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Every bridge in Sonoma County, California

611 inventoried bridges, busiest first (page 1 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.

Page 1 · 2

Bridge	Built	Vehicles/day	Condition
US Highway 101 over College Avenue	2009	136,500	Fair
U.S. Route 101 over Future Rainier Avenue	2022	103,000	Fair
U.S. Highway 101 over Santa Rosa Creek	2009	96,000	Fair
U.S. Highway 101 over Sixth Street	2009	96,000	Fair
US Highway 101 over 3RD St 4TH St & 5TH St	1968	96,000	Fair
US Highway 101 over Ninth Street	1968	96,000	Fair
US Highway 101 over Steele Lane	2009	96,000	Fair
US Highway 101 NB over Willow Brook	1956	94,000	Fair
US Highway 101 over Corona Ditch	1954	94,000	Good
U.S. Highway 101 over Hinebaugh Creek	1968	92,000	Fair
U.S. Highway 101 over Laguna De Santa Rosa	1956	92,000	Good
US Highway 101 over Colgan Creek	1957	92,000	Fair
US Highway 101 over Commerce Blvd & Nwprr	2012	92,000	Fair
US Highway 101 over Copeland Creek	1956	92,000	Fair
US Highway 101 over N Br Laguna De Santa Rsa	1957	92,000	Fair
US Highway 101 over SR 116 Gravenstein Hwy	2011	92,000	Fair
US Highway 101 over Wilfred Av-golfcourse Dr	2012	92,000	Fair
US Highway 101 over West Railroad Avenue	2011	90,000	Fair
U.S. Highway 101 over Sierra Ave	1956	86,000	Fair
US Highway 101 over Petaluma River	2016	76,000	Good
US Highway 101 NB over Pool Creek	1962	62,000	Fair
US Highway 101 over Mark West Creek	1962	62,000	Fair
US Highway 101 over Pruitt Creek	1962	62,000	Fair
U.S. Route 101 NB over Smart Railroad Tracks	2022	51,500	Good
U.S. Route 101 SB over Smart Railroad Tracks	2022	51,500	Fair
E12-n&s101 Connctr over Olive Street	1964	47,400	Fair
U.S. Highway 101 over West Slough	1960	45,500	Fair
U.S. Highway 101 over Westside Rd	1960	45,500	Poor
US Highway 101 over Dry Creek Road	1960	45,500	Poor
US Highway 101 over Windsor Creek	1962	45,500	Fair
US Highway 101 NB over SR 116 RR Tracks Ditch	2015	43,000	Fair
US Highway 101 SB over SR 116 & Nwp RR & Ditch	2007	43,000	Good
US Highway 101 over Lynch Creek	1955	43,000	Good
US Highway 101 over Washington Street Creek	1955	43,000	Fair
SR 12 over Santa Rosa Creek	1974	41,250	Fair
State Route 12 over Brush Creek	1962	41,250	Fair
State Route 12 over Matanzas Creek	1968	40,750	Fair
State Route 12 over Santa Rosa Creek	1956	40,750	Good
E&w12-n101 Connctr over Santa Rosa Creek	2009	40,000	Fair
S101-e&w12 Connctr over Santa Rosa Creek	2009	40,000	Fair
Hoen Av-w12 on Rmp over St Rte 12 - Farmers Lane	2003	39,000	Fair
EB State Route 12 over Santa Rosa Ave	1964	36,500	Fair
SR 12 EB over S101-e12 Connector Ramp	1964	36,500	Fair
SR 12 EB over US 101 & Connector Ramps	1964	36,500	Fair
SR 12 WB over US 101 & Connector Ramps	1964	36,500	Fair
State Route 12 EB over Nwp RR	1964	36,500	Fair
State Route 12 WB over Nwp RR	1964	36,500	Fair
State Route 12 over Dutton Ave	1964	36,500	Fair
State Route 12 over Dutton Ave	1964	36,500	Fair
State Route 12 over Olive Street	1964	36,500	Fair
State Route 12 over Olive Street	1964	36,500	Fair
WB State Route 12 over Santa Rosa Ave	1964	36,500	Fair
State Route 116 over Adobe Creek	1954	34,000	Fair
State Route 37 over Tolay Creek	1931	32,000	Good
SR 12 WB over S101-e12 Connector Ramp	1964	31,500	Fair
