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Building ResilienceWorkshop II

Larry S. Buss, P.E., CFM, D.WRE.

Concepts To Achieve Flood Resilience

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City of New

OrleansGround Elevations

From Canal St. at

Mississippi River to the

Lakefront at

U.N.O.

          R          I          V

          E          R

           B         A          N          K

 

NEWORLEANS

 A

BLAKE PONCHARTRAIN

          R  . 

 A

BPROJECT DESIGNFLOWLINE (20 FEET)

   D   E   R   B   I   G   N   Y   A   T   I  -   1   0

   E   S   P   L   A   N   A   D   E   A   T

   S   T .   C   L   A   U   D   E

   C   A   N   A   L   S   T   A   T   R   I   V   E   R

   S   T   L   O   U   I   S

   C   A   T   H   E   D   R   A   L

   G   E   N   T   I   L   L   Y   B   L   V   D

   A   T   A   L   L   E   N

   D   I   L   L   A   R   D   U   N   I   V

   C   A   M   P   U   S

   S   T   A   N   T   H   O   N   Y   A   T

   W   I   L   D   A   I   R   D   R

   W   A   I   N   R   I   G   H   T   D   R

   A   T   L .   C .   S   I   M   O   N

   U   N   O   S   I   D   E   O   F

   W   A   I   N   R   I   G   H   T   D   R

LONDON AVENUE CANAL FLOODWALL

HURRICANE LEVEE / FLOODWALL (14.0 FEET)

INTERIM LEVEL PROTECTION (10.0 FEET)

30

20

10

0

-10

-20

30

20

10

0

-10

-20

   E   L   E   V   A   T   I   O   N   S   I   N   F   E   E   T   N   G   V

   D

FLOODWALL ALONG

MISSISSIPPI RIVER

23

FT

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Basic Resilience Approaches

•  Nonstructural Measures

•  Structural Measures

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Basic Flood Risk Equation

Flood Risk = Flood Frequency X Consequences

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WE NEED TOCOMMUNICATE

"NO FLOOD RISK"

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We Need to Make Political Support for

NO FLOOD RISK 

"politically safe"

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2050

CurrentTrend

No FloodRisk National

Objective

Flood Damage

1900-2050

?

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•  Sound Flood Risk Management IsMore Difficult To Attain Than It

Should Be Because Of The Bias

Toward Decisions That ReflectShort Term Economic/Political

Gain And put aside the Long Term

Economic/Political Cost.

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