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Comprehensive Hurricane Protection Plan for Coastal Louisiana. Objective. Build Hurricane Resistant Communities in Southeast Louisiana. Past Storms. Betsy ’65. Andrew ’92. Camille ’69. Lake Pontchartrain West Shore. Lake Pontchartrain and Vicinity. Schneider Canal. Donaldsonville

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objective

Objective

Build Hurricane Resistant Communities in Southeast Louisiana

past storms
Past Storms
  • Betsy ’65
  • Andrew ’92
  • Camille ’69
slide6

Lake Pontchartrain

West Shore

Lake Pontchartrain

and Vicinity

Schneider Canal

Donaldsonville

to the Gulf

Westbank in the

Vicinity of

New Orleans

Lower Atchafalaya

Reevaluation

Section 205 Studies

New Orleans

to Venice

Morganza to the Gulf

Foundation for a Comprehensive

Hurricane Protection System for

Southeast Louisiana

flood protection
Flood Protection
  • Levees
  • Floodwalls
  • Floodgates
  • Flood Protection System
slide8

Main

Franklin

Pumping Station

Channel

Lake

Palourde

Morgan

City

Intracoastal

Patterson

Hwy 90

Waterway

E. Cote

Blanche

Bay

Wax Lake

Outlet

Lower Atch. R.

Atchafalaya

Bay

Barrier Plan

(Backwater Protection)

Levee System

Lower Atchafalaya Basin Reevaluation

  • Name: Mississippi River and Tributaries, Lower Atchafalaya Basin Reevaluation Study Barrier Plan
  • Purpose: The study is a reevaluation of the existing Atchafalaya Basin Louisiana Project. The purpose is to investigate methods to modify the project in the interest of improving flood protection, navigation, and the environment.
  • Project Features: The recommended plan is envisioned to include modifications to the Lower Atchafalaya River and Wax Lake Outlet through the addition of structures, levees, channel enlargements, and dredging. The recommended plan is envisioned to include a Barrier Levee from just east of Morgan City, Louisiana to the town of Gibson to prevent backwater flooding from the Lower Atchafalaya River. The Barrier Levee is expected to provide Hurricane Protection to residents north of the alignment. The level of hurricane protection is envisioned to be less than 100 years.
  • Project Cost: Estimated cost based on the Morganza to the Gulf, Louisiana Reconnaissance Study completed in April 1994 is $170.0 million.
  • Potential Sponsor: LADOTD, Atchafalaya Levee District, South Terrenbonne Tidewater Management and Conservation District
  • Project Status: Reevaluation Study is underway and is scheduled for completion in December 2000. Depending on Congressional approval and funding, construction could begin in the year 2004.
slide9

Bayou

Thibodaux

Larose to Golden Meadow Levee

Hwy 311

LaFourche

Houma

Hwy 90

.

Chauvin

Houma Navigation Canal

Lake

Boudreaux

Hwy 57 Alignment

Morganza, LA to the Gulf of Mexico

  • Name: Morganza, Louisiana to the Gulf of Mexico
  • Purpose: The study is to determine the feasibility of providing flood protection and improvements to the Water and related land resources in portions of Terrebonne and Lafourche Parishes.
  • Project Features: The recommended plan is envisioned to consist of a hurricane protection levee around Houma and vicinity. The level of protection is expected to be 100 years.
  • Project Cost: Estimated cost based on the Morganza to the Gulf, Louisiana reconnaissance study completed in April 1994 is $400.0 million.
  • Potential Sponsor: LA DOTD, South Terrebonne Tidewater Management and Conservation District
  • Project Status: The study is scheduled for completion in September 2000. Depending on Congressional approval and funding, construction could begin in the year 2004.
slide10

Donaldsonville, LA to the Gulf of Mexico

  • Name: Donaldsonville, Louisiana to the Gulf of Mexico
  • Purpose: The study is to investigate the feasibility of providing flood protection and improvements to water related land resources in portions of Assumption, St. James, St. John the Baptist, Lafourche, St.Charles, Jefferson and Plaquemines.
  • Project Features: The potential recommendation is a project that will reduce flood damage utilizing levees, channel improvements, pumping stations, and water management measurements for environmental restoration.
  • Project Cost: none
  • Project Status: Reconnaissance scope studies will be initiated in January 1999. The reconnaissance study will take 18 months at a cost of $500,000. If an economically feasible and environmentally acceptable plan and a non-Federal sponsor is identified, the study would proceed to feasibility phase studies. The feasibility phase studies will take 3 years and construction would begin in 2007.

Baton Rouge

Lake Pont.

