Bridges in Marin County, California

207Total Bridges

91Good

100Fair

16Poor

Bridge	Condition	Length	Traffic	Year
U.s. Highway 101 over Novato Creek	Poor	191.9 ft	61,500	1974
Sir Francis Drake over Lagunitas Creek	Poor	192.9 ft	25,582	1964
U.s. Highway 101 over Corte Madera CR & EB Sfd	Poor	1648.0 ft	19,700	1959
Freitas PKWY over U.s. Highway 101	Poor	277.9 ft	18,000	1960
Ignacio Boulevard over U.s. Highway 101	Poor	268.0 ft	12,900	1964
Lincoln AVE over San Rafael Creek	Poor	60.0 ft	11,601	1959
Novato BLVD over Novato Creek	Poor	98.1 ft	10,024	1969
State Route 1 over Redwood Creek	Poor	40.0 ft	3,800	1926
Kerner BLVD over Indst Prk Drainage Canal	Poor	44.6 ft	3,600	1972
State Route 1 over Lagunitas Creek	Poor	151.6 ft	3,500	1929
Bear Valley RD over Olema Creek	Poor	82.0 ft	3,500	1937
Novato BLVD over Bowman Canyon	Poor	23.0 ft	3,056	1948
Beach RD (main St) over San Francisco Bay	Poor	67.3 ft	2,000	1918
Marshall Petlum RD over Salmon Creek	Poor	34.1 ft	328	1931
Azalea AVE over Fairfax Creek	Poor	30.8 ft	110	1930
Meadow Way over San Anselmo Creek	Poor	69.9 ft	55	1950
US Highway 101 over North San Pedro Road	Fair	174.9 ft	180,000	1979
U.s. Highway 101 over Lincoln Ave-n101 On Ramp	Fair	92.5 ft	180,000	1938
U.s. Highway 101 over Corte Madera CR & Sfd Bl	Fair	1265.1 ft	172,000	1957
U.s. Highway 101 over N Branch Gallinas Creek	Fair	43.0 ft	159,000	1951
U.s. Highway 101 over Miller Creek	Fair	87.9 ft	151,000	1952
U.s. Highway 101 over Arroyo De San Jose	Fair	27.9 ft	139,000	1928
U.s. Highway 101 over Golden Gate-san Fran Bay	Fair	8997.0 ft	90,932	1937
State Route 580 over Bellam Boulevard	Fair	122.0 ft	67,000	1959
U.s. Highway 101 over 2nd 3rd 4th 5th Mssn	Fair	2794.0 ft	64,500	1965
U. S. Highway 101 over 2nd 3rd 4th 5th Mssn	Fair	2210.0 ft	64,500	1941
U.s. Highway 101 over Franklin Av & Nwp Rr	Fair	395.0 ft	61,500	1974
U.s. HWY 101 SB over Olive Avenue	Fair	125.3 ft	61,500	1974
U.s. HWY 101 NB over Olive Avenue	Fair	126.0 ft	61,500	1974
U.s. Highway 101 over Hillside	Fair	270.0 ft	53,000	1954
Tamalpais Drive over US Highway 101	Fair	801.8 ft	40,000	1957
State Route 37 over Atherton Avenue	Fair	177.5 ft	35,500	1959
State Route 37 over Atherton Avenue	Fair	177.5 ft	35,500	1959
State Route 37 over Petaluma River	Fair	2183.1 ft	34,000	1958
Sir-francis Drake over San Anselmo Creek	Fair	44.0 ft	34,000	1929
State Route 1 over Coyote Creek	Fair	102.4 ft	30,500	1954
De Long Avenue over U.s. Highway 101	Fair	221.1 ft	30,160	1974
U.s. Highway 101 over Corte Madera CR & Sfd Bl	Fair	1765.1 ft	26,000	1961
Diablo AVE over Novato Creek	Fair	32.2 ft	25,882	1966
Bel Marin Keys Bl over Arroyo San Jose	Fair	57.1 ft	20,883	1970
Grand AVE over San Rafael Creek	Fair	242.1 ft	19,800	1965
W37-s101&n101 Off over County RD US 101 Nwprr	Fair	1059.1 ft	18,000	1964
State Route 37 WB over Novato Creek	Fair	720.1 ft	17,000	1959
State Route 37 EB over Novato Creek	Fair	720.1 ft	17,000	1959
Center BLVD over San Anselmo Creek	Fair	76.1 ft	14,000	1940
S Novato BLVD over W37-s101 Connector Ramp	Fair	160.1 ft	12,500	1964
Center BLVD over San Anselmo Creek	Fair	44.9 ft	12,000	1935
Ignacio BLVD over Arroyo San Jose	Fair	26.9 ft	11,820	1960
Miller Creek Road over U.s. Highway 101	Fair	289.0 ft	9,280	1961
