Bair Road Bridge
Pony truss bridge over Redwood Creek on Bair Road
Open to traffic
Built 1951; rehabilitated 1967

Bald Hills Road Bridge
Deck truss bridge over Klamath River on Bald Hills Road
Open to traffic
Built 1959; rehabilitated 1965

Bertas Road Bridge
Covered bridge over Elk River on Bertas Road in Pine Hills
Open to traffic
Built 1936; rehabilitated 1972

Bluff Creek Bridge
Steel arch bridge over Bluff Creek on CA 96
Open to traffic
Built 1967

Briceland Road Bridge
Concrete arch bridge over Redwood Creek on Briceland Road
Open to traffic
Built 1935

Brookwood Drive Bridge
Covered bridge over Jacoby Creek on Brookwood Drive in Arcata
Open to traffic
Built 1967

Butler Valley Road Bridge
Concrete arch bridge over Mad River on Butler Valley Road
Open to traffic
Built 1937; rehabilitated 1965

Butler Valley Road Bridge
Concrete arch bridge over Maple Creek on Butler Valley Road
Open to traffic
Built 1929

Chezem Road Bridge
Through truss bridge over Redwood Creek on Chezem Road in Willow Creek
Open to traffic
Built 1916; rehabilitated 1947

Eel River Bridge
Through truss bridge over Eel River & NWP Railroad on CA 283 in Rio Dell
Open to traffic
Built 1941

Eel River Bridge
Through truss bridge over Eel River on US 101 in Rio Dell
Open to traffic
Built 1941; rehabilitated 1989

Eel River Bridge
Concrete arch bridge over Eel River on CA 211
Open to traffic
Built 1911; rehabilitated 1918

Eureka Slough Bridge
Pony truss bridge over Eureka Slough on US 101 in Eureka
Open to traffic
Built 1943; rehabilitated 2001

Fort Seward Road Bridge
Through truss bridge over Eel River on Fort Seward Road
Open to traffic
Built 1958

Honeydew Bridge
Through truss bridge over Mattole River on Mattole Road
Open to traffic
Built 1920

Klamath River Bridge
Deck truss bridge over Klamath River on CA 96
Open to traffic
Built 1949

Lake Benbow Drive Bridge
Concrete arch bridge over East Branch of South Fork Eel River on Lake Benbow Drive
Open to traffic
Built 1932; rehabilitated 1939

Lindley Road Bridge
Suspension bridge over Mattole River on Lindley Road
Open to traffic
Built 1925

Mad River Bridge
Through truss bridge over Mad River on US 101 in McKinleyville
Open to traffic
Built 1929; rehabilitated 1959

Maple Creek Road Bridge
Rainbow arch bridge over North Fork Mad River on Maple Creek Road
Open to traffic
Built 1928

Maple Creek Road Bridge
Concrete arch bridge over Boulder Creek on Maple Creek Road
Open to traffic
Built 1923

Mattole Road Bridge
Deck truss bridge over Mattole River on Mattole Road
Open to traffic
Built 1958

Mattole Road Bridge
Concrete arch bridge over Mattole River on Mattole Road
Open to traffic
Built 1935

Old Mattole Road Bridge
Pony truss bridge over Mcnutt Creek on Old Mattole Road
Open to traffic
Built 1926

Orleans Bridge
Suspension bridge over Klamath River on CA 96
Open to traffic
Built 1966

Redwood Drive Bridge
Concrete arch bridge over Bear Gulch on Redwood Drive
Open to traffic
Built 1921

Van Duzen River Bridge
Concrete arch bridge over Van Duzen River on CA 36
Unknown status
Built 1925

Zanes Road Bridge
Covered bridge over Elk River on Zanes Road in Pine Hills
Open to traffic
Built 1936