Levees / Sponsors / CA Department of Water Resources, Central Valley Flood Protection Board, RD 0404 - Boggs Tract, RD 0551 - Pierson District, RD 0554 - Walnut Grove, RD 0556 - Upper Andrus Island, RD 1001 - Nicolaus, San Joaquin Area Flood Control Agency, San Joaquin County FC and WCD, San Joaquin County Public Works
CA Department of Water Resources, Central Valley Flood Protection Board, RD 0404 - Boggs Tract, RD 0551 - Pierson District, RD 0554 - Walnut Grove, RD 0556 - Upper Andrus Island, RD 1001 - Nicolaus, San Joaquin Area Flood Control Agency, San Joaquin County FC and WCD, San Joaquin County Public Works
Named on the federal register as responsible for 1 levee system in California, with 129,240 people recorded in the leveed areas.
Systems
1
on the register
People behind them
129,240
across 1 that publish it
Not enrolled
0
outside PL 84-99
No inspection rating
0
none published
01
Systems
1 records| System | Location | Accreditation | Programme | People | Length |
|---|---|---|---|---|---|
| Mormon Slough-Calaveras left bank - RD 0404 - Duck Creek | Stockton, San Joaquin County, California | See FIRM Panel for more information | Active | 129,240 | 24.1 miles |
Source: USACE National Levee Database, refreshed 2026-09-10.