Merrydale Road over US 101 & Merrydale RD	Fair	376.6 ft	9,170	1996
Redwood BLVD over Novato Creek	Fair	187.0 ft	9,103	1929
Bridge AVE over San Anselmo Creek	Fair	116.1 ft	9,000	1935
Atherton Avenue over U.s. Highway 101	Fair	233.9 ft	8,760	1974
Seventh ST over Novato Creek	Fair	60.0 ft	7,729	1971
Clay ST / Nave DR over U.s. Highway 101	Fair	294.0 ft	7,310	1964
Alexander AVE over Bunker Road	Fair	32.2 ft	7,201	1937
Alexander Avenue over East Road	Fair	39.0 ft	7,201	1937
Sutro AVE over Novato Creek	Fair	33.1 ft	7,153	1935
Bel Marin Keys Bl over Novato Creek Drain	Fair	40.0 ft	6,838	1960
Doherty DR over Arroyo Holon	Fair	54.8 ft	6,381	2014
Rowland Boulevard over U.s. Highway 101	Fair	1089.9 ft	6,000	1974
Pt Reyes Petlma RD over Nicasio Creek	Fair	102.0 ft	6,000	1937
Main Gate Road over Smart Railroad	Fair	141.4 ft	5,000	1930
Locust AVE over Ayo Corte Madera Del Pre	Fair	24.9 ft	4,500	1934
W37-n101 Connector over Novato Bl-n101 Nwp Rr	Fair	662.1 ft	3,800	1964
Redwood BLVD over Dutton Slough	Fair	30.8 ft	3,641	1968
State Route 1 over Lagunitas Creek Overflow	Fair	33.1 ft	3,500	1929
Sir-francis Drake over San Geronimo Creek	Fair	32.2 ft	3,500	1929
Sir Francis Drake over Whites Hill Trail	Fair	380.2 ft	3,500	2002
Andersen Drive over Mahon Creek	Fair	90.6 ft	3,500	1997
Sir-francis Drake over Lagunitas Creek	Fair	77.8 ft	3,000	1982
Sir-francis Drake over Devils Gulch	Fair	46.9 ft	3,000	1920
Saunders AVE over San Anselmo Creek	Fair	75.1 ft	3,000	1935
State Route 1 over Olema Creek	Fair	54.1 ft	2,900	1928
Point San Rafael R over San Rafael Bay Inlet	Fair	22.3 ft	2,400	1955
Glenwood AVE over Ross Creek	Fair	50.5 ft	2,370	1909
State Route 1 over Ellis Creek	Fair	23.0 ft	2,300	1931
State Route 1 over Tomasini Canyon	Fair	24.9 ft	2,300	1925
State Route 1 over Millerton Gulch	Fair	30.5 ft	2,300	1997
Muir Woods RD over Redwood Creek	Fair	21.7 ft	2,090	1946
Olema-bolinas RD over Pine Gulch Creek	Fair	42.0 ft	2,076	1986
Nicassio Vly RD over Halleck Creek	Fair	34.1 ft	2,000	1931
Sir-francis Drake over Lagunitas Creek	Fair	60.0 ft	2,000	1929
Winship Road over Corte Madera Creek	Fair	90.9 ft	2,000	1909
Nicassio Vly RD over Nicasio Drain No 2	Fair	24.0 ft	1,750	1968
Flamingo RD over Coyote Creek	Fair	71.5 ft	1,705	1964
Alexander AVE over Abandoned Nwp Rr Row	Fair	164.0 ft	1,570	1925
Barber AVE over Corte Madera Creek	Fair	114.5 ft	1,500	1930
Madrone AVE over San Anselmo Creek	Fair	27.9 ft	1,500	1930
Pt Reyes Petlma RD over San Antonio Creek	Fair	102.0 ft	1,450	1964
State Route 1 over Stemple Creek	Fair	210.0 ft	1,100	1982
Mount Lassen DR SB over Miller Creek	Fair	30.2 ft	980	1925
Mount Lassen DR NB over Miller Creek	Fair	78.1 ft	980	1965
Mt Mckinley RD over Miller Creek	Fair	63.0 ft	800	1963
Bunker Road over Rodeo Lagoon	Fair	49.9 ft	600	1983
Mount Shasta DR over Miller Creek	Fair	88.3 ft	500	1962
Bridgegate DR over Miller Creek	Fair	62.0 ft	500	1987
Nokomis AVE over San Anselmo Creek	Fair	115.2 ft	400	1930
Marshall-petaluma over Salmon Creek	Fair	22.0 ft	328	1928
Summit AVE over Hillside	Fair	71.9 ft	257	1980
Spruce RD over Fairfax Creek	Fair	22.0 ft	255	1930
Creek Road over San Anselmo Creek	Fair	136.2 ft	255	1929
