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Sonoma County

2nd Street East Bridge [Map · Street View]
Stone arch bridge over Nathanson Creek on 2nd Street East
Open to traffic
Built 1909

4th Street East Bridge [Map · Street View]
Closed spandrel Concrete arch bridge over Nathanson Creek on 4th Street East in Sonoma
Open to traffic
Built 1914

Alderbrook Bridge [Map]
Lost Pratt through truss bridge over Santa Rosa Creek on Alderbrook Drive
Replaced by new bridge
Originally built in Santa Barbara County; Relocated here in 1941; Replaced 1979

Alexander Valley Road Bridge (1920) [Map]
Concrete stringer bridge over Russian River tributary on Private drive, formerly Alexander Valley Road
Open to traffic
Built 1920, obsolete, by road realignment for new bridge, 1949

Alexander Valley Road Bridge (1949) [Map · Street View]
Warren Pony truss bridge over Russian River on Alexander Valley Road
Open to traffic
Built 1949, rehabilitated unknown year

Annapolis Road Bridge [Map · Street View]
Parker Through truss bridge over Gualala River (Clark Xing) on Annapolis Road
Open to traffic
Built 1920; rehabilitated 1971

Arnold Drive Bridge [Map · Street View]
Parker Through truss bridge over Sonoma Creek on Arnold Drive
Open to traffic
Built 1930

Black Point Bridge (1917) [Map]
Lost Baltimore through truss bridge over Petaluma Creek on CA 37
Replaced by a new bridge
Built 1917; Replaced 1958

Bohan Dillon Road Bridge [Map · Street View]
Deck truss bridge over South Fork Gualala River on Bohan Dillon Road
Open to traffic
Built 1950

Bohemian Highway Bridge [Map · Street View]
Pratt Pony truss bridge over Russian River on Bohemian Highway in Monte Rio
Open to traffic
Built 1934

California Northwestern - Petaluma River Bridge [Map]
Lost Through truss bridge over Petaluma River on California Northwestern Railroad
Replaced by a new bridge
Replaced 1903

Chalk Hill Road Bridge [Map · Street View]
Concrete arch bridge over Maacama Creek on Chalk Hill Road
Open to traffic, bridge has significant structural damage
Built 1915

Conde Lane Bridge [Map]
Concrete arch bridge over Windsor Creek on Conde Lane in Windsor
Open to traffic
Built 1995

Crocker Road Bridge [Map · Street View]
Steel Warren Pony truss bridge over Russian River on Crocker Road in Cloverdale
Open to traffic
Built 1938, rehabilitated, unknown year

D Street Bridge [Map · Street View]
Bascule bridge over Petaluma River on D Street in Petaluma
Open to traffic
Built 1933; rehabilitated 1953, rehabilitated 2009.

Davis Street Bridge [Map]
Lost Closed-spandrel arch bridge over Santa Rosa Creek on Davis Street
Replaced by a new bridge

Drake Road Bridge [Map]
Wooden bridge over Side Hill Viaduct on Drake Road in Guerneville
Open to traffic
Built 1930

Dry Creek Bridge [Map · Street View]
Steel stringer bridge over Dry Creek on Dry Creek Road
Open to traffic
Built 1951

Dunbar Road Bridge [Map · Street View]
Stone arch bridge over Calabazas Creek on Dunbar Road
Open to traffic
Built 1915; rehabilitated 1940

Eagle Nest Lane Bridge [Map]
Wooden bridge over Hillside on Eagle Nest Lane in Guerneville
Open to traffic, no historical elements visible
Built 1930

East Napa Street Bridge [Map · Street View]
Stone arch bridge over Nathanson Creek on East Napa Street
Open to traffic
Built 1908, rehabilitated, widened, 1934

Flood Road Bridge [Map]
Bridge over Big Sulphur Creek on Flood Road
Open to authorized vehicles only

Freestone Flat Road Bridge [Map · Street View]
Deck truss bridge over Salmon Creek on Freestone Flat Road in Occidental
Open to traffic
Built 1955

Geysers Road Bridge [Map · Street View]
Pratt Through truss bridge over Big Sulphur Creek on Geysers Road
Open to traffic
Built 1909; rehabilitated 1970

