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Every bridge in Sonoma County, California

611 inventoried bridges, busiest first (page 2 of 2)

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Sonoma County, California, has 611 bridges in the 2025 National Bridge Inventory: 138 rated good, 441 fair, and 32 poor (as of August 20, 2026).
This index lists every one of them, busiest first, 500 per page; each links to its own condition record.

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Bridge	Built	Vehicles/day	Condition
Odd Fellows Park R over Russian Riv Summer Xing	1977	275	Fair
Montgomery Rd over Jonive Creek	1963	270	Fair
Geysers Rd over Frasier Creek	1941	250	Fair
Harney Drive over Sonoma Creek	1935	250	Fair
Martinelli Rd over Green Valley Creek	1972	250	Fair
Walker Rd over Gossage Creek	1967	250	Fair
Monte Vista Terrac over Hillside	2008	211	Good
Mill Creek Rd over Mill Creek	1960	210	Fair
Mill Creek Rd over Mill Creek	1961	210	Fair
Mill Creek Rd over Mill Creek	1961	210	Poor
Mill Creek Rd over Mill Creek	1966	210	Fair
Austin CR Rd over Austin Creek	1959	200	Fair
Austin Creek Rd over No Name Creek	1964	200	Fair
Austin Creek Road over Hillside	2015	200	Fair
Fort Ross Rd. over Hillside	1999	200	Fair
Fort Ross Road over Hillside	2014	200	Fair
Freezeout Road over Freezeout Creek	1971	200	Fair
King Ridge Rd over Austin Creek	1958	200	Good
King Ridge Rd over Bearpen Creek	1973	200	Fair
King Ridge Rd over Big Austin Creek	1965	200	Fair
King Ridge Rd over Ward Creek	1973	200	Fair
Kinley Dr over West Slough	1959	200	Fair
Market St over Dutch Bill Creek	1958	200	Good
Middle Terrace over Hillside	1980	200	Fair
Mill Creek Rd over Mill Creek	1961	200	Good
Monte Vista Ter over Hillside	1968	200	Fair
Monte Vista Ter over Hillside	1960	200	Fair
Monte Vista Terr over Hillside	2001	200	Fair
Monte Vista Terr over Johnson Gulch	2001	200	Fair
Seavey Rd over No Name Creek	1960	200	Poor
South Ely Road over South Ely Creek	1961	200	Good
Starrett Hill Dr over Hillside	1988	200	Fair
Starrett Hill Dr over Hillside	1986	200	Fair
Starrett Hill Dr over Hillside	1973	200	Fair
Starrett Hill Dr over Hillside	2015	200	Good
Stwrt Pt-skgg Sprg over Haupt Creek	1937	200	Good
Stwrt Pt-skgg Sprg over Hillside	2015	200	Fair
Stwrt Pt-skgg Sprg over Hillside	2015	200	Fair
Temelec Circle over Rogers Creek	1984	200	Fair
Valdes Court over Piner Creek	1976	200	Good
Via Columbard over Rogers Creek	1987	200	Fair
West Dry Creek Rd over Crane Creek	1928	200	Good
West Dry Creek Rd over Grape Creek	1928	200	Good
Whistler Ave over N Br Laguna De Santa Rsa	1963	200	Good
Willow Creek Rd over Willow Creek	1978	170	Good
Willow Creek Road over Willow Creek	1966	170	Good
Willow Creek Road over Willow Creek	2011	170	Good
Fort Ross Road over Turner Canyon Creek	2024	150	Good
Fort Ross Road over Turner Canyon Creek	2024	150	Good
Geysers Rd over Hillside	1999	150	Fair
Geysers Road over Hillside	1998	150	Fair
Geysers Road over Hillside	2006	150	Fair
Geysers Road over Hillside	2006	150	Fair
