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
Alexander - Valley - Rd, old - bridge   [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   [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
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
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
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
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
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 (old)   [Map]
Lost Pratt through truss bridge over Gualala River
No longer exists
Haupt - Creek - Bridge   [Map · Street View]
Pinned Pratt through truss bridge over Haupt Creek on Stewart Point Skagg Springs Road
Open to traffic
Built 1909, relocated 1937 to this location
Hauser - Bridge   [Map · Street View]
Bailey Deck truss bridge over South Fork Gualala River on Hauser Br Road
Open to traffic
Built 1947; rehabilitated 1954
Haystack - Landing - Bridge   [Map]
Through truss bridge over Petaluma River on former California Northwestern RR
Open to traffic
Built 1904; to be removed 2015
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
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
Moscow - Road - Viaduct   [Map · Street View]
Concrete stringer bridge over 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 - Haystack's - Landing - Bridge   [Map · Street View]
Warren through truss bridge over Pataluma River on Railroad (SMART)
Open to traffic
Built 1903; Replaced 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 - Old - Redwood - Highway - Overpass   [Map · Street View]
Bridge over Old Redwood Highway on NWP RR
Open to traffic
NWP - Petaluma - River - Bridge   [Map · Street View]
Warren through truss bridge over Petaluma River on Northwestern and Pacific Railroad
Open to low emission locomotives and cars carrying animal feed and lumber up north four to five times a week.
NWP - Sonama - 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
Petaluma - River - Bridge   [Map · Street View]
Bascule bridge over Petaluma River on D Street in Petaluma
Open to traffic
Built 1933; rehabilitated 1953, rehabilitated 2009.
Petaluma - River - Bridge   [Map]
Lost Deck girder bridge over Petaluma River on Washington Street
This bascule double leaf bridge was relocated to South America
Built 1914
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 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
River - Road - Bridge   [Map · Street View]
Pratt Through truss bridge over Russian River on River Road
Open to traffic
Built 1914; rehabilitated 1947
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
Sears - Point - Toll - Bridge   [Map · Street View]
Lost Bridge over Tolay Creek on State Route 37 Sears Point Road
No longer exists
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 (New)   [Map]
Warren through truss bridge over Petaluma River on Sonoma-Marin Area Rail Transit
Under construction
Built 2015
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
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