Santa Rosa Ave over Santa Rosa Creek	1928	31,300	Fair
SR 12 EB over South E Street	1990	30,000	Fair
SR 12 WB over Brookwood Ave	1990	30,000	Fair
SR 12 WB over South E Street	1990	30,000	Fair
State Route 12 EB over Brookwood Ave	1990	30,000	Fair
State Route 12 over Brigham Ave	1969	30,000	Fair
State Route 12 over Brigham Ave	1969	30,000	Fair
Santa Rosa Avenue over Colgan Creek	1963	29,487	Fair
State Route 12 over Sonoma Creek	2023	26,400	Good
W College Ave over College Creek	1935	26,000	Fair
Stony Point Rd over State Route 12	1993	24,000	Fair
SR 12 over Purple Draw	1995	23,050	Good
State Route 12 over Laguna De Santa Rosa	2017	23,050	Fair
Occidental Rd over Laguna De Santa Rosa	1990	22,900	Fair
US Highway 101 NB over Arata Lane	1962	22,750	Fair
US Highway 101 NB over Chiquita Road	1960	22,750	Fair
US Highway 101 NB over Healdsburg Av-s101 On-rp	1960	22,750	Fair
US Highway 101 NB over Healdsburg Avenue	1962	22,750	Fair
US Highway 101 NB over Nwp Rr/ncrra	1962	22,750	Fair
US Highway 101 NB over Russian River	1999	22,750	Fair
US Highway 101 NB over Windsor Lane	1962	22,750	Fair
US Highway 101 SB over Healdsburg Avenue	1962	22,750	Fair
US Highway 101 SB over Nwp Rr/ncrra	1962	22,750	Fair
US Highway 101 SB over Russian River	1999	22,750	Fair
US Highway 101 SB over Arata Lane	1962	22,500	Fair
US Highway 101 SB over Chiquita Road	1960	22,500	Poor
US Highway 101 SB over Healdsburg Av-s101 On-rp	1960	22,500	Fair
US Highway 101 SB over Windsor Lane	1962	22,500	Fair
Fulton Street over Piner Creek	1970	22,350	Good
Hoen Avenue over Matanzas Creek	1972	22,000	Good
N Dutton Ave over Santa Rosa Creek	1973	22,000	Good
Stony Point Rd over Santa Rosa Creek	1971	22,000	Fair
Washington St over Petaluma River	1970	21,900	Poor
S Cloverdale Blvd over US Highway 101	1991	21,700	Fair
State Route 12 over Tylers Drainage	1950	21,000	Good
E Washington St over US Highway 101	1975	20,000	Fair
Mission Blvd over Santa Rosa Creek	1956	20,000	Fair
Old Redwood Hwy over East Windsor Creek	1991	20,000	Good
Rohnert Park Expwy over U.S. Highway 101 & Ramps	1973	20,000	Fair
Shiloh Road over Pruitt Creek	2012	20,000	Fair
U.S. Highway 101 over Oat Valley Creek	1984	20,000	Fair
US Hwy 101 On-ramp over Washington Creek	2013	20,000	Good
Old Redwood Hwy over Willow Brook Creek	1999	19,980	Poor
Fulton Road over Santa Rosa Creek	1960	19,000	Good
State Route 121 over Arroyo Seco	1923	19,000	Fair
State Route 121 over Branch Arroyo Seco	1922	19,000	Fair
State Route 121 over Sonoma Creek	1971	19,000	Fair
SR 12 over Agua Caliente Creek	1924	18,600	Fair
State Route 116 over Laguna De Santa Rosa Trb	2020	18,000	Good
Dry Creek Rd over Foss Creek	1962	17,950	Good
Chanate Road over Paulin Creek	1965	17,942	Fair
Calistoga Road over Austin Creek	1960	17,770	Good
Arnold Dr over Carriger Creek	1974	17,700	Good
Old Redwood Hwy over Mark West Creek	1956	16,600	Fair
State Route 116 over Blucher Creek	1938	16,550	Good
Arnold Dr over Felder Creek	1967	16,500	Fair
D Street over Petaluma River	1933	16,330	Fair
State Route 121 over Tolay Creek	1996	16,150	Good
State Route 121 over Yellow Creek	1922	16,150	Good
Industrial Dr over U.S. Highway 101	1962	16,000	Fair
Petaluma Hill Rd over Copeland Creek	1969	16,000	Fair
