Levees / California / 3805010044

Los Angeles River/Rio Hondo Diversion 1

Paramount, Los Angeles County, California. On the Los Angeles River, Rio Hondo River. USACE records 272,000 people living in the area this system is built to protect.

Provisionally Accredited Levee (PAL) SystemUSACE oversight
People behind it
272,000
USACE figure
Structures
56,146
in the leveed area
Levee length
19.8
miles, plus 10.28 of floodwall
Leveed area
19.91
square miles
01

The federal record

System ID
3805010044
System type
Levee System
FEMA accreditation
Provisionally Accredited Levee (PAL) System
Screening rating (LSAC)
High
Inspection rating
M
Inspection date
07/26/2016
Rehabilitation programme
Inactive
Responsible sponsor
Los Angeles County Department of Public Works
Waterway
Los Angeles River, Rio Hondo River
Segments
2
USACE district
Los Angeles
USACE division
South Pacific Division
FEMA region
9
Congressional district
38, 42, 43, 44
Consequence estimate
$14.00 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 3805010044. 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.