Levees / Washington / 5505000024

Skagit County Dike District No. 9 / 1 / 12

Mount Vernon, Skagit County, Washington. On the Skagit River. USACE records 15,804 people living in the area this system is built to protect.

Non-Accredited Levee SystemFederally built
People behind it
15,804
USACE figure
Structures
7,210
in the leveed area
Levee length
14.5
miles
Leveed area
59.23
square miles
01

The federal record

System ID
5505000024
System type
Levee System
FEMA accreditation
Non-Accredited Levee System
Screening rating (LSAC)
Moderate
Inspection rating
Not published
Inspection date
Not published
Rehabilitation programme
Active
Responsible sponsor
Skagit County Dike District No. 1, Skagit County Dike District No. 12, Skagit County Dike District No. 9
Waterway
Skagit River
Segments
3
USACE district
Seattle
USACE division
Northwestern Division
FEMA region
10
Congressional district
02
Consequence estimate
$2.49 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 5505000024. 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.