State Route 116 over Gossage Creek	1936	16,000	Good
SR 12 over Calabazas Creek	1989	15,300	Fair
Fulton Rd over Mark West Creek	1971	14,650	Fair
W Third St over Santa Rosa Creek	1935	14,600	Fair
US Highway 101 NB over Geyserville Ave	1975	14,250	Fair
US Highway 101 NB over Geyserville Avenue	1975	14,250	Fair
US Highway 101 NB over Lytton Springs Road	1974	14,250	Fair
US Highway 101 NB over Souverain Rd	1974	14,250	Fair
US Highway 101 NB over St Rte 128 (canyon Rd)	1975	14,250	Fair
State Route 12 over Stuart Creek	1924	14,200	Fair
Montecito Blvd over Brush Creek	1962	14,000	Good
Arnold Dr over Sonoma Creek	1924	13,900	Poor
Arnold Drive over Sonoma Creek	1930	13,900	Poor
State Route 12 over Hooker Creek	2023	13,900	Good
Old Redwood Hwy over Pool Creek	1925	13,800	Fair
Stony Point Rd over Colgan CR Fld Cntrl Chan	1962	13,600	Good
US Highway 101 SB over Geyserville Ave	1975	13,500	Fair
US Highway 101 SB over Geyserville Avenue	1975	13,500	Fair
US Highway 101 SB over Lytton Springs Road	1974	13,500	Fair
US Highway 101 SB over Souverain Rd	1974	13,500	Fair
US Highway 101 SB over St Rte 128 (canyon Rd)	1975	13,500	Good
River Road over Hillside	2003	13,450	Fair
Cleveland Ave over Pauline Creek	1963	13,000	Fair
Guerneville Rd over Abramson Creek	1921	12,700	Good
Guerneville Rd over Forest View Creek	1921	12,700	Good
Guerneville Rd over Peterson Creek	1921	12,700	Good
River Rd over Green Valley Creek	1970	12,700	Good
Marlow Rd over Pauline Creek	1960	12,500	Fair
State Route 116 over Green Valley Creek	1930	12,400	Poor
State Route 116 over Jones Creek	1921	12,400	Fair
South E St over Matanzas Creek	1935	12,000	Fair
State Route 116 over Ellis Creek	1972	12,000	Good
E Street over Santa Rosa Creek	1920	11,900	Fair
River Rd over Mark West CR Trenton Rd	1960	11,700	Fair
Adobe Rd over Lynch Creek	1950	11,600	Fair
Brookwood Road over Santa Rosa Creek	1979	11,000	Good
Mission Blvd over Austin Creek	1960	11,000	Fair
Sb101-golf Crs Off over Commerce Blvd & Nwprr	2012	11,000	Fair
Stony Point Rd over Willow Brook Creek	1961	10,855	Good
US Highway 101 SB over Asti Store Rd	1964	10,850	Fair
US Highway 101 SB over Theresa Drive	1964	10,850	Fair
US Highway 101 SB over Zanzi Ln	1964	10,850	Fair
US Highway 101 NB over Asti Store Rd	1964	10,800	Fair
US Highway 101 NB over Theresa Drive	1964	10,800	Fair
US Highway 101 NB over Zanzi Ln	1964	10,800	Fair
Petaluma Hill Rd over Lichau Creek	1920	10,600	Good
Stony Point Rd over Gossage Creek	1994	10,600	Fair
Bicentennial Way over U.S. Highway 101	1979	10,500	Fair
Leveroni Rd over Sonoma Creek	1969	10,400	Good
Bodega Highway over Atascadero Creek	1923	10,304	Fair
River Rd over Hillside	1971	10,300	Fair
River Rd over Hillside	1971	10,300	Good
River Road over Hillside	1979	10,300	Fair
Stony Point Rd over Laguna De Santa Rosa	1960	10,300	Fair
River Road over Hillside	2007	10,250	Fair
U.S. Highway 101 over SR 128 (mccray Road)	1989	10,200	Fair
Caletti Ave over Pruitt Creek	1987	10,000	Good
Guerneville Road over Piner Creek	1921	10,000	Good
Offramp NB Rte 101 over Mark West Creek	2014	10,000	Fair
River Rd over Hobson Creek	1950	10,000	Fair
River Rd over Russian River	1914	10,000	Poor
Yulupa Ave over Matanzas Creek	1961	10,000	Fair
Old Redwood Hwy over Laguna De Santa Rosa	1956	9,800	Poor
