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Every bridge in Colusa County, California

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

213 inventoried bridges, busiest first

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

Colusa County, California, has 213 bridges in the 2025 National Bridge Inventory: 101 rated good, 100 fair, and 12 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
Interstate 5 over Brush Creek	1967	35,000	Good
Interstate 5 over Hillgate Road	1957	35,000	Good
Interstate 5 over Cortina Creek Overflow	1946	33,000	Good
Interstate 5 over Farm Land Drain	1968	30,000	Fair
Interstate 5 over South Branch Sand Creek	1967	29,500	Good
Interstate 5 over Petroleum Creek	1967	18,000	Fair
Interstate 5 NB over Stone Corral Creek	1971	17,000	Fair
Interstate 5 NB over Cnfr & Old Hwy 99W	1971	15,000	Good
Interstate 5 NB over Salt Creek	1952	15,000	Fair
Interstate 5 NB over Salt Creek Dr	1967	15,000	Fair
Interstate 5 SB over Salt Creek	1967	15,000	Fair
Interstate 5 SB over Salt Creek Dr	1967	15,000	Fair
Interstate 5 over Cortina Creek	1967	15,000	Fair
Interstate 5 over Cortina Creek	1967	15,000	Good
Interstate 5 over Freshwater Creek	1971	15,000	Fair
Interstate 5 over Freshwater Creek	1971	15,000	Fair
Interstate 5 over North Branch Sand Creek	1967	15,000	Good
Interstate 5 over North Branch Sand Creek	1967	15,000	Good
Interstate 5 over Petroleum Creek	1967	15,000	Fair
Interstate 5 over Salt Creek	1971	15,000	Good
Interstate 5 over Salt Creek	1971	15,000	Good
Interstate 5 NB over Cnfr & Old Hwy 99W	1971	14,000	Fair
Interstate 5 SB over Cnfr & Old Hwy 99W	1971	14,000	Fair
Interstate 5 SB over Funks Creek	1970	13,000	Good
Interstate 5 over Funks Creek	1970	13,000	Good
Interstate 5 SB over Cnfr & Old Hwy 99W	1971	12,500	Good
Interstate 5 SB over Stone Corral Creek	1971	12,500	Good
Interstate 5 over Funk Slough Overflow	1971	12,500	Good
Interstate 5 over Funk Slough Overflow	1971	12,500	Good
Interstate 5 over Hunters Creek	1970	12,500	Good
Interstate 5 over Hunters Creek	1970	12,500	Good
Interstate 5 over Lurline Creek	1971	12,500	Good
Interstate 5 over Lurline Creek	1971	12,500	Good
State Route 20 over Steer Ditch	1923	9,800	Good
State Route 20 over Refuge Drain	1983	7,750	Good
Fifth St (old 99W) over North Branch Sand Creek	1951	6,687	Good
Fifth St (old 99W) over Rosina Draw	1951	6,687	Fair
SR 20 over Powell Slough	1915	6,400	Good
State Route 20 over Colusa Trough	1962	6,400	Fair
State Route 20 over 7TH St Cnfr E Side Cnl	1971	5,800	Good
State Route 20 over Interstate 5	1971	5,800	Fair
State Route 20 over Salt Creek	1959	5,800	Good
State Route 20 over Tehama-colusa Canal	1977	5,800	Good
State Route 20 over Bear Creek	2009	5,400	Fair
Old 99W over Nobo Draw	1946	5,274	Good
Gail Ave (old 99W) over Salt Creek	1967	5,151	Fair
State Route 20 over Bear Creek Tributary	2009	4,950	Good
State Route 20 over Salt Creek	1940	4,950	Fair
Fifth St (old 99W) over Cortina Creek	1967	3,832	Fair
E St over Interstate Route 5	1971	3,700	Good
Fifth St (old 99W) over Salt Creek	1930	3,219	Good
