Plaquemines Parish Plaquemines Parish Strategic Implementation Strategic Implementation

PlanPlanStorm Surge Protection through Storm Surge Protection through

Sustainable EcosystemsSustainable Ecosystems

Plaquemines Strategic Plaquemines Strategic Implementation Plan GoalsImplementation Plan Goals

Sustainable Coastal RestorationSustainable Coastal Restoration

Lower Advisory Base Flood ElevationsLower Advisory Base Flood Elevations

Facilitate Joint Project Development with CPRA Facilitate Joint Project Development with CPRA and Corps of Engineersand Corps of Engineers

Planning ApproachPlanning ApproachCollaborative EngagementCollaborative Engagement

Storm Surge ModelingStorm Surge Modeling Multiple Lines of DefenseMultiple Lines of Defense

Coastal Protection Coastal Protection & Restoration & Restoration

AuthorityAuthority

USACE Modeling SupportUSACE Modeling Support

FEMA Review of ProcessFEMA Review of Process

Multiple ScenariosMultiple Scenarios

Corps of Corps of Engineers:Coastal Engineers:Coastal

Restoration & Restoration & Protection Protection

Technical ReportTechnical Report

Lines of DefenseLines of Defense

Multiple Lines of DefenseMultiple Lines of Defense

Base Flood ElevationBase Flood Elevation

PPSIPPPSIP ConceptualConceptual Restoration PlanRestoration Plan

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

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

5500

6000

W P

t a la

Hac

he

Naom

i Div

Caern

arvo

n Div

Scofie

ld Is

l

White

's Ditc

h

E Gra

nd Is

le

B Lam

oque

Div

P Cha

land-

Gra

nd B P

BI

Ft. St.

Philip

Fringe

Mar

sh R

epai

r

Bastia

n Bay

BI W

Bastia

n Bay

BI E

P Le

Mer

-Cha

land

P BI

Pelica

n Is

landBI

Ft. St.

Philip

Delta

-Mgt

Bohem

ia

GROUPED PROJECTS

AC

RE

S

Enhanced Restoration

Authorized Restoration

# Total Restoration (Ac)

2000

5700

1200

525 500 325

800

1400

425642

325

900

425 525

200

1000

Plaquemines Parish Restoration-Protection Project

Status Report

6 February 2009

Ty V. Wamsley, Mary A. Cialone, and Alison I. Sleath

Base Bathymetry Improved Bathymetry

Difference

Difference, m

Depth, m

Increased elevation

Decreased elevation

Land

Water

0

-2

10Initial

Final

Final-Initial=-12 (negative: land built)

Base Plan 1

Track 025

Track 108

Track 126

Track 150Selected Storms(~ 100 yr)

Maximum Surge Envelope Storm 025

Base Condition Plan1 - Final

Difference

Max: 1.25-1.50 m

Maximum Wave Envelope Storm 025

Base Condition Plan1 - Final

Difference

S grid