Verano Ave over Sonoma Creek	1949	9,700	Good
Brookwood Ave over Matanzas CR (brookwood)	1951	9,400	Fair
Old Redwood Hwy over Pruitt Creek	1913	9,000	Fair
River Road over U.S. Highway 101	1962	9,000	Fair
Riverside Drive over Sonoma Creek	2006	9,000	Fair
State Farm Drive over Hinebaugh Creek	1979	9,000	Fair
US Highway 101 SB over First St & Cloverdale CR	1994	9,000	Good
Montgomery Dr over Santa Rosa Creek	1906	8,600	Good
State Route 116 over Drake Road	1999	8,450	Fair
State Route 116 over Fife Creek	1991	8,450	Fair
State Route 116 over Hulbert Creek	1992	8,450	Fair
State Route 116 over Russian River	1941	8,450	Fair
State Route 116 over Russian River	1940	8,450	Fair
State Route 116 over Russian River	1998	8,450	Fair
Guerneville Rd over Laguna De Santa Rosa	1957	8,400	Fair
Healdsburg Ave over Russian River	1921	8,204	Fair
Healdsburg Ave over Russian River Overflow	1987	8,204	Fair
Rohnert Park Expwy over Bellevue Wilfred Creek	1990	8,200	Fair
Rohnert Park Expwy over Hinebaugh Creek	1990	8,200	Fair
West Olive St over Santa Rosa Creek	1962	8,200	Fair
Hembree Lane over Pool Creek	1962	8,100	Fair
River Rd over Mark West Creek	1958	8,000	Poor
E12-n101 Connector over SR 12 & US 101	1964	7,800	Fair
Country Club Dr over Copeland Creek	1973	7,700	Fair
Payran St over Petaluma River	1997	7,575	Fair
Baker Avenue over U.S. Highway 101	1957	7,500	Fair
Porter Creek Road over Porter Creek	2014	7,300	Good
Bodega Highway over Jonive Creek 1	1922	7,000	Good
Coffey Ln over Pauline Creek	1960	7,000	Good
Country Club Drive over Hinebaugh Creek	1973	7,000	Fair
Country Club Drive over Hinebaugh Creek	1973	7,000	Fair
US Highway 101 NB over Citrus Fair Drive	1994	6,800	Fair
US Highway 101 NB over First St & Cloverdale CR	1994	6,800	Poor
US Highway 101 SB over Citrus Fair Drive	1994	6,800	Fair
Bodega Highway over Jonive Creek	1922	6,700	Good
Corona Rd over U.S. Highway 101	1955	6,500	Fair
Nb101-roberts Lake over N Br Laguna De Santa Rsa	2002	6,500	Fair
Bodega Hwy over Nolan Creek	1955	6,400	Fair
Bodega Hwy over Salmon Creek	1968	6,400	Good
Arnold Dr over Sonoma CR (glen Ellen)	1939	6,300	Good
S101-w12 Connector over Olive Street	1964	6,300	Fair
State Route 1 over Cheney Gulch	1956	6,300	Fair
S Ely Rd over Adobe Creek	1984	6,145	Good
Westside Rd over Norton Slough	1960	6,100	Fair
Westside Road over Dry Creek	1934	6,100	Fair
Bethards Drive over Matanzas Creek	1966	6,000	Fair
Calistoga Rd over Weeks Creek	1953	6,000	Fair
Fulton Road over U.S. Highway 101	1962	6,000	Fair
Hahman Dr over Spring Creek	1960	6,000	Good
Leveroni Rd over Carriger Creek	1972	6,000	Fair
Leveroni Rd over Felder Creek	1972	6,000	Good
Old Redwood Hwy N over US Highway 101	2014	6,000	Fair
Steele Lane over Pauline Creek	1960	6,000	Fair
Old Redwood Hwy over Sotoyome Creek	1913	5,900	Fair
Piner Road over Piner Creek	1960	5,900	Fair
Windsor Road over Pool Creek	1967	5,900	Poor
Bennett Valley Rd over Matanzas Creek	1929	5,800	Good
Calistoga Rd over Humbug Creek	1935	5,800	Fair
Calistoga Rd over Mark West Creek	1967	5,800	Fair
Porter Creek Road over Porter Creek	1960	5,800	Fair
Cloverdale Blvd over Cloverdale Creek	2000	5,700	Fair
Lakeville Street over Petaluma River	1998	5,520	Fair