Glen Ellen Bridge [Map]
Lost Pratt through truss bridge over Sonoma Creek on Arnold Drive
Replaced by a new bridge

Great Heron Drive Bridge [Map]
Closed spandrel Concrete arch bridge over Sky Hawk Creek on Great Heron Drive in Santa Rosa
Open to traffic
Built 1995

Gualala Bridge (Pre 1906) [Map]
Lost Parker through truss bridge over Gualala River
No longer exists

Hacienda Bridge [Map · Street View]
Pratt Through truss bridge over Russian River on River Road
Open to traffic
Built 1914; rehabilitated 1947

Haupt Creek Bridge [Map · Street View]
Pinned Pratt through truss bridge over Haupt Creek on Stewart Point Skagg Springs Road
Open to traffic
Built 1880, relocated 1909 to Monte Rio, relocated 1937 to this location

Hauser Bridge (1947) [Map · Street View]
Pre-fab modular steel panel deck truss bridge over South Fork Gualala River on Hauser Br Road
Replaced by a new bridge
Built 1947; rehabilitated 1954, replaced 2017

Hauser Bridge (2017) [Map · Street View]
Steel pony truss Arch bridge over South Fork Gualala River on Hauser Bridge Road
Open to traffic
Built 2017

Healdsburg Avenue Bridge [Map · Street View]
Through truss bridge over Russian River on Healdsburg Avenue in Healdsburg
Under construction
Built 1921

Hooker Creek Bridge [Map · Street View]
Stone arch bridge over Hooker Creek on CA 12
Open to traffic
; rehabilitated 1924

Johnson Gulch Bridge [Map · Street View]
Bailey Truss Pony truss bridge over Johnson Gulch on Monte Vista Terrace
Open to traffic
Built 2001

Juilliard Park Bridge [Map]
Closed-spandrel arch bridge on Pedestrian Walkway
Open to pedestrians only

Lambert Bridge Road Bridge [Map · Street View]
Through truss bridge over Dry Creek on Lambert Bridge Road
Open to traffic
Built 1915

Laughlin Road Bridge [Map · Street View]
Closed spandrel Concrete arch bridge over Mark West Creek on Laughlin Road
Open to traffic
Built 1916

Maacama Creek Bridge [Map · Street View]
Concrete arched beam bridge over Maacama Creek on State Route 128
Replaced by a new bridge
Built 1931, rehabilitated, unknown year

Melita Road Bridge [Map · Street View]
Closed spandrel Concrete arch bridge over Santa Rosa Creek on Melita Road in Santa Rosa
Open to traffic
Built 1915

Memory Lane Bridge [Map]
Wooden bridge over Hillside on Memory Lane in Guerneville
Open to traffic
Built 1930

Monterey Drive Bridge [Map]
Closed-spandrel arch bridge over Matanzas Creek on Monterey Drive
Open to traffic

Moscow Road Viaduct [Map · Street View]
Concrete stringer bridge across hillside on Moscow Road
Open to traffic
Built 1956

Mountain Hawk Way Bridge [Map · Street View]
Closed spandrel Concrete arch bridge over Sky Hawk Creek on Mountain Hawk Way in Santa Rosa
Open to traffic
Built 1995

Nathanson Creek Bridge [Map · Street View]
Wooden bridge over Nathanson Creek on Chase Street in Sonoma
Open to traffic
Built 1910; rehabilitated 1990

Neeley Road Bridge [Map · Street View]
Wooden bridge over SIDEHILL VIADUCT #1 on Neeley Road
Open to traffic
Built 1930

Neeley Road Bridge [Map · Street View]
Wooden bridge over SIDEHILL VIADUCT #2 on Neeley Road
Open to traffic
Built 1930

NWP - Black Point Bridge (1891) [Map]
Parker through truss bridge over Petaluma River on Northwestern Pacific RR
No longer exists
Built in 1891; Replaced 1911

NWP - Black Point Bridge (1911) [Map · Street View]
Warren through truss bridge over Petaluma River on Northwestern Pacific Railroad
Open to low emission locomotives and cars carrying animal feed and lumber up north four to five times a week.
Built 1911