Donaldsonville

New Orleans

Study Area

Gulf of Mexico

slide11

New Orleans

Algiers

LA 39

LA 46

Hwy 90

Mississippi River

Algiers Lock

Gretna

Algiers Canal

Harvey Lock

LA 23

GIWW

Levee and

Floodwall

System

Belle Chasse

Westbank to East

of Harvey Canal

Hurricane Protection

Hero Canal

GIWW

Westbank in the vicinity of New Orleans

Mississippi River

Avondale

Harvey

Westwego

Marrero

Hwy 90

Hwy 90

Harvey Lock

Levee and

Floodwall

System

Harvey Canal

  • Name: West Bank in the vicinity of New Orleans, Louisiana Hurricane Protection Project
  • Purpose: The project will provide standard project hurricane protection to residents in portions of Orleans, Jefferson and Plaquemines Parishes from storm surges from Lakes Cataouatche and Salvador and waterways leading to the Gulf of Mexico.
  • Project Features: The project consists of about 45 miles of earthen levee, 6 miles of floodwall, a sector floodgate in the Harvey Canal just below Lapalco Boulevard and enlargement of a federal levee along Algiers Canal.
  • Project Cost: Total project cost is $294.0 million.
  • Project Sponsor: West Jefferson Levee District and the Louisiana Department of Transportation and Development.
  • Project Status: Construction is underway and scheduled for completion in FY 2018.

Lake Cataoatche

LA 45

Bayou Segnette

Couha Island

Hero Canal

Lake Salvador

Westwego to Harvey Canal

Hurricane Protection

Crown Point

slide12

JEFFERSON PARISH

Tidal Surge Protection

BAYOU DE FAMILLIES

CROWN

POINT

ROSETHORNE

Lake

Salvador

FISHER

BAYOU BARATARIA

BARATARIA

GIWW

GOOSE

BAYOU

THE PEN

LOWER

LAFITTE

Jefferson Parish (CAP Projects)

  • Name: Six Continuing Authorities Program (CAP) Projects in Jefferson Parish on the West Bank Fisher School Basin, Rosethorne Basin, Lower Lafitte, Pailet Basin, Goose Bayou, Crown Point
  • Purpose: The studies are to determine the feasibility of providing flood protection to developed areas along the Barataria Bay Waterway. The flooding is usually associated with tropical/hurricane storms. The level of protection is less than 100 years
  • Project Features: A series of ring levees with associated drainage structures and pump stations around developed areas.
  • Projects Sponsor: West Jefferson Levee District
  • Project Cost: Total project cost for all six areas is estimated at $31.3 million.
  • Project Status: Feasibility Study for Fisher School Basin is scheduled for completion in October 1998 and construction is scheduled for FY 2000. Rosethorne feasibility study is scheduled for completion in January 1999. Construction is scheduled for FY 2001. Feasibility studies on the remaining four areas are scheduled to start in January 1999 and are to be completed in FY 2001. Depending on higher authority approval and funding, construction could begin in FY 2003.
slide13

Larose to Golden Meadow

  • Name: Larose to Golden Meadow, Louisiana Hurricane Protection Project
  • Purpose: The project provides residential and commercial lands along Lower Bayou Lafourche from the 100-year Hurricane surge.
  • Project features: The project consists of a ring levee approximately 40 miles in length encircling the areas along Bayou Lafourche from Larose to Golden Meadow. Floodgates are located at the upper and lower limits of the project.
  • Project Sponsor: South Lafourche Levee District
  • Project Cost: The project cost is $114.0 million.
  • Project Status: Construction is underway and is scheduled for completion in FY 2007.

GIWW

Larose to Golden Meadow

Hurricane Protection

Floodgate

Cutoff

Bayou Lafourche

Golden

Meadow

Levee and

Floodwall

System

Galiano

Floodgate

Catfish

Lake

To Grand Isle

slide14

I-12

Hwy 190

Levee and

Floodwall

System

Schneider Canal

Hurricane Protection

Gause Blvd

Gravity Drainage Structure

LA 433

Liberty Bayou

Slidell

I-10

Pump Station

Bayou Bonfuca

Schneider Canal

LA 433

U.S. 11

Southern Railroad

Lake

Pontchartrain

Eden Isles

Schneider Canal

  • Name: Schneider Canal, Slidell, Louisiana Hurricane Protection (Southeast Louisiana Urban Flood Control Project)
  • Purpose: The project would provide hurricane surge protection for the area of Slidell bounded by the Southern Railroad, Southern Canal, and Interstate Highway 10. The estimated level of protection is a 100 year.
  • Project Features: The hurricane protection plane includes 6.5 miles of levees, 2.5 miles of floodwall, 8 floodgates, 3 major drainage structures, and a number of small culverts. Pumping stations would be provided at Schneider Canal and W-14 if necessary for restoration of pre-project drainage conditions.
  • Project Cost: Estimated cost based on reconnaissance report completed in May 1990 is $ 27.0 million.
  • Potential Sponsor: None
  • Project Status: In the absence of a local sponsor, no work is being performed on the project.
slide15

