Levees / Missouri / 5105140001

Gregory DD

Clark County, Missouri. On the Mississippi River. USACE records 5 people living in the area this system is built to protect.

See FIRM Panel for more informationUSACE oversight
People behind it
5
USACE figure
Structures
11
in the leveed area
Levee length
11.4
miles, plus 0.15 of floodwall
Leveed area
14.27
square miles
01

The federal record

System ID
5105140001
System type
Levee System
FEMA accreditation
See FIRM Panel for more information
Screening rating (LSAC)
Low
Inspection rating
M
Inspection date
10/29/2014
Rehabilitation programme
Active
Responsible sponsor
Gregory Drainage and Levee District
Waterway
Mississippi River
Segments
2
USACE district
Rock Island
USACE division
Mississippi Valley Division
FEMA region
7
Congressional district
06
Consequence estimate
$1.7 million
Flood of record
06/22/2008

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 5105140001. 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.