Conde Lane over Windsor Creek	1995	5,400	Fair
State Route 1 over Scotty Creek	2023	5,200	Good
State Route 116 over Austin Creek	1962	5,175	Fair
State Route 116 over Russian River	1976	5,175	Good
Occidental Rd over Atascadero Creek	1971	5,100	Fair
A Street over Santa Rosa Creek	1987	5,000	Fair
Airport Blvd over US Highway 101	2014	5,000	Fair
Hearn Avenue over U.S. Highway 101 & Ramps	1957	5,000	Fair
Madrone Rd over Sonoma Creek	1956	5,000	Fair
Santa Rosa Ave over N Bra Lag De Santa Rosa	1918	5,000	Fair
Windsor Road over Windsor Creek	2005	5,000	Good
Corona Rd over Petaluma River	1977	4,800	Good
Boyes Blvd over Sonoma Creek	2022	4,600	Good
Calistoga Road over Porter Creek	1950	4,400	Fair
Agua Caliente Rd over Sonoma Creek	1954	4,300	Fair
Petaluma Blvd N over Petaluma River	1925	4,200	Good
Petaluma Blvd N over Petaluma River	1940	4,200	Fair
State Route 1 over Pocolimi Creek	1960	4,200	Fair
Todd Rd over Colgan Creek Flood Cont	1970	4,100	Fair
Montgomery Dr over Santa Rosa Creek Rsevr	1950	4,000	Fair
Redwood Road over Hinebaugh Creek	1970	4,000	Fair
Watmaugh Road over Rodgers Creek	1960	4,000	Fair
Armstrong Woods Rd over Redwood Creek	1959	3,800	Good
Arnold Dr over Stewart Creek	1928	3,700	Fair
Watmaugh Road over Sonoma Creek	1929	3,628	Fair
Ely Rd over Willow Brook	1959	3,500	Fair
Irr Bia Route 93 over Russian River Tributary	2010	3,500	Good
Pepper Rd over Stemple Creek	1970	3,500	Fair
Pepper Rd over Stemple Creek	1968	3,500	Fair
Graton Rd over Atascadero Creek	1967	3,409	Fair
S101-washington over Washington Street Creek	1955	3,400	Fair
Mountain Hawk Way over Sky Hawk Creek	1995	3,320	Good
Mountain Hawk Way over Sky Hawk Creek	1995	3,320	Good
Alexander Valley R over Russian River - Jimtown	1949	3,300	Fair
Mecham Rd over Stemple Creek	1970	3,300	Fair
Watmaugh Road over Fowler Creek	1920	3,300	Fair
Grange Road over Matanzas Creek	2005	3,250	Good
Slusser Rd over Mark West Creek	1986	3,242	Fair
Crocker Rd over Russian River	1938	3,200	Fair
Rainsville Rd over Marin Creek	1950	3,200	Fair
Rainsville Rd over Wiggins Creek	1986	3,200	Fair
Rainsville Road over Willow Brk (petaluma Rv)	1960	3,200	Fair
Westside Road over Foreman Lane	1961	3,200	Fair
Westside Road over Mill Creek	1961	3,200	Good
Snyder Lane over Copeland Creek	1960	3,124	Fair
Bohemian Hwy over Russian River	1934	3,100	Fair
Coffey Lane over Piner Creek	1960	3,100	Fair
Graton Rd over Purrington Creek	1970	3,100	Fair
Valley Ford Rd over Gossage Creek	1926	3,100	Fair
Valley Ford Rd over Stemple Creek	1915	3,100	Fair
Bell Road over East Windsor Creek	2007	3,000	Fair
Bicentennial Way over Fountaingrove Parkway	1985	3,000	Fair
Conde Lane over Pool Creek	2008	3,000	Fair
Conde Lane over Pruitt Creek	2008	3,000	Good
Corby Ave over Colgan Creek	1930	3,000	Fair
E Cotati Ave over Flood Control Ditch	1960	3,000	Fair
Golf Course Road over Pool Creek	1997	3,000	Fair
Llano Road over Roseland CR Fld Cntl Chn	1970	3,000	Fair
Millbrae Ave over N Br Laguna De Santa Rsa	1963	3,000	Good
Natalie Drive over Windsor Creek	1988	3,000	Fair
Neeley Road over Hillside	1930	3,000	Fair
Neeley Road over Hillside	2006	3,000	Fair
Redwood Dr over Copeland Creek	1956	3,000	Fair
Santa Rosa Av-s101 over U.S. Highway 101	1957	3,000	Fair
Shiloh Road over U.S. Highway 101	1962	3,000	Fair