New Orleans to Venice

Hurricane Protection Project

Phoenix

Reach C

Davant

Pointe a la Hache

MISSISSIPPI

RIVER

St. Jude

Bohemia

West Bank

City Price

River Levee

Port Sulphur

Reach

A

T

ropical Blend

Empire

Reach B-1

Buras

Venice

Reach B-2

New Orleans to Venice

  • Name: New Orleans-Venice, LA Hurricane Protection
  • Purpose: The project will provide protection along the east bank of the Mississippi River from Phoenix, Louisiana, and along the Westbank of the river from St. Jude, Louisiana, down to the vicinity of Venice, Louisiana. The project will provide protection from hurricane tidal overflow for 100-year frequency storms.
  • Project Features: The project consists of 87 miles of enlarged back levees on both sides of the Mississippi River below New Orleans, with associated structures.
  • Project Sponsor: Plaquemines Parish
  • Project Cost: The project cost is $244.0 million.
  • Project Status: Construction is underway and the estimated completion date is FY 2017.
slide16

Mandeville

Lake

Maurepas

Lake

Pontchartrain

Bonnet

Carre’

Spillway

Lake

Borgne

New Orleans

Lake Pontchartrain and Vicinity

Hurricane Protection

Floodwall

and Levee

System

Lake Pontchartrain and Vicinity

  • Name: Lake Pontchartrain, LA and Vicinity Hurricane Protection Project
  • Purpose: The project is designed to protect residents between Lake Pontchartrain and the Mississippi River levee from surge in Lake Pontchartrain driven by storms up to the Standard Project Hurricane.
  • Project Features: A new levee north of Airline Highway (US Hwy. 61) from the Bonnet Carre Spillway East Guide Levee to the Jefferson-St. Charles Parish boundary; a floodwall along the Jefferson-St. Charles Parish line; an enlarged levee along the Jefferson Parish Lakefront; an enlarged levee along the Orleans Parish Lakefront; parallel protection (levees, floodwalls, and floodproofed bridges) along three outfall canals (17th St., Orleans Avenue, and London Avenue); levees from the New Orleans lakefront to the Gulf Intracoastal Waterway (GIWW); enlarged levees along the GIWW and Mississippi River-Gulf Outlet (MRGO); and a new levee around the Chalmette Area. The project also includes a mitigation dike on the west shore of Lake Pontchartrain.
  • Project Sponsor: The Lake Borgne Basin & Levee District, the Orleans Levee District, the East Jefferson Levee District, and the Pontchartrain Levee District are sponsors for the work in St. Bernard, Orleans, Jefferson, and St. Charles Parishes, respectively.
  • Project Cost: The project cost is $734.0 million.
  • Project Status: Construction is underway and scheduled for completion in FY 2013.
slide17

Hwy 22

Hwy 51

Lake

Maurepas

Blind River

Hwy 61

Levee and

Floodwall

System

Lake

Pontchartrain

Hwy 55

I-10

I-10

Bonnet Carre’

Spillway

LaPlace

Illinois Central

Reserve

Convent

I-10

Norco

Waterford

Vacherie

Hwy 61

Lake Pontchartrain West Shore

Hurricane Protection

Hahnville

Kansas City Central

Lake Pontchartrain West Shore

  • Name: Lake Pontchartrain, West Shore Louisiana
  • Purpose: The study is to determine the economic feasibility of providing increased levels of hurricane protection to residents living west of the Bonnet Carre Spillway and north of the Mississippi River. The level of protection is expected to be standard project hurricane.
  • Project Cost: Based on the reconnaissance report completed in June 1997, the estimated Project cost is $57.5 million.
  • Project Sponsor: Lake Pontchartrain Levee District
  • Project Status: The feasibility study was initiated in April 1998 and is scheduled for completion in July 2001 and construction could be initiated in 2005..
slide18

Study For Flood Proofing of

Major Hurricane Evacuation Routes

Red River

Mississippi

Texas

Louisiana

Mississippi River

Atchafalya River

I-55

I-10

I-12

I-10

I-10

Causeway

Hwy 1

GIWW

Hwy 27

Hwy 27

Hwy 90

GIWW

GIWW

Hwy 90

Hwy 46

Hwy 82

Bayou Lafourche

Hwy 301

GIWW

Hwy 23

Hwy 1

Gulf of Mexico

slide19

Lake Pontchartrain

West Shore

Lake Pontchartrain

and Vicinity

Schneider Canal

Donaldsonville

to the Gulf

Westbank in the

Vicinity of

New Orleans

Lower Atchafalaya

Reevaluation

Section 205 Studies

New Orleans

to Venice

Morganza to the Gulf

Foundation for a Comprehensive

Hurricane Protection System for

Southeast Louisiana

Major Hurricane Evacuation Routes

I-55

I-10

I-10

Causeway

I-10

LA 3127

Hwy 308

Hwy 46

Hwy 90

Hwy 301

Hwy 1

Hwy 308

Hwy 90

Hwy 23

Hwy 1

slide23

$ 9,686,168,000

Damages Prevented By

Lake Pontchartrain Vic

Hurricane Protection Project

1983 - 1998