Levees / Louisiana / 4405000515

Mississippi River West Bank - Above Old River

Simmesport, Concordia Parish, Louisiana. On the Mississippi River. USACE records 269,628 people living in the area this system is built to protect.

Accredited Levee SystemUSACE oversight
People behind it
269,628
USACE figure
Structures
148,852
in the leveed area
Levee length
16.1
miles, plus 0.11 of floodwall
Leveed area
787.58
square miles
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The federal record

System ID
4405000515
System type
Levee System
FEMA accreditation
Accredited Levee System
Screening rating (LSAC)
High
Inspection rating
Not published
Inspection date
11/20/2025
Rehabilitation programme
NA
Responsible sponsor
Fifth Louisiana Levee District, USACE - New Orleans District
Waterway
Mississippi River
Segments
1
USACE district
New Orleans
USACE division
Mississippi Valley Division
FEMA region
6
Congressional district
05, 06
Consequence estimate
$22.34 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 4405000515. 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.