Home › California › Mendocino County › All bridges

Every bridge in Mendocino County, California

Name: Every bridge in Mendocino County, California
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

356 inventoried bridges, busiest first

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

Mendocino County, California, has 356 bridges in the 2025 National Bridge Inventory: 124 rated good, 205 fair, and 27 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
State Route 001 over Noyo River & Harbor Dr	2005	23,950	Good
State Route 1 over Pudding Creek	1959	23,950	Good
U.S. Highway 101 over Austin Creek	1964	20,900	Good
North State St over Forsythe Creek	1949	20,200	Fair
U.S. Highway 101 over Baker Creek	1971	19,000	Good
U.S. Highway 101 over Forsythe Creek	1990	19,000	Fair
U.S. Highway 101 over Ncrra/nwp RR	1957	19,000	Fair
State Route 20 over Baechtel Creek	1937	18,350	Good
N State St over Orrs Creek	1926	18,278	Fair
E Gobbi St over U.S. Highway 101	1964	18,100	Good
US Highway 101 over Haehl Baechtl Cv Rd C St	2016	18,000	Good
US Highway 101 over Haehl Creek	2016	18,000	Good
US Highway 101 over Quail Meadows Road	2016	18,000	Good
US Highway 101 over Railroad Tracks	2016	18,000	Good
East Perkins St over U.S. Highway 101	1964	17,350	Fair
US Highway 101 over East Hill Road	2016	16,000	Fair
US Highway 101 over Upp Creek	2016	16,000	Good
N State St over Ackerman Creek	1965	15,534	Fair
N State St over Hensley Creek	1973	15,190	Fair
Rg State Park Road over Russian Gulch	1953	15,000	Fair
State Route 1 over Hare Creek	1947	14,500	Good
State Route 20 over Russian River RR Calpell	2024	14,400	Good
U.S. Highway 101 over Crawford Creek	1942	13,800	Good
U.S. Highway 101 over Feliz Creek	1934	13,800	Fair
U.S. Highway 101 over Mcnab Creek	1942	13,800	Fair
U.S. Highway 101 over Ncrra/nwp RR	1966	13,800	Fair
U.S. Highway 101 over Rosetti Creek	1942	13,800	Good
U.S. Highway 101 over Russian River	1934	13,800	Fair
US Highway 101 NB over Ackerman Creek	1962	13,750	Good
US Highway 101 NB over Hensley CR Hensley CR Rd	1962	13,750	Good
US Highway 101 SB over Ackerman Creek	1962	13,750	Good
US Highway 101 SB over Hensley CR Hensley CR Rd	1962	13,750	Good
State Route 101 over Ncrra/nwp RR	1969	13,500	Fair
U.S. Highway 101 over Hillside Above River	1989	13,300	Good
U.S. Highway 101 over Pieta Creek	2003	13,300	Fair
U.S. Highway 101 over Russian Ncra/nwp Geysers	1989	13,300	Fair
US Highway 101 over Frog Woman Slide	1998	13,300	Good
US Highway 101 NB over Lake Mendocino Dr	1962	12,300	Fair
US Highway 101 NB over Moore Street	1962	12,300	Fair
US Highway 101 NB over Pomo Lane	1962	12,300	Fair
US Highway 101 NB over St Rte 20 (@ Pm 33.22)	1962	12,300	Fair
US Highway 101 NB over York Creek	1962	12,300	Fair
US Highway 101 SB over Lake Mendocino Dr	1962	12,300	Fair
US Highway 101 SB over Moore Street	1962	12,300	Fair
US Highway 101 SB over Pomo Lane	1962	12,300	Fair
US Highway 101 SB over St Rte 20 (@ Pm 33.22)	1962	12,300	Fair
US Highway 101 SB over York Creek	1962	12,300	Fair
State Route 20 over East Fork Russian River	1958	11,350	Fair
US 101 NB over North State Street	1964	10,450	Good