Tachevah Dr over Drainage Canal	1968	3,000	Fair
Tomales Rd over Stemple Creek	1970	3,000	Poor
Valley Ford Rd over Americano Creek	1985	3,000	Fair
Warm Springs Rd over Calabazas Creek	1928	3,000	Fair
Warm Springs Rd over Sonoma Creek	1960	3,000	Fair
Adobe Rd over Lichau Creek	1929	2,900	Good
Faught Road over Pruitt Creek	1935	2,900	Fair
State Route 128 over Maacama Creek	2011	2,900	Fair
State Route 128 over Redwood Creek	2011	2,900	Good
Valley Ford Rd over Bloomfield Creek	1970	2,900	Good
Dry Creek Rd over Canyon Creek	1963	2,800	Good
Dry Crk Canyon Rd over Dutcher Creek	1968	2,800	Fair
Dry Crk Canyon Rd over Lytton Springs Creek	1935	2,800	Good
Stwrt Pt-skgg Sprg over Dry Creek (board Br)	1951	2,800	Fair
Wild Lilac Lane over Rincon Creek	2000	2,800	Good
State Route 128 over Gird Creek	1983	2,750	Fair
State Route 128 over Sausal Creek	1984	2,750	Fair
Green Valley Rd over Green Valley Creek	1958	2,700	Fair
Sanford Road over E Br Laguna De Santa Rsa	1997	2,700	Fair
Warm Springs Rd over Yulupa Creek	1930	2,700	Fair
State Route 128 over Bidwell Creek	1977	2,650	Fair
State Route 128 over Header Draw	1900	2,650	Fair
State Route 128 over Rockaway Creek	1976	2,650	Fair
State Route 128 over Russian River	2006	2,650	Fair
State Route 128 over Oat Valley Creek	1932	2,550	Fair
Bennett Valley Rd over Yulupa Creek	1970	2,500	Fair
Caulfield Lane over U.S. Highway 101	1974	2,500	Fair
Green Valley Rd over Atascadero Creek	1967	2,500	Poor
Llano Rd over Laguna De Santa Rosa	1962	2,500	Fair
SR 1 over Russian River	1984	2,500	Fair
State Route 1 over Salmon Creek	1983	2,500	Fair
Todd Rd over Laguna De Santa Rosa	1973	2,434	Fair
Ramp/connector 101 over Colgan Creek	1957	2,400	Fair
Rockpile Road over Boat Launch Uc	1985	2,400	Good
Laughlin Rd over Mark West Creek	1910	2,338	Fair
Marlow Road over Piner Creek	1960	2,300	Fair
State Route 1 over Russian Gulch	1940	2,225	Fair
Middle Rincon Rd over Austin Creek	1970	2,200	Fair
State Route 128 over Foote Creek	1982	2,125	Good
4TH St East over Nathanson Creek	1914	2,100	Fair
Bohemian Hwy over Dutch Bill Creek	1935	2,100	Fair
St Helena Road over Hillside	2007	2,100	Fair
St Helena Road over Mark West Creek	1976	2,100	Fair
St Helena Road over Van Buren Creek	1952	2,100	Fair
Watertrough Rd over Atascadero Creek	1975	2,100	Good
Redwood over Laguna De Santa Rosa	1956	2,050	Fair
Apache Street over Paulin Creek	1964	2,000	Fair
Casa Grande Ave over Adobe Creek	1970	2,000	Fair
Cross Creek Road over Mark West Creek S Branch	1991	2,000	Good
Fountain Grove Pkw over Chanate Road	1997	2,000	Fair
Fountain Grove Pkw over Chanate Road	1997	2,000	Good
Hoen Avenue over Spring Creek	1955	2,000	Good
Kastania Road over US Highway 101	2014	2,000	Good
Macarthur Street over Nathanson Creek	1965	2,000	Fair
Mark W Spring Rd over Mark West Creek	1976	2,000	Good
Old Redwood Hwy over Windsor Creek	1995	2,000	Fair
Pleasant Ave over Pool Creek	1925	2,000	Good
Rinconada Dr over Ducker Creek	1960	2,000	Good
Stone Bridge Road over Meadow Creek	1978	2,000	Good
Wild Oak Drive over Oakmont Creek	1963	2,000	Good
Lone Pine Rd over Blucher Creek	1958	1,950	Fair
Wilfred Ave over Belview-wilfred Creek	1963	1,857	Poor
Bohemian Hwy over Salmon Creek	1971	1,850	Good