Lone Star Road over Glenn-colusa Canal	1968	2,417	Good
Maxwell Road over Stone Corral Creek	1971	2,306	Fair
Maxwell Road over Colusa Trough	1972	2,282	Good
Lone Star Road over Cortina Creek	1968	2,077	Poor
Hahn Road over Salt Creek	1968	2,071	Good
Old 99W over South Branch Brush Creek	1920	2,018	Fair
Bridge St over Sacramento River	1980	2,006	Fair
Maxwell-colusa Rd over Interstate Route 5	1971	2,000	Fair
Old 99W over Stone Corral Creek	1927	1,976	Poor
Old 99W over Stone Corral Creek Ovfl	1915	1,976	Fair
Old 99W over North Branch Brush Creek	1925	1,958	Fair
Old 99W over Freshwater Creek	1930	1,797	Good
Grimes-arbuckle Rd over Colusa Trough	1971	1,673	Good
Hahn Road over North Branch Sand Creek	1968	1,651	Good
Old 99W over Petroleum Creek	1936	1,616	Fair
Hahn Rd over South Branch Sand Creek	1969	1,541	Fair
Old 99W over Glenn Valley Slough Oflo	1914	1,298	Good
Old 99W over Lurline Creek	1930	1,298	Good
River Road over Colusa Weir	1933	1,224	Fair
Sycamore Cutoff over Irrigation Ditch	1930	1,085	Good
Wildwood Rd over Tehama-colusa Canal	1976	1,018	Good
Hall St over Interstate Route 5	1957	1,000	Good
State Route 45 over High Ditch	1980	1,000	Fair
State Route 45 over Wilkins Slough	1992	1,000	Fair
Hillgate Road over Salt Creek	1965	952	Good
Husted Road over Interstate Route 5	1971	900	Poor
Freshwater Road over Salt Creek	1968	829	Fair
Meyers Road over Interstate Route 5	1967	800	Fair
Hillgate Road over Elk Creek	1972	739	Good
Old 99W over Hunters Creek	1934	669	Fair
Walnut Drive over Glenn-colusa Canal	1940	650	Fair
Hillgate Road over Tehama-colusa Canal	1976	645	Good
Old 99W over Funks Creek	1927	642	Good
Old 99W over Funks Creek Overflow	1915	642	Fair
State Route 16 over Bear Creek	1964	630	Fair
State Route 16 over Bear Creek	1964	630	Fair
Maxwell-sites Rd over Glenn-colusa Canal	1968	613	Fair
Gridley Road over Angel Slough	1973	541	Fair
Wildwood Road over Petroleum Creek	1980	539	Good
Tule Road over Colusa Drain	1958	524	Fair
Hahn Road over Interstate 5	1967	500	Poor
Hillgate Road over Whiskey Creek	1930	484	Fair
Cortina School Rd over Cortina Creek	1970	473	Good
Maxwell-sites Rd over Stone Corral Creek	1957	462	Fair
Maxwell-sites Rd over Stone Corral Creek	1929	459	Fair
Almond Ave over Tehama-colusa Canal	1976	450	Good
Putnum Way over Salt Creek	1967	421	Fair
Walnut Drive over Spring Creek	2010	410	Good
College City Rd over Clarks Ditch	1976	402	Poor
College City Rd over South Fork Brush Creek	1972	402	Fair
College City Road over North Fork Brush Creek	1972	402	Fair
Wagner Ave over Salt Creek	1960	399	Fair
Wagner Ave over Tehama-colusa Canal	1976	399	Good
E Camp Road over Salt Creek	1971	398	Fair
Lodoga-sites Rd over Stone Corral Creek	1991	342	Fair
Lodoga-stonyfrd Rd over Stony Creek	1958	342	Good
Fairview Road over Glenn-colusa Canal	2004	324	Good
Lodoga-stonyfrd Rd over Little Stony Creek	1956	324	Fair
Mcdermott Rd. over Teresa Creek	2010	318	Fair
E Camp Road over Spring Creek	2012	307	Good
Sites-lodoga Road over Howard Creek	1995	303	Fair