US Highway 101 NB over Doolin Creek	1964	10,450	Good
US Highway 101 NB over Gibson Creek	1964	10,450	Fair
US Highway 101 NB over Ncra/nwp Ford Masonite	1964	10,450	Good
US Highway 101 NB over Ncra/nwp RR & Norgard Ln	1964	10,450	Fair
US Highway 101 NB over Orrs Creek	1964	10,450	Fair
US Highway 101 SB over Doolin Creek	1964	10,450	Good
US Highway 101 SB over Gibson Creek	1964	10,450	Good
US Highway 101 SB over Ncra/nwp Ford Masonite	1964	10,450	Good
US Highway 101 SB over Ncra/nwp RR & Norgard Ln	1964	10,450	Fair
US Highway 101 SB over North State Street	1964	10,450	Good
US Highway 101 SB over Orrs Creek	1964	10,450	Fair
State Route 20 over Cold Creek	1967	10,400	Fair
State Route 20 over Cold Creek	1967	10,400	Good
State Route 20 over Cold Creek	1965	10,400	Fair
State Route 20 over Cold Creek	1967	10,400	Good
State Route 20 over Cold Creek	1967	10,400	Good
State Route 1 over Jug Handle Creek	1938	10,350	Fair
State Route 1 over Caspar Creek	1966	9,900	Good
State Route 1 over Jack Peters Creek	1939	9,900	Fair
State Route 1 over Russian Gulch	1939	9,900	Fair
North State St over Masonite Haul Road	1949	8,701	Good
Route 101N Onramp over Upp Creek	2016	8,000	Good
Route 101S Offramp over Upp Creek	2016	8,000	Good
Rte 101S - Rte 20W over Haehl Creek	2016	8,000	Good
Rte 20E - Rte 101N over Haehl Creek	2016	8,000	Good
SR 222 (talmadge) over U.S. 101 (@ Pm R23.45)	1964	8,000	Fair
State Route 222 over Russian River	2011	8,000	Good
US Highway 101 N over Route 20	2016	8,000	Good
US Highway 101 S over Route 20	2016	8,000	Good
US Highway 101 over Haehl Creek	2016	8,000	Good
US Highway 101 over Haehl Creek	2016	8,000	Good
US Highway 101 over Upp Creek	2017	8,000	Good
U.S. Highway 101 over Robinson Creek	1940	7,350	Fair
US Highway 101 NB over Robinson Creek	1963	7,350	Fair
North Main Street over Willits Creek (mill Crk)	1923	7,200	Good
South Main Street over Broaddus Creek	1926	7,200	Good
N State St over York Creek	1980	7,012	Poor
U.S. Highway 101 over Outlet Creek	1979	6,950	Fair
U.S. Highway 101 over Long Valley Creek	1960	6,750	Poor
U.S. Highway 101 over Ten Mile Creek	1953	6,750	Fair
U.S. Highway 101 over Long Valley Creek	1960	6,700	Good
U.S. Highway 101 over Long Valley Creek	1959	6,700	Fair
U.S. Highway 101 over Long Valley Creek	1957	6,700	Poor
U.S. Highway 101 over Outlet Crk & Ncra/nwp RR	1957	6,700	Fair
State Route 1 over Big River	1961	6,300	Fair
U.S. Highway 101 over Rattlesnake Creek	1931	6,200	Fair
U.S. Highway 101 over Rattlesnake Creek	1952	6,200	Fair
U.S. Highway 101 over SR 271 (@ Pm 0.02)	1967	6,150	Fair
U.S. Highway 101 over SR 271 (@ Pm 3.38)	1967	6,150	Fair
U.S. Highway 101 over Bear Pen Rd (private)	1976	6,100	Fair
U.S. Highway 101 over Bridges Creek	1980	6,100	Fair
U.S. Highway 101 over Cedar Creek	1969	6,100	Fair
U.S. Highway 101 over Co Rd South Fork Eel Riv	1970	6,100	Good
U.S. Highway 101 over Dora Creek	1985	6,100	Fair
U.S. Highway 101 over Jitney Gulch	1965	6,100	Fair
U.S. Highway 101 over Marion Lane	1970	6,100	Fair
U.S. Highway 101 over Red Mountain Creek	1955	6,100	Fair
U.S. Highway 101 over Rock Creek	2000	6,100	Fair
U.S. Highway 101 over South Fork Eel River	1974	6,100	Fair
