge
The HaywardEarthquake"Nightmare"
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The Nightmare Goes On and On...
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Who Has the Nightmare?
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What is the role of What is the role of business after a business after a
disaster?disaster?
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Where is ABAG’s Local Hazard Mitigation Plan information on the internet?
http://quake.abag.ca.gov
As well as “special” info at http://quake.abag.ca.gov/business
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Save the Date – Save the Date – Thursday, April 20 – (Day Thursday, April 20 – (Day
3 of the Mega-3 of the Mega-Conference) Conference)