NWP - Duncans Mills Girder Bridge [Map]
Lost Deck plate girder bridge over Russian River on Northwestern Pacific Railroad
Removed but not replaced

NWP - Duncans Mills Truss Bridge [Map]
Lost Camelback through truss bridge over Russian River on Northwestern Pacific Railroad
Replaced by a new bridge

NWP - Hacienda Howe Truss [Map]
Lost Bridge over Russian River on Northwestern Pacific Railroad
Replaced by a new bridge
Built 1876; Replaced 1890

NWP - Hacienda Metal Pratt Truss [Map]
Lost Pratt through truss bridge over Russian River on Northwestern Pacific Railroad
Replaced by a new bridge
Built 1914

NWP - Hacienda Wooden Pratt Truss [Map]
Lost Pratt through truss bridge over Russian River on Northwestern Pacific Railroad
Destroyed by fire
Built 1890; Burned 1914

NWP - Haystack's Landing Bridge (1903) [Map]
Warren through truss bridge over Pataluma River on Railroad (SMART)
Replaced by a new bridge
Built 1903; Replaced 2015; last train operated over Sept. 21, 2015

NWP - Healdsburg Bridge [Map · Street View]
Subdivided Warren through truss bridge over Russian River on Northwestern Pacific Railroad
Closed
Built 1921 to replace earlier timber bridge

NWP - Keys Creek Tunnel [Map]
Abandoned tunnel under hillside on North Western Pacific
Derelict/abandoned

NWP - Monte Rio Bridge [Map]
Lost Pratt through truss bridge over Russian River on Northwestern Pacific Railroad
Removed
Relocated here 1909. Line abandoned 1935. Spans relocated 1937.

NWP - Old Redwood Highway Overpass [Map · Street View]
Bridge over Old Redwood Highway on NWP RR
Open to traffic

NWP - Sonoma Tunnel [Map]
Abandoned tunnel on Northwestern Pacific Railroad
Sealed 2011 to smother a fire.
Built 1898; Sealed to smother a fire in 2011

NWP - Wingo Lift Bridge [Map]
Pony/through plate girder bridge over Slough feeding San Pablo Bay on Northwestern Pacific Railroad (NWP)
Open to traffic
Built 1920 by the Toledo Bridge & Crane Co

O'Donnell Lane Bridge [Map · Street View]
Stone arch bridge over Calabazas Creek on O'Donnell Lane in Glen Ellen
Open to traffic
Built 1900, reconditioned unknown later date

Odd Fellows Park Road [Map]
Steel stringer bridge over Russian River on Odd Fellows Park Road
Open to traffic
Built 1977; rehabilitated 2008

Old Cazadero Road Bridge [Map · Street View]
Bailey Bridge truss bridge over Austin Creek on Old Cazadero Road
Open to traffic
Built 1940

Old Duncan Grade Road Bridge [Map · Street View]
Pratt through truss bridge over Austin Creek on Old Duncans Grd Road
Intact but closed to all traffic
Built 1924

Pena Creek Bridge [Map]
Concrete tee beam bridge over Pena Creek on West Dry Creek Road
Open to traffic
Built 1924

Porter Creek Road Bridge [Map]
Concrete deck girder bridge over Porter Creek on Porter Creek Road/Calistoga Road
Replaced by a new bridge

Pt Reyes Petaluma Road Bridge [Map · Street View]
Deck arch bridge over San Antonio Creek on abandoned alignment of Pt Reyes Petaluma Road
Closed to all traffic
Built 1919

Redwood Creek Bridge [Map · Street View]
Concrete rigid frame bridge over Redwood Creek on State Hwy 128
Replaced by a new bridge
Built 1919

Rockpile Road Bridge [Map · Street View]
Warren Deck truss bridge over Warm Springs Creek on Rockpile Road
Open to traffic
Built 1978

Russian River Bridge [Map · Street View]
Pony truss bridge over Russian River on CA 128
Replaced by new bridge
Built 1932; rehabilitated 1972, flood damage 2006, replaced, 2006

Russian River Bridge [Map · Street View]
Pratt Through truss bridge over Russian River on CA 116 in Guerneville
Pedestrian only, replaced by new bridge 1998
Built 1922; replaced 1998