U.S. Highway 101 over South Fork Eel River	2009	6,100	Fair
U.S. Highway 101 over South Fork Eel River	2009	6,100	Good
U.S. Highway 101 over St Rte 271 (@ Pm 19.46)	1970	6,100	Fair
U.S. Highway 101 over Standley CR Rd (private)	1974	6,100	Fair
Vichy Springs Rd over Russian River	1986	5,718	Fair
State Route 1 over Mill Creek	1993	5,600	Good
State Route 20 over Broaddus Creek	1966	5,450	Fair
State Route 128 over Anderson Creek	2005	5,200	Fair
SR 175 WB over Hillside	1986	4,800	Good
State Route 175 over Dooley Creek	1946	4,800	Fair
State Route 175 over Russian River	1940	4,800	Good
West Road over U.S. Highway 101	1990	4,725	Fair
North Bush Street over Orrs Creek	1972	4,692	Poor
State Route 1 over Little River	1955	4,550	Fair
East Road over Salt Hollow Creek	1940	4,439	Fair
State Route 1 SB over Oceanside Bluff	2003	4,200	Good
State Route 1 over Gualala River	1958	4,200	Good
State Route 128 over Indian Creek	1953	4,150	Fair
S101-talmage Rd over Doolin Creek	1964	4,000	Good
E Side Potter Vly over East Fork Russian River	1999	3,699	Fair
School Way over West Branch Russian Riv	2016	3,521	Good
State Route 128 over Flynn Creek	1955	3,300	Good
State Route 128 over Mill Creek	1931	3,300	Good
State Route 128 over North Fork Navarro River	1953	3,300	Fair
Orr Springs Rd over Ackerman Creek	1956	3,101	Fair
State Route 1 over Salmon Creek	1950	3,100	Poor
Irr Bia Rte 167 over Cahto Creek	1978	3,000	Fair
State Route 1 over Moat Creek	1939	2,900	Good
State Route 1 over Schooner Gulch	1941	2,900	Good
Moore Ave over West Branch Russian Riv	1958	2,776	Poor
State Route 20 over Broaddus Creek	1991	2,700	Good
State Route 20 over Broaddus Creek	1991	2,700	Good
State Route 253 over U.S. 101 (@ Pm R21.59)	1964	2,700	Fair
State Route 20 over Chamberlain Creek	1948	2,600	Fair
State Route 20 over James Creek	1962	2,600	Good
Orr Springs Road over U.S. Highway 101	1962	2,588	Good
Lake Mendocino Dr over Russian River	1987	2,514	Fair
E Side Potter Vly over East Fork Russian River	1973	2,352	Poor
State Route 128 over Dry Creek	2005	2,300	Fair
State Route 128 over Robinson Creek	1939	2,300	Good
State Route 253 over Anderson Creek	1965	2,300	Fair
State Route 253 over Robinson Creek	1962	2,300	Fair
State Route 253 over Soda Creek	1925	2,300	Fair
Irr Branscomb Rd over Tenmile Creek	1952	2,216	Fair
State Route 162 over Grist Creek	1983	2,200	Good
State Route 162 over Little Slough	1958	2,200	Good
State Route 162 over Mill Creek	1958	2,200	Good
State Route 162 over Short Creek	1962	2,200	Fair
State Route 162 over Town Creek	1983	2,200	Good
State Route 1 over Albion River	1944	2,100	Poor
State Route 1 over Garcia River	1938	2,100	Good
State Route 1 over Hathaway Creek	1995	2,100	Good
State Route 128 over Beebe Creek	1931	2,050	Fair
State Route 128 over Maple Creek	1939	2,050	Fair
State Route 128 over Ornbaun Creek	1939	2,050	Fair
State Route 128 over Shearing Creek	1939	2,050	Good
East Hill Road over Davis Creek	2019	2,000	Good
North State St over State Route 20	1962	1,943	Fair
North State St over W20-n101 Connector Ramp	1962	1,943	Fair
Uva Drive over Forsythe Creek	1990	1,830	Good
E Side Potter Vly over Burright Creek	1935	1,821	Fair