Grove Rd over Carriger Creek	1960	1,850	Fair
Grant St over Foss Creek	1920	1,830	Fair
Fourth St over Fife Creek	1926	1,800	Fair
Limerick Lane over US Highway 101	1962	1,800	Fair
Llano Rd over Colgan Creek	1979	1,750	Poor
Westside Rd over Porter Creek	1921	1,738	Good
Ludwig Ave over Roseland CR Fld Cntl Chn	1980	1,700	Fair
Trenton Healdsbrg over Mark West Creek	1988	1,700	Fair
Rockpile Road over Warm Springs Creek	1978	1,650	Good
Casa Grande Ave over Adobe Creek	1970	1,600	Fair
Main Street over Dutch Bill Creek	1975	1,600	Good
Skillman Lane over Wilson Creek	1960	1,600	Fair
Old Gravenstein Hy over Blucher Creek	1925	1,562	Good
Cazadero Hwy over Austin Creek	1956	1,550	Fair
Cazadero Hwy over Austin Creek	1956	1,550	Fair
Cazadero Hwy over St Elmo Creek	1957	1,550	Good
8TH St East over Schell Creek	1968	1,500	Poor
Bridgewood Dr over Rincon Creek	1962	1,500	Good
Lichau Rd over Copeland Creek	1968	1,500	Fair
Snyder Ln over Branch of Five Creek	1965	1,500	Fair
Snyder Ln over Crane Crk (snyder)	1965	1,500	Fair
Windsor Rd over Branch Windsor Creek	1946	1,500	Fair
Sartori Dr over Adobe Creek	1976	1,475	Poor
Cazadero Hwy over Hillside	2005	1,450	Fair
Cazadero Hwy over Hillside	2011	1,450	Fair
Cazadero Hwy over Kidd Creek	1974	1,450	Good
Mill Station Rd over Atascadero CR Overflow	1964	1,450	Poor
Mill Station Rd over Atascadero Creek	1964	1,450	Fair
Bodega Hwy over Salmon Creek	1962	1,400	Fair
Sonoma Mtn Rd over Matanzas Creek	1930	1,400	Fair
Sexton Road over Jonive Creek	1964	1,210	Fair
Ferguson Rd over Jonive Creek	1962	1,200	Fair
Roblar Rd over Americano Creek	1964	1,200	Good
Yulupa Avenue over Santa Rosa Creek	1996	1,200	Good
Todd Road over U.S. Highway 101 & Ramps	1957	1,100	Fair
Alderbrook Dr over Santa Rosa Creek	1979	1,000	Good
Commerce Blvd over Copeland Creek	1966	1,000	Good
Fairway Drive over Coleman Creek	1977	1,000	Fair
Hillview Way over Coleman Creek	1979	1,000	Fair
Kinley Dr over West Norton Slough	1960	1,000	Fair
Montecito Blvd over Ducker Creek	1983	1,000	Good
North Redwood Hwy over Ncrra (old Nwp RR)	1985	1,000	Fair
Pressley Rd over Copeland Creek	1968	1,000	Fair
Talbot Ave over Santa Rosa Creek	1953	1,000	Fair
Watmaugh Road over Nathanson Creek	1920	1,000	Fair
Old Cazadero Rd over Hubert Creek	1955	950	Fair
Dutcher Creek Rd over Dutcher Creek	1957	900	Fair
Great Heron Drive over Sky Hawk Creek	1995	900	Fair
River Blvd over Madrone Mill Creek	1974	900	Fair
Chalk Hill Rd over Brooks Creek	1956	850	Fair
Chalk Hill Rd over Franz Creek	1965	850	Good
Lambert Bridge Rd over Dry Creek	1915	838	Fair
Main St over Dutch Bill Creek	1953	838	Poor
Willowside Rd over Santa Rosa Fl Con Chan	1965	832	Fair
Wohler Rd over Russian River	1921	828	Fair
Moscow Rd over Hillside	1956	825	Fair
2ND Street over Nathanson Creek	1909	820	Fair
Annapolis Rd over Gualala Riv (clark Xing)	1920	800	Fair
Chalk Hill Rd over Maacama Creek	1915	800	Fair
Dunbar Rd over Calabazas Creek	1915	800	Fair
Grandview Rd over Jonive Creek	1956	800	Fair
Labath Ave over Hinebaugh Creek	1979	800	Fair
Moscow Rd over Russian River	1966	800	Good
Warm Springs Rd over Sonoma Creek	1931	800	Fair
Yoakim Bridge Rd over Dry Creek	1956	800	Fair
E Railroad Ave over Lichau Creek	1970	750	Fair
France St over Nathanson Creek	1918	750	Fair
