| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|
| Bair Road Bridge | Bair Road (IRR) over Redwood Creek | Open to traffic | Pony truss | 1951 | -- | 100.1 ft. | 144.0 ft. |
| Bald Hills Road Bridge | Bald Hills Road over Klamath River | Open to traffic | Deck truss | 1959 | -- | 299.9 ft. | 793.0 ft. |
| Bertas Road Bridge | Bertas Road over Elk River | Open to traffic | Through truss | 1936 | -- | 51.8 ft. | 129.9 ft. |
| Bluff Creek Bridge | CA 96 over Bluff Creek | Open to traffic | Steel arch | 1967 | -- | 273.0 ft. | 400.9 ft. |
| Briceland Road Bridge | Briceland Road over Redwood Creek | Open to traffic | Arch | 1935 | -- | 69.9 ft. | 74.2 ft. |
| Brookwood Drive Bridge | Brookwood Drive over Jacoby Creek | Open to traffic | Through truss | 1967 | -- | 60.0 ft. | 67.9 ft. |
| Butler Valley Road Bridge | Butler Valley Road over Mad River | Open to traffic | Arch | 1937 | -- | 132.9 ft. | 203.1 ft. |
| Butler Valley Road Bridge | Butler Valley Road over Maple Creek | Open to traffic | Arch | 1929 | -- | 60.0 ft. | 82.0 ft. |
| Chezem Road Bridge | Chezem Road over Redwood Creek | Open to traffic | Pratt through truss | 1916 | -- | 120.1 ft. | 124.0 ft. |
| Eel River Bridge | CA 283 over Eel River & NWP Railroad | Open to traffic | Through truss | 1941 | -- | 321.9 ft. | 1195.9 ft. |
| Eel River Bridge | US 101 over Eel River | Open to traffic | Through truss | 1941 | -- | 304.1 ft. | 1643.1 ft. |
| Eel River Bridge | CA 211 over Eel River | Open to traffic | Closed-spandrel arch | 1911 | -- | 194.9 ft. | 2408.3 ft. |
| Eureka Slough Bridge | US 101 over Eureka Slough | Open to traffic | Pony truss | 1943 | -- | 102.0 ft. | 883.9 ft. |
| Fort Seward Road Bridge | Fort Seward Road over Eel River | Open to traffic | Through truss | 1958 | -- | 211.0 ft. | 624.0 ft. |
| Honeydew Bridge | Mattole Road over Mattole River | Open to traffic | Through truss | 1920 | -- | 190.0 ft. | 386.2 ft. |
| Klamath River Bridge | CA 96 over Klamath River | Open to traffic | Deck truss | 1949 | -- | 294.0 ft. | 540.4 ft. |
| Lake Benbow Drive Bridge | Lake Benbow Drive over East Branch of South Fork Eel River | Open to traffic | Arch | 1932 | -- | 102.0 ft. | 257.9 ft. |
| Lindley Road Bridge | Lindley Road over Mattole River | Open to traffic | Wire suspension | 1925 | -- | 230.0 ft. | 232.0 ft. |
| Mad River Bridge | US 101 over Mad River | Open to traffic | Through truss | 1929 | -- | 149.9 ft. | 740.2 ft. |
| Maple Creek Road Bridge | Maple Creek Road over North Fork Mad River | Open to traffic | Concrete through arch | 1928 | -- | 144.0 ft. | 429.2 ft. |
| Maple Creek Road Bridge | Maple Creek Road over Boulder Creek | Open to traffic | Arch | 1923 | -- | 60.0 ft. | 92.9 ft. |
| Mattole Road Bridge | Mattole Road over Mattole River | Open to traffic | Deck truss | 1958 | -- | 100.1 ft. | 380.6 ft. |
| Mattole Road Bridge | Mattole Road over Mattole River | Open to traffic | Arch | 1935 | -- | 149.9 ft. | 166.0 ft. |
| Old Mattole Road Bridge | Old Mattole Road over Mcnutt Creek | Open to traffic | Pony truss | 1926 | -- | 84.0 ft. | 84.0 ft. |
| Orleans Bridge | CA 96 over Klamath River | Open to traffic | Wire suspension | 1966 | -- | 428.2 ft. | 770.1 ft. |
| Redwood Drive Bridge | Redwood Drive over Bear Gulch | Open to traffic | Arch | 1921 | -- | -- | 247.1 ft. |
| Van Duzen River Bridge | CA 36 over Van Duzen River | Unknown status | Closed-spandrel arch | 1925 | -- | 144.0 ft. | 233.9 ft. |
| Zanes Road Bridge | Zanes Road over Elk River | Open to traffic | Through truss | 1936 | -- | 51.8 ft. | 125.0 ft. |