Levees / California / 5205001171

RD 0524 and RD 0544 - Roberts Island

Stockton, San Joaquin County, California. On the Burns Cutoff, Middle River, Old River-San Joaquin River, San Joaquin River, Trapper Slough, Turner Cut, Whiskey Slough. USACE records 831 people living in the area this system is built to protect.

Non-Accredited Levee SystemUSACE oversight
People behind it
831
USACE figure
Structures
441
in the leveed area
Levee length
50.3
miles
Leveed area
55.87
square miles
01

The federal record

System ID
5205001171
System type
Levee System
FEMA accreditation
Non-Accredited Levee System
Screening rating (LSAC)
Moderate
Inspection rating
U
Inspection date
01/16/2015
Rehabilitation programme
Active
Responsible sponsor
CA Department of Water Resources, Central Valley Flood Protection Board, Drexler Tract, RD 0524 - Middle Roberts Island, RD 0544 - Upper Roberts Island, RD 0684 - Lower Roberts Island, RD 2116 - Holt Station, San Joaquin County Public Works
Waterway
Burns Cutoff, Middle River, Old River-San Joaquin River, San Joaquin River, Trapper Slough, Turner Cut, Whiskey Slough
Segments
15
USACE district
Sacramento
USACE division
South Pacific Division
FEMA region
9
Congressional district
09
Consequence estimate
$138.9 million
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 5205001171. 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.