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Presentation by Joseph Suhayda, Hurricane Flooding Consultant, State of Louisiana.
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Joseph N. SuhaydaMay 31, 2011
South East Louisiana Coast (LANDSAT 1993)
Prepared by NSEL/LWRRI/LSU
Multiple Lines of DefenseMultiple Lines of Defense
Base Flood ElevationBase Flood Elevation
PPSIPPPSIP ConceptualConceptual Restoration PlanRestoration Plan
DRAFT
Plan 4 Bathymetry
1.0
0.5
0.0
-0.5
-1.0
Base Bathymetry
Difference
Difference, m
Increased elevation
Decreased elevation
10.0
5.0
0.0
-2.0
Depth, m
Land
Water
0
-2
10Initial
Final
Final-Initial=-12 (negative: land built)
DRAFT
Track 025
Track 108
Track 126
Track 150Selected Storms(~ 100 yr)
DRAFT
Base Condition Plan 4 Condition
Difference
Maximum Surge Envelope Storm 025
Difference, m
Track 025Track 108
Track 126
Track 150
DRAFT
Wave Height Analysis Flood Insurance Study Wave Height Analysis Flood Insurance Study
WHAFIS Wave Heights
0
1
2
3
4
5
6
7
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500
Distance, ft
Wav
e H
eig
ht,
ft
Open Water
Bay
Marsh
Trees
Cross-Cross-sectionsection
ObliqueObliqueViewView
Plaquemines Parish Coastal Plaquemines Parish Coastal Restoration Restoration
Proposed Wetland Vegetation Proposed Wetland Vegetation PlanPlan
WHAFIS Wave Heights
0
1
2
3
4
5
6
7
8
0 1000 2000 3000 4000 5000 6000 7000
Distance, ft
Wav
e H
eigh
t, ft
Open Water
Plan A
Plaquemines Parish Protection & Restoration ProgramPlaquemines Parish Protection & Restoration ProgramReach B-2Reach B-2
Reach B-2 (Forested Ridge)Approximately : 8 Miles in Length 500 Feet Wide 10 Feet High 8.5 Million Cubic Yards of Fill Cost: $ 50 Million
Multiple Lines of Defense PlanMultiple Lines of Defense Plan
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