State Route 1 over Alder Creek	1947	1,800	Good
State Route 1 over Brush Creek	1956	1,800	Good
Ford St over Orrs Creek	1977	1,751	Fair
Hearst-willits Rd over Davis Creek	1950	1,648	Fair
Oak St over Orrs Creek	1955	1,599	Fair
State Route 1 over Ten Mile River	2009	1,500	Good
East Hill Rd over Haehl Creek	1980	1,438	Fair
Hawn Creek Rd over Williams Creek	1930	1,375	Good
Hearst-willits Rd over Haehl Creek	1952	1,375	Fair
Comptche-ukiah Rd over North Fork Albion River	1965	1,316	Fair
Mountain House Rd over Feliz Creek	1991	1,272	Fair
Mountain House Rd over Cummiskey Creek	1913	1,252	Fair
Main St over East Fork Russian River	1928	1,203	Good
State Route 1 over Hardy Creek	1959	1,185	Good
State Route 1 over Hillside	1985	1,185	Fair
State Route 1 over Howard Creek	1972	1,185	Good
State Route 1 over Juan Creek	1961	1,185	Good
State Route 1 over Oceanside Bluff	1999	1,185	Good
State Route 1 over South Fork Cottoneva Crk	1958	1,185	Good
Center Valley Rd over Baechtel Creek	1953	1,166	Good
Center Valley Rd over Haehl Creek	1953	1,166	Fair
Old River Road over Morrison Creek	1996	1,115	Good
State Route 1 over Elk Creek	1938	1,100	Fair
State Route 1 over Greenwood Creek	2014	1,100	Good
State Route 1 over Navarro River	1949	1,100	Good
Orr Springs Rd over South Fork Big River	1959	1,002	Fair
E Commercial St over Broaddus Creek	1966	1,000	Fair
E Valley St over Broaddus Creek	1993	1,000	Fair
Mill Creek Dr over Mill Creek	1980	1,000	Fair
Treatment Plant Rd over U.S. Highway 101	1964	1,000	Fair
Irr East Lane over Mill Creek	1989	889	Fair
State Route 162 over Bloody Run Creek	1959	860	Fair
State Route 162 over Corral Creek	1959	860	Fair
State Route 162 over Eel River	1938	860	Good
State Route 162 over Long Valley Creek	1995	860	Fair
State Route 162 over Middle Fork Eel River	1985	860	Good
State Route 162 over Outlet Creek	1958	860	Poor
State Route 162 over Rodeo Creek	1940	860	Fair
Clover Rd over Willits Creek	1967	850	Fair
East Rd over West Branch Russian Riv	1990	846	Fair
SR 001 over Westport North Sidehill	2018	830	Good
State Route 1 over Blue Slide Gulch	1946	830	Fair
State Route 1 over De Haven Creek	1964	830	Good
State Route 1 over Wages Creek	1977	830	Good
State Route 1 over Cottoneva Creek	1958	810	Good
State Route 1 over Dunn Creek	2014	810	Fair
State Route 271 over U.S. 101 (@ Pm R101.90)	1976	810	Fair
Mendocino Pass Rd over Middle Fork Eel River	1983	779	Fair
Old River Road over Crawford Creek	1948	777	Fair
Sanford Ranch Road over Mc Clure Creek	1955	777	Fair
Blosser Lane over Broaddus Creek	1989	750	Good
State Route 271 over U.S. 101 (@ Pm R89.56)	1970	750	Fair
Sherwood Rd CR311 over Rowes Creek	2020	721	Good
State Route 1 over South Fork Eel River	1944	700	Fair
Flynn Creek Rd 135 over Albion River	2008	670	Good
Flynn Creek Rd 135 over Marsh Creek	2007	670	Good
Geysers Rd/cr 101A over Ash Creek	1932	650	Fair
Sherwood Road over Dutch Henry Creek	1985	648	Fair
Ruddck-cunninhm Rd over Hildreth Creek	1955	619	Fair
Ruddck-cunninhm Rd over Howell Creek	1958	619	Good
Parducci Road over U.S. Highway 101	1962	610	Fair
Mountain View Rd over Robinson Creek	1968	575	Good
Mountain House Rd over Wilson Creek	1912	572	Good
