Levees / Louisiana / 4405000557

New Orleans West Bank

Marrero, Jefferson Parish, Louisiana. On the Gulf of America, Gulf of America, Mississippi River, Mississippi River. USACE records 248,334 people living in the area this system is built to protect.

Accredited Levee SystemUSACE oversight
People behind it
248,334
USACE figure
Structures
90,436
in the leveed area
Levee length
89.1
miles, plus 20.20 of floodwall
Leveed area
122.88
square miles
01

The federal record

System ID
4405000557
System type
Levee System
FEMA accreditation
Accredited Levee System
Screening rating (LSAC)
High
Inspection rating
M
Inspection date
10/25/2010
Rehabilitation programme
NA
Responsible sponsor
Lafourche Basin Levee District, Plaquemines Levee District, Southeast Louisiana Flood Protection Authority - West, St. Charles Parish
Waterway
Gulf of America, Gulf of America, Mississippi River, Mississippi River
Segments
7
USACE district
New Orleans
USACE division
Mississippi Valley Division
FEMA region
6
Congressional district
01, 02
Consequence estimate
$19.96 billion
Flood of record
Not published

What this page does not tell you

It does not say whether any particular address is protected. A FEMA accreditation status describes this system measured against a design flood event, and USACE states that the database may not represent the totality of levees in the United States. If you need to know what applies to a specific property, your local floodplain administrator holds that answer. How to read an accreditation status.

02

Where it is

Source: USACE National Levee Database, system 4405000557. Refreshed 2026-09-10. Values are reproduced as published. USACE updates the database irregularly and without a change feed, so the refresh date above is the age of what you are reading.