Levees / By county / Napa County, CA
Levee systems in Napa County, CA
14 systems on the federal register here, with 8,023 people recorded behind them.
| System | Location | Accreditation | People | Length |
|---|---|---|---|---|
| Napa River Hatt to 1st Street floodwall | Napa, Napa County, California | Non-Accredited | 3,058 | Not published |
| Lake Park | Napa, Napa County, California | Non-Accredited | 1,682 | 0.97 miles |
| Napa Dry Bypass, Right (west) Bank | Napa, Napa County, California | Non-Accredited | 1,274 | Not published |
| Napa Dry Bypass, Left (east) Bank | Napa, Napa County, California | Non-Accredited | 622 | Not published |
| Napa River Left Bank (Tulocay Creek & Below) | Napa, Napa County, California | Non-Accredited | 555 | 1.08 miles |
| St. Helena Flood Protection Project | St. Helena, Napa County, California | Accredited | 388 | 0.55 miles |
| Yountville Flood Barrier | Yountville, Napa County, California | Accredited | 374 | Not published |
| Napa County Levee 8 | Yountville, Napa County, California | Non-Accredited | 34 | 2.09 miles |
| Napa County Levee 16 | Yountville, Napa County, California | Non-Accredited | 31 | 2.11 miles |
| Napa County Levee 10 | Napa, Napa County, California | Non-Accredited | 2 | 0.47 miles |
| Napa County Levee 15 | Rutherford, Napa County, California | Non-Accredited | 2 | 0.84 miles |
| Napa County Levee 13 | Napa, Napa County, California | Non-Accredited | 1 | 0.56 miles |
| Napa County Levee 14 | Oakville, Napa County, California | Non-Accredited | 0 | 0.64 miles |
| Napa County Levee 9 | Oakville, Napa County, California | Non-Accredited | 0 | 1.20 miles |
Source: USACE National Levee Database, refreshed 2026-09-10.