W Dry Creek Road over Pine Ridge Canyon	1928	750	Good
Bailhache Road over Hillside	1985	700	Fair
Canfield Rd over Blucher Creek	1927	700	Good
Moscow Rd over Hillside	1985	700	Fair
Moscow Road over Hillside	1960	700	Fair
Moscow Road over Hillside	1960	700	Fair
Adobe Canyon Road over Hillside	1965	650	Fair
Lawndale Road over Kern Creek	1984	650	Fair
Scenic Ave over No Name Creek	1950	615	Fair
Laughlin Rd over Fife Creek	1956	602	Fair
Mill Creek Rd over Mill Creek	1957	600	Fair
Sonoma Mtn Rd over Hillside	2011	600	Fair
Vacation Beach Rd over Russian Riv Summer Xing	1977	600	Fair
Lawndale Rd over Sonoma Creek	1900	550	Good
Fitch Mountain Rd over Hillside	1970	525	Fair
Fitch Mountain Rd over Hillside	1955	525	Fair
Bloomfield Rd over Bloomfield Creek	1917	524	Poor
Railroad Ave over Dowdall Creek	1961	524	Fair
Burgess Drive over Colgan Creek Flood C Chn	1994	500	Good
Channel Drive over Santa Rosa Crk Div Chan	1959	500	Fair
Commerce Blvd over Hinebaugh Creek	1970	500	Fair
Franz Valley Road over Franz Creek	1977	500	Fair
Gamay Street over Steel Creek	1989	500	Fair
Geysers Rd over Gird Creek	1960	500	Fair
Geysers Rd over Little Sulphur Creek	1983	500	Good
Holly Lane over Washington Creek	1997	500	Fair
Melita Road over Santa Rosa Creek	1915	500	Good
Moscow Road over Hillside	2023	500	Good
N Mcdowell Blvd over Willow Brook Creek	1992	500	Fair
Oakmont Drive over Golf Creek	1981	500	Good
Odonnell Lane over Calabazas Creek	1900	500	Fair
Pierson St over Santa Rosa Creek	1960	500	Fair
River Road over Big Sulphur Creek	1988	500	Fair
Salmon Creek Road over Salmon Creek	1958	500	Fair
Thomas Lk Haris Dr over Stonefield Arch	1989	500	Fair
Wohler Rd over Mark West Creek	2023	500	Fair
Sonoma Mtn Rd over Lynch Creek	1984	475	Fair
Canyon Rd over Canyon Creek	1928	416	Fair
Anapolis Rd over South Fork Gualala River	1974	400	Fair
Anapolis Rd over Wheatfield Fk Gualala Ri	1974	400	Fair
Annapolis Road over Little Fuller Creek	1976	400	Fair
Bellevue Ave over Colgan CR Fld Cntrl Chnl	1964	400	Fair
Fitch Mountain Rd over Hillside	1999	400	Fair
Hyde Road over Arroyo Seco	1965	400	Fair
Mark West Sta Rd over Windsor Creek	1976	400	Fair
Ramal Road over Ramal Creek	1970	400	Fair
Skaggs Springs Rd over Warm Springs Creek	1978	400	Fair
River Road over Gill Creek	1962	367	Fair
Franz Valey Sch Rd over Franz Creek	1946	350	Poor
Oak St over Dowdall Creek	1940	350	Fair
Dutton Meadow over Colgan CR Fld Cntrl Chnl	1964	300	Good
Fir Road over Dutch Bill Creek	1974	300	Poor
Fitzpatrick Lane over Fay Creek	1973	300	Fair
Madison Street over Washington Creek	1970	300	Fair
Stwrt Pt-skgg Sprg over Hillside	1970	300	Fair
Stwrt Pt-skgg Sprg over Hillside	2003	300	Fair
Stwrt Pt-skgg Sprg over Hillside	2011	300	Fair
Stwrt Pt-skgg Sprg over House Creek	1921	300	Fair
Stwrt Pt-skgg Sprg over Shingle Mill CR (ohlson)	1935	300	Fair
Stwrt Pt-skgg Sprg over South Fork Gualala River	1984	300	Good
Stwrt Pt-skgg Sprg over Wolf Creek Culvert East	1978	300	Good
Stwrt Pt-skgg Sprg over Wolf Creek Culvert West	1978	300	Good
West Dry Creek Rd over Pena Creek	1924	300	Fair
Westside Road over Hillside	1987	300	Fair

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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.