Jamison Rd over Matanzas Creek	1969	150	Fair
Lowell Ave over Gossage Creek	1972	150	Good
Manor Lane over Adobe Creek	1960	150	Good
Old River Rd over Green Valley Creek	1949	150	Good
Summerhome Park Rd over Hillside	1992	150	Fair
Tyrone Road over Tyrone Gulch Creek	2004	150	Fair
Walker Avenue over Colgan Ck Fld Cntrl Chan	1997	150	Good
Geysers Rd over Big Sulphur Creek	1909	140	Fair
Sweetwater Sprg Rd over Branch Redwood Creek	1970	140	Fair
Sweetwtr Sprngs Rd over Porter Creek	1968	140	Fair
Sweetwtr Sprngs Rd over Porter Creek	1968	140	Poor
Sweetwtr Sprngs Rd over Porter Creek	1968	140	Fair
Swtwater Spring Rd over Porter Creek	1974	140	Fair
Swtwater Spring Rd over Porter Creek	2005	140	Good
Wallace Creek Rd over Wallace Creek	1974	130	Fair
Freestone Flat Rd over Salmon Creek	1955	121	Fair
Willow Creek Road over Willow Creek	1975	120	Fair
River Road over Russian Riv Summer Xing	1992	105	Fair
Summerhome Park Rd over Hillside	1930	101	Fair
Summerhome Park Rd over Hillside	1960	101	Fair
Eagle Nest Lane over Hillside	1930	100	Poor
Fern Way over Hubert Creek	1958	100	Fair
Gericke Rd over Americano Creek	1972	100	Poor
Gilmore Avenue over Gossage Creek	1972	100	Fair
Hauser Br Rd over South Fork Gualala River	2017	100	Good
Highland Terrace over Hillside	1983	100	Fair
Kenilworth Ave over Sonoma Creek	1971	100	Fair
Magnolia Dr over West Slough	1979	100	Good
Monte Rio Ave over Hillside	1983	100	Fair
Morelli Lane over North Fork Lancel Creek	1970	100	Fair
Old Monte Rio Rd over Hillside	1980	100	Fair
Old Monte Rio Road over Hillside	1960	100	Fair
Old Monte Rio Road over Hillside	1960	100	Fair
Old Monte Rio Road over Hillside	1996	100	Fair
Old Monte Rio Road over Hillside	2012	100	Fair
Pacific Avenue over Hillside	2015	100	Fair
Pacific Avenue over Hillside	2015	100	Fair
Petaluma Blvd over San Antonio Creek	1929	100	Fair
Pine Flat Rd over Sausal Creek	1974	100	Poor
Railroad Avenue over No Name Creek	1970	100	Fair
Salmon Creek Rd over Tannery Creek	1920	100	Fair
San Luis Road over Schell Creek	1970	100	Fair
Santa Rosa Ave over Hillside	1990	100	Fair
Scouts Camp Rd over Salmon Creek	1960	100	Fair
W Soda Rock Lane over Hillside	1968	100	Fair
Watson Rd over Fife Creek	1970	100	Good
Mays Canyon Rd over Pocket Canyon Creek	1968	95	Good
Salmon Creek Rd over Coleman Valley Creek	1973	80	Fair
Leslie Rd over Porter Creek	1972	63	Fair
Geysers Road over Camacho Creek	1974	60	Poor
Old Cazadero Rd over Austin Creek	1940	60	Fair
Bohan Dillon Rd over South Fork Gualala River	1950	50	Fair
Bohan Dillon Rd over South Fork Gualala River	1971	50	Fair
Felta Rd over Felta Creek	1975	50	Fair
Niestrath Rd over South Fork Gualala River	1971	50	Fair
Redwood Ave over Hillside	1980	50	Fair
Summerhome Park Rd over Hillside	1930	50	Fair
Old Duncans Grd Rd over Austin Creek	1924	30	Poor

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Source: FHWA National Bridge Inventory, 2025.

Sonoma County bridge conditions · California bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.