Levees / Minnesota / 5705000012

Mississippi River - Winona City & Prairie Island

Winona, Winona County, Minnesota. On the Mississippi River. USACE records 23,769 people living in the area this system is built to protect.

Accredited Levee SystemUSACE oversight
People behind it
23,769
USACE figure
Structures
5,822
in the leveed area
Levee length
10.3
miles, plus 0.50 of floodwall
Leveed area
9.32
square miles
01

The federal record

System ID
5705000012
System type
Levee System
FEMA accreditation
Accredited Levee System
Screening rating (LSAC)
Low
Inspection rating
M
Inspection date
04/12/2010
Rehabilitation programme
Active
Responsible sponsor
City of Winona, USACE - St Paul District
Waterway
Mississippi River
Segments
2
USACE district
St. Paul
USACE division
Mississippi Valley Division
FEMA region
5
Congressional district
01
Consequence estimate
$1.54 billion
Flood of record
04/19/1965

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 5705000012. 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.