SLIDE 1 Performance of the Performance of the New Orleans Flood Control System: New Orleans Flood Control System: Hurricane Katrina Hurricane Katrina
Presented to the Senate Committee on Homeland Security Presented to the Senate Committee on Homeland Security and Governmental Affairs and Governmental Affairs November 2, 2005 November 2, 2005 Washington DC Washington DC
http: / / www.noaanews.noaa.gov/ stories2005/ s2506.htm
SLIDE 2 Levee Assessment Team Levee Assessment Team
ASCE (Geo-
Institute & COPRI)
- NSF (UC Berkeley, CA DWR)
NSF (UC Berkeley, CA DWR)
Leading experts in geotechnical Leading experts in geotechnical engineering, hydraulics, and systems engineering, hydraulics, and systems
SLIDE 3
17 17th
th Street Canal
Street Canal
SLIDE 4
17 17th
th Street Canal
Street Canal
SLIDE 5
17 17th
th Street Canal
Street Canal
SLIDE 6
London Avenue Canal, North Breach London Avenue Canal, North Breach
SLIDE 7
London Avenue Canal, North Breach London Avenue Canal, North Breach
SLIDE 8
London Avenue Canal, North London Avenue Canal, North
Across from Breach Across from Breach
SLIDE 9
London Avenue Canal, North London Avenue Canal, North
Across from Breach Across from Breach
SLIDE 10
London Avenue Canal, North London Avenue Canal, North
Across from Breach Across from Breach
Sinkholes
SLIDE 11 London Avenue Canal, North London Avenue Canal, North
Across from Breach Across from Breach
Heave Boils
SLIDE 12
London Avenue Canal, South Breach London Avenue Canal, South Breach
SLIDE 13
London Avenue Canal, South Breach London Avenue Canal, South Breach
SLIDE 14 Modelled Modelled Storm Surge Heights Storm Surge Heights
Hurricane Katrina Surge at the Industrial Canal & Lake at the 17th Street Ca IC-Peak at 0830 AM; Lake Peak 0900 AM 2 4 6 8 10 12 14 16 8/30/09 0:00 8/30/09 6:00 8/30/09 12:00 8/30/09 18:00 8/31/09 0:00 Date & Time (CDT
Lake @ 17th Canal N206324
SLIDE 15 Modeled Storm Surge Modeled Storm Surge
Courtesy LSU Hurricane Center
SLIDE 16 Modelled Modelled Storm Surge Storm Surge
Courtesy LSU Hurricane Center
SLIDE 17
Levee Breaches Levee Breaches
SLIDE 18
SLIDE 19
Embankment Overtopping Embankment Overtopping
SLIDE 20
Overtopped Embankment (Sand Core) Overtopped Embankment (Sand Core)
SLIDE 21
Overtopped Embankment (Sand Core) Overtopped Embankment (Sand Core)
SLIDE 22
Embankment Successes Embankment Successes
SLIDE 23
Inner Harbor Navigation Channel Inner Harbor Navigation Channel
(Industrial Canal) (Industrial Canal)
SLIDE 24
Inner Harbor Navigation Channel Inner Harbor Navigation Channel
Lower 9th Ward Lower 9th Ward
SLIDE 25
Lower 9th Ward Lower 9th Ward
SLIDE 26
Inner Harbor Navigation Channel Inner Harbor Navigation Channel
Back Scour at Lower 9th Ward Back Scour at Lower 9th Ward
SLIDE 27
MRGO, North Bank (New Orleans East): MRGO, North Bank (New Orleans East):
Overtopping Back Scour Overtopping Back Scour
SLIDE 28
MRGO, North Bank (New Orleans East): MRGO, North Bank (New Orleans East):
Floodwall Overtopping Failure Floodwall Overtopping Failure
SLIDE 29
Common Transition Problems Common Transition Problems
SLIDE 30
Common Transition Failures Common Transition Failures
SLIDE 31
Common Transition Failures Common Transition Failures
SLIDE 32
Common Transition Failures Common Transition Failures
SLIDE 33
Complex Transitions Complex Transitions