San Antonio RD over South San Antonio Creek	Fair	101.0 ft	200	1917
Stinson Beach Road over Easkoot Creek	Fair	33.5 ft	150	1959
Marin DR over Fairfax Creek	Fair	41.0 ft	110	1930
Vly Fd Frnklin Sch over Estero De San Antonio	Fair	242.1 ft	100	1964
Vly-frd-frkln Sch over Estero Americano	Fair	198.2 ft	100	1961
Canyon Road over San Anselmo Creek	Fair	32.8 ft	100	1998
Mountain View AVE over San Geromino Creek	Fair	50.9 ft	100	1962
Enterprise Concrse over Coyote Creek Tributary	Fair	24.0 ft	70	1950
W San Francisco Bl over San Rafael Creek	Fair	49.9 ft	50	1981
Montezuma RD over San Geronimo Creek	Fair	33.1 ft	50	1938
State Park Road over Lagunitas Creek	Fair	120.1 ft	50	1947
Middle RD over Estero De San Antonio	Fair	195.9 ft	40	1958
Horse Creek Camp R over Olema Creek	Fair	84.6 ft	20	1960
Mill Crossing over Lagunitas Creek	Fair	111.9 ft	1	1947
U.s. Highway 101 over Linden Lane	Good	49.9 ft	173,000	1947
U.s. Highway 101 over Ggt Bellam Andersen	Good	1024.0 ft	172,000	1958
U.s. Highway 101 over Wornum Drive	Good	141.1 ft	172,000	1929
U.s. Highway 101 over Nwp Rr / Smart	Good	136.5 ft	167,000	1957
U.s. Highway 101 over Lucas Valley Road	Good	103.0 ft	151,000	1952
U.s. Highway 101 over SR 1 Rich By Frntge RD	Good	2863.8 ft	133,000	1957
U.s. Highway 101 over Irwin Creek	Good	206.7 ft	129,000	1895
U.s. Highway 101 over Rush Creek (s Branch)	Good	28.9 ft	123,000	1974
U.s. Highway 101 over Rush Creek (n Branch)	Good	25.9 ft	123,000	1974
U.s. Highway 101 over Sausalito Road	Good	26.9 ft	106,000	1935
U.s. Highway 101 over Donahue St/n. Bridge Bld	Good	92.5 ft	106,000	1943
U.s. Highway 101 over US 101 On & Off Ramps	Good	40.0 ft	106,000	1954
U.s. Highway 101 over San Antonio Creek	Good	509.8 ft	96,600	2019
Interstate 580 over San Quentin Street	Good	85.0 ft	67,000	1957
State Route 580 over Bellam Boulevard	Good	119.4 ft	67,000	2010
U.s. Highway 101 over Franklin Av & Nwp Rr	Good	384.8 ft	61,500	1974
Route 101 SB over Rush Landing RD & Nwp Rr	Good	444.9 ft	61,500	1974
Route 101 NB over Rush Landing RD & Nwp Rr	Good	444.9 ft	61,500	1974
U.s. Highway 101 over Hillside	Good	317.9 ft	53,000	1954
Sir Fran Drake Blv over State Route 580	Good	672.2 ft	51,000	1957
State Route 37 over Simonds Slough	Good	20.3 ft	34,000	1959
Sir Francis Drake over Corte Madera Creek	Good	63.0 ft	32,300	1926
De Long Avenue over Ncrra (old Nwp Rr)	Good	220.1 ft	30,155	1974
State Route 131 over US Highway 101	Good	222.4 ft	27,250	1956
Ignacio BLVD over Ncrra\nwp Rr	Good	127.0 ft	25,546	1984
101n Offramp 2 ST over San Rafael Creek	Good	123.4 ft	22,800	2022
Sb101-e580 Connect over US Highway 101	Good	1427.2 ft	22,200	2009
2nd ST over Irwin Creek	Good	62.0 ft	20,000	1965
3rd ST over Irwin Creek	Good	23.0 ft	20,000	1968
South Novato BLVD over Warner Creek	Good	47.9 ft	19,460	1992
Redwood HWY over Gallinas Creek	Good	47.9 ft	16,000	1969
S101-e37 & Novato- over U.s. Highway 101	Good	305.1 ft	15,000	1964
N&s101-e37 Connctr over S Novato Bl N101 & Nwprr	Good	727.0 ft	14,500	1964
Pt Ryes Petluma RD over Nicasio Creek	Good	132.9 ft	10,000	1960
Redwood BLVD over Novato Creek	Good	187.0 ft	9,103	1947
Atherton Avenue over Ncrra (old Nwp Rr)	Good	117.1 ft	8,800	1974
Freitas Prky over Gallinas Creek	Good	36.7 ft	8,738	1950