Santa Rosa Avenue (1907) [Map]
Lost Pratt through truss over Santa Rosa Creek on Santa Rosa Avenue
Replaced by a new bridge
Built 1907; Replaced 1928

Santa Rosa Avenue (1928) [Map · Street View]
Concrete tee beam bridge over Santa Rosa Creek on Santa Rosa Avenue
Open to traffic
Built 1928

Santa Rosa Avenue Bowstring Truss [Map]
Lost Bowstring through truss bridge over Santa Rosa Creek on Santa Rosa Avenue
Replaced by a new bridge
Built 1876; Replaced 1907

Sears Point Toll Bridge (1926) [Map]
Bridge over Tolay Creek on CA 37/Sears Point Rd
No longer exists
Built in 1926; replaced in 1928

Sears Point Toll Bridge (1928) [Map]
Lost Bridge over Tolay Creek on CA 37/Sears Point Road
No longer exists
Built 1928

SF&NV - Steamboat Slough Swing Bridge [Map]
Lost Through truss bridge over Steamboat Slough on San Francisco and Napa Railroad/Southern Pacific Railroad
Destroyed by fire
Built 1905 by the San Francisco and Napa Valley RR (later Southern Pacific), abandoned 1933, destroyed by fire in mid 1950s

SMART - Haystack's Landing Bridge (2015) [Map · Street View]
Warren through truss bridge over Petaluma River on Sonoma-Marin Area Rail Transit
Open to traffic
Built 2015 using relocated 1987 spans from Galveston, Texas.

Sonoma Raceway "The Chute" [Map · Street View]
Corrugated multi-plate arch bridge over Infield on Sonoma Raceway "The Chute"
Open to authorized vehicles only
Built 1998

South Fork Gualala River Bridge [Map · Street View]
Lost Pratt deck truss bridge over South Fork Gualala River on Stewart's Point Skagg Springs Road
Replaced by new bridge
Current bridge installed 1984, likely multiple previous bridges at this location

Stewart Point Rd Hillside bridge [Map · Street View]
Timber stringer bridge over Hillside on Stewart Point Road
Replaced, new structure is open to traffic
Built 1970, replaced 2010

Stewart Point Road Bridge [Map · Street View]
Abandoned timber stringer bridge over Unamed tributary Gualala River on Old Stewart Point Road
Abandoned

Sumer Home Park Road Bridge [Map · Street View]
Wooden bridge over SIDEHILL VIADUCT #1 on Sumer Home Park Road
Open to traffic
Built 1930

Sumer Home Park Road Bridge [Map · Street View]
Wooden bridge over SIDEHILL VIADUCT #3 on Sumer Home Park Road
Open to traffic
Built 1930

Summer Crossing Bridge [Map]
Steel stringer bridge over Russian River on Vacation Beach Road
Open to traffic
Built 1977, seasonal, removed in winter.

Sweetwater Spring Road Bridge [Map · Street View]
Bailey type truss Pony truss bridge over Porter Creek on Swtwater Spring Road
Open to traffic
Built 2005

Tower Road Bridge [Map · Street View]
Bailey Truss Pony truss bridge over Roadway Washout on Tower Road
Open to traffic
Built 2006

Washington Street Bridge [Map]
Lost Deck girder bridge over Petaluma River on Washington Street
This bascule double leaf bridge was relocated to South America
Built 1914

Watmaugh Road Bridge [Map · Street View]
Warren Pony truss bridge over Sonoma Creek on Watmaugh Road
Open to traffic
Built 1929

Westside Road Bridge [Map · Street View]
Pony truss bridge over Dry Creek on Westside Road in Healdsburg
Open to traffic
Built 1934, rehabilitated unknown year

Westside Road Bridge [Map · Street View]
Concrete bridge over Porter creek
Open to Traffic

Wohler Road Bridge [Map · Street View]
Through truss bridge over Russian River on Wohler Road
Open to traffic
Built 1921

YMCA Camp Liahona Redwoods Footbridge [Map · Street View]
Wire suspension bridge over Wheatfield Fork Gualala River on Pedestrian trail
Open to pedestrians only