Gibson Lane over East Fork Russian River	1955	561	Poor
Poppy Dr over Willits Creek	1977	545	Fair
Primrose Dr over Willits Creek	1967	545	Fair
Old River Road over Parsons Creek	1948	515	Fair
Tomki Rd over Rocky Creek	1933	512	Fair
Canyon Rd over Berry Creek	1966	501	Fair
Robinson Oc over U.S. Highway 101	1963	500	Good
Branscomb Rd over Cahto Creek	1991	478	Fair
Power House Rd over Busch Creek	1948	440	Fair
Fish Rock Rd over Rancheria Creek	1978	429	Fair
Philo Greenwood Rd over Navarro River	1949	418	Poor
Navarro Ridge Road over Hay Creek	1980	417	Fair
Canyon Rd over Berry Creek	1960	408	Fair
Branscomb Rd over Windem Creek	1950	406	Fair
Road B over Salt Hollow Creek	1967	399	Fair
Tomki Rd over Mossy Canyon Creek	1960	393	Fair
Hearst-willits Rd over Haily Creek	1980	387	Fair
Lambert Lane over Robinson Creek	1954	379	Poor
Irr Sherwood Rd over Curley Cow Creek	1988	377	Fair
Steele Rd over Tenmile Creek	1980	347	Fair
Eureka Hill Road over Garcia River	1969	330	Fair
El Roble Oc over U.S. Highway 101	1963	325	Fair
Muir Mill Rd 301C over Baechtel Creek	2016	311	Good
Railroad Avenue over Baechtel Creek	2011	300	Fair
Eel River Rd over Eel River	1989	279	Fair
Mendocino Pass Rd over Williams Creek	1983	226	Fair
Central Ave over U.S. Highway 101	1962	224	Good
Dobie Rd over Turner Creek	1979	210	Fair
Dobie Rd over Turner Creek	1979	210	Fair
Irr East Lane over Short Creek	1973	210	Fair
Hearst-willits Rd over String Creek	1956	208	Fair
Frontage Road over Long Valley Creek	1960	200	Good
Mountain View Rd over Rancheria Creek	1935	195	Poor
East Side Road over Berry Creek	1981	182	Good
Robinson Creek Rd over Robinson Creek	1956	168	Fair
Robinson Creek Rd over Robinson Creek	1975	168	Fair
Irr Frtbrg-srwd Rd over Reservation Creek	1985	167	Fair
Elkhorn Road over Rancheria Creek	1985	165	Fair
Fish Rock Rd over Pardaloe Creek	1960	165	Fair
Pine Avenue over Burright Creek	1999	165	Fair
Route 271 over Mc Coy Creek	2019	150	Good
Ryan Creek Road over Ryan Creek	2011	150	Good
State Park Road over Little River	1951	150	Poor
State Route 271 over Big Dann Creek	1933	150	Fair
State Route 271 over Cedar Creek	1933	150	Good
Dos Rios Rd over Eel River & Ncrra (nwp)	1966	143	Fair
Irr Mina Rd over North Fork Eel River	1967	143	Fair
Airport Rd over Town Creek	1994	142	Fair
Hutsell Rd (CR123) over Robinson Creek	1960	139	Fair
Irr Sherwood Road over Sherwood Creek	1947	139	Fair
Laytnvlle-dos Rios over Burger Creek	1888	137	Fair
Sherwood Rd over Sherwood Creek	1979	137	Poor
Orr Springs Rd over South Fork Big River	1955	134	Poor
Orr Springs Rd over South Fork Big River	1976	134	Good
Orr Springs Rd over South Fork Big River	1971	134	Fair
Orr Springs Rd over South Fork Big River	1973	134	Fair
Powerhouse Rd 248A over Williams Creek	2020	134	Good
Reeves Canyon Road over Forsythe Creek	2018	130	Good
Tomki Rd over Tomki Creek	1988	130	Fair
Ft Brag-shrwd Rd over Sherwood Creek	1987	126	Fair
Hibbard Road over Rancheria Creek	1987	126	Fair
Forest Road 320 over South Fork Noyo River	1948	125	Fair
CR 110 over Feliz Creek	2013	117	Good
County Rd 110 over Johnson Creek	1993	114	Good
Wilderness Ldge Rd over South Fork Eel River	1992	114	Fair