Diablo BLVD over Warner Creek	Good	30.8 ft	7,723	1970
Simmons AVE over Novato Creek	Good	50.9 ft	7,037	1932
Las Galinas Av over Gallinas Creek	Good	22.0 ft	6,871	1965
Grant AVE over Novato Creek	Good	36.1 ft	6,711	1936
Lucas Valley RD over Miller Creek	Good	66.9 ft	6,500	1959
College AVE over Corte Madera Creek	Good	34.1 ft	6,000	1970
State Route 1 over Fallon Creek	Good	62.0 ft	5,900	2001
Lindaro ST over Mahon Creek	Good	25.9 ft	5,735	1962
North Hamilton Pkw over Pacheco Creek	Good	53.1 ft	5,000	2001
Center Road over Vineyard Creek	Good	27.2 ft	5,000	2008
Tamalpais AVE over Warner Creek	Good	36.1 ft	4,458	1973
State Route 1 over Eskoot Creek	Good	24.9 ft	4,100	1957
State Route 1 over Hillside	Good	34.1 ft	4,100	1982
State Route 1 over Hillside	Good	94.2 ft	4,100	1982
Camino Alto over Ayo Corte Madera Del Pre	Good	54.1 ft	4,000	1970
Nicasio Val RD over Arroyo Nicasio	Good	105.0 ft	4,000	1928
Las Gallinas AVE over Miller Creek	Good	53.1 ft	3,830	1970
State Route 1 over Olema Creek Tributary	Good	35.8 ft	3,650	2018
State Route 1 over Giacomini Gulch	Good	40.0 ft	3,650	2018
State Route 1 over Lagunitas Creek Overflow	Good	33.1 ft	3,500	1929
Lagunitas Road over Corte Madera Creek	Good	63.6 ft	3,500	2011
N101-san Pedro RD over North San Pedro Road	Good	167.0 ft	3,300	1970
Meadwood DR over Branch Corte Madera Crk	Good	40.7 ft	3,000	1974
Lucky Drive over Branch Corte Madera Crk	Good	26.9 ft	3,000	1970
Sir Francis Drake over Olema Creek	Good	58.1 ft	3,000	1930
La Goma ST over Ayo Corte Madera Del Pre	Good	25.6 ft	3,000	1950
Rowland Way over Novato Creek	Good	321.9 ft	2,735	1992
Pt Reyes Petlma RD over Arroyo Sausal	Good	33.1 ft	2,590	1933
Wolfback Ridge RD over U.s. Highway 101	Good	314.0 ft	2,512	1954
State Route 1 over Olema Creek	Good	54.1 ft	2,500	1928
Muir Woods RD over Redwood Creek	Good	100.4 ft	2,187	1958
Shady Lane over Ross Creek	Good	43.0 ft	1,800	1909
Nicasio Vly RD over Nicasio Drain #1	Good	23.6 ft	1,750	1968
State Route 1 over Walker Creek	Good	299.9 ft	1,400	1982
State Route 1 over Americano Creek	Good	266.1 ft	1,200	2018
Tomales Petaluma R over Keyes Creek	Good	22.0 ft	1,200	1977
Norwood AVE over Ross Creek	Good	49.9 ft	1,200	1908
S101 On & Off Ramp over U.s. Highway 101	Good	253.3 ft	1,000	2006
Lucas Valley Road over Miller Creek	Good	132.2 ft	1,000	1961
Caleta AVE over Sleepy Hollow Creek	Good	63.0 ft	500	1989
W Castlewood Drive over San Rafael Bay Inlet	Good	25.9 ft	500	1965
Mrshal-petaluma RD over Salmon Creek	Good	139.1 ft	400	1931
Wilson Hill RD over Arroyo Sausal Tributary	Good	26.9 ft	330	1928
Mrshal Petaluma RD over San Antonio Creek	Good	24.9 ft	328	1929
Fallon-two Rock RD over Estero De San Antonio	Good	22.0 ft	249	1932
Chileno Valley RD over Chileno Creek Tributary	Good	42.0 ft	213	1927
Lagunitas RD over San Geronimo Creek	Good	66.3 ft	200	1964
Slaughter House RD over Estero Americano	Good	75.1 ft	125	1990
Meadow Way over San Geronimo Creek	Good	69.9 ft	100	1965
Southern Heights B over Hillside	Good	129.3 ft	100	2021
Twin Bridge RD over Stemple Creek	Good	90.9 ft	80	1958
Pacific Way over Redwood Creek	Good	24.0 ft	75	1956
Alexander RD over Stemple Creek	Good	81.0 ft	60	1962
Thorsson Court over Novato Creek	Good	82.7 ft	50	2000