Hearst-willits Rd over Salt Creek	1970	108	Good
Reeves Canyon Road over Mill Creek	1981	105	Poor
Reeves Canyon Road over Mill Creek	1980	105	Fair
Reeves Canyon Road over Mill Creek	1980	105	Fair
Reeves Canyon Road over Mill Creek	1980	105	Fair
Rg State Park Road over Russian Gulch	1960	105	Good
Branscomb Rd over Redwood Creek	1967	104	Good
Branscomb Rd over South Fork Eel River	1961	104	Good
Branscomb Road over Kenny Creek	1957	104	Good
Branscomb Road over Redwood Creek	1981	104	Fair
Wilderness Ldge Rd over Dutch Charlie Creek	1969	104	Fair
Sherwood Rd over Sam Watt Creek	1960	103	Fair
Reeves Canyon Road over Mill Creek	2012	100	Fair
State Park Road over Little River	1995	100	Fair
Gualala Road over North Fork Gualala River	1940	97	Poor
State Route 271 over Hillside Above River	1947	95	Fair
State Route 271 over South Fork Eel River	1917	95	Fair
Old Sherwood Rd over Long Valley Creek	1989	81	Fair
Hill Road over Mill Creek	1925	78	Poor
Forest Road 200 over Chamberlain Creek	1958	75	Good
Forest Road 200 over Park Gulch	1958	75	Good
Forest Road 200 over West Chamberlain Creek	1957	75	Fair
Anderson Valley Hw over Con Creek	1938	72	Good
Cemetery Lane over Grist Creek	1960	72	Fair
Old Toll Rd/cr 108 over Coleman Creek	1940	72	Fair
Ridgeway Hwy CR249 over Whitney Creek	1960	68	Fair
Hearst-willits Rd over Eel River	1957	66	Fair
Hollands Lane over Branch of Haehl Creek	1925	62	Fair
Old Toll Rd/cr 108 over Mc Dowell Creek	1969	60	Fair
Reeves Canyon Road over Mill Creek	1999	51	Fair
Forest Road 300 over North Fk of Sout Fk Noyo	1958	50	Good
Forest Road 300 over Parlin Creek	1958	50	Fair
Forest Road 360 over South Fork Noyo River	1987	50	Fair
Forest Road 640 over North Fork Caspar Creek	1994	50	Fair
Forest Road 800 over North Fork Big River	1958	50	Fair
Jack of Hearts Roa over DARK Canyon crk	1985	50	Fair
Jack of Hearts Roa over Jack of Hearts Creek	1998	50	Fair
Road M1 over Black Butte River	1986	50	Poor
Rg State Park Road over Russian Gulch	1960	45	Fair
Robinson Creek Rd over Robinson Creek	2004	40	Fair
Forest Road 360 over North Fk of S Fk Noyo	1958	30	Good
Guntly Rd (CR 260) over Cold Creek	1922	27	Fair
Briceland Rd CR435 over Mattole River	1967	26	Fair
Forest Road 100 over James Creek	1980	25	Fair
Forest Road 330 over Parlin Creek	2005	25	Poor
Forest Road 900 over James Creek	1981	25	Fair
Forest Road 900 over North Fork Big River	1982	25	Fair
Low Gap Road over Masonite Industrial Road	1960	25	Poor
State Park Road over Little River	1951	25	Fair
Usal Road over Usal Creek	1955	24	Fair
Reynolds Highway over Outlet Creek	1955	19	Poor
Hull Valley Rd over Hulls Creek	1994	11	Fair
Forest Road 400 over Bunker Gulch	1992	10	Poor
Forest Road 452 over Hare Creek	1997	10	Poor
Forest Road 600 over Caspar Creek	1972	10	Fair
Masonite Road over U.S. Highway 101	1962	5	Good
Road 20n05 over Eel River	1981	5	Fair
Camp 1 Ten Mile Rd over South Fork Tenmile River	1965	2	Poor
Forest Road 610 over South Fork Caspar Creek	1965	2	Poor

Source: FHWA National Bridge Inventory, 2025.

Mendocino County bridge conditions · California bridges by county.

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