Lodoga-stonyfrd Rd over Indian Creek	1976	296	Good
Norman Road over Colusa Drain	2009	289	Good
Sites-lodoga Rd over Grapevine Creek	1971	285	Fair
Sites-lodoga Rd over Squaw Creek	1973	283	Fair
Sites-lodoga Road over Squaw Creek	1998	283	Fair
Sites-lodoga Road over Squaw Creek	1998	283	Good
Norman Road over Willow Creek	1973	282	Fair
Greenbay Road over Tehama-colusa Canal	1976	271	Good
Mcdermott Road over Funks Creek	2006	271	Fair
Mcdermott Rd over Stone Corral Creek	1947	268	Good
Freshwater Road over Freshwater Creek	1968	252	Fair
Evans Road over Cortina Creek	2012	250	Good
Eddy Road over Clarks Ditch	1976	244	Fair
Harrington Ave over Tehama-colusa Canal	1976	243	Good
Fouts Springs Rd over Salt Creek	1970	237	Good
Freshwater Road over Interstate 5	1971	235	Good
Sutton Road over Stone Corral Creek	1975	210	Good
County Line Road over 108 Main Drain (sycamor)	2017	200	Good
Delevan Road over Interstate 5	1970	200	Fair
Greenbay Road over Interstate 5	1967	200	Fair
Harrington Road over Interstate 5	1967	200	Fair
Lenahan Road over Interstate 5	1970	200	Good
Fouts Springs Road over Mill Creek	1997	190	Fair
Danley Road over Glenn Valley Slough	2007	189	Good
Cortina School Rd over Tehama-colusa Canal	1976	185	Good
Walnut Dr over Salt Creek	1970	181	Good
Hankins Road over Glenn-colusa Canal	1930	180	Good
Walnut Dr over Tehama-colusa Canal	1978	178	Good
County Line Rd over Colusa Drain	1970	170	Poor
County Line Rd over Rd 108 10P Canal	1978	170	Poor
Danley Road over Glenn-colusa Canal	1924	161	Fair
Danley Road over Lurline Creek	1974	152	Good
18n03 over South Fork Stony Creek	1975	150	Good
Reddington Ave over Tehama-colusa Canal	1976	135	Good
Evans Rd over Tehama-colusa Canal	1976	134	Good
King Road over Freshwater Creek	1981	127	Fair
Lurline Ave over Colusa Trough	1986	126	Good
Jensen Ave over Tehama-colusa Canal	1976	124	Good
Hahn Road over Tehama-colusa Canal	1976	122	Good
Hankins Road over Spring Creek	1960	118	Poor
Dirks Road over Dirks Creek	1960	114	Fair
Lurline Ave over Lurline Creek	1981	108	Fair
Ohm Rd over Salt Creek	2006	105	Fair
Fairview Road over Interstate Route 5	1971	100	Fair
Lurline Ave over Interstate Route 5	1971	100	Fair
Freshwater Lateral over Salt Creek	2004	85	Good
Abel Road over Colusa Trough	1966	83	Fair
18n03 over Middle Fork Stony Creek	1966	80	Fair
Danley Lateral Rd over Glenn-colusa Canal	2000	77	Good
Two Mile Road over Pamela Creek	1935	76	Fair
Two Mile Road over Stone Corral Creek	1983	76	Fair
San Jose Road over Freshwater Creek	1960	71	Fair
Sycamore Slough Rd over Sycamore Slough	1915	70	Poor
Leesville-lodga Rd over Indian Creek	1930	69	Good
Leesville-lodoga R over Indian Creek	1975	69	Good
Sutton Road over Funks Creek	1964	65	Fair
Wilbur Springs Rd over Bear Creek	2007	63	Good
Cortina Vineyard R over Tehama-colusa Canal	1976	62	Good
Poundstone Road over Rd 108 Main Canal	1930	62	Good
Nonpareil Ave over Tehama-colusa Canal	1976	60	Good
Sycamore Slough Rd over Sycamore Slough	1915	60	Poor
Miller Road over Salt Creek	2003	59	Good
White Road over Rd 108 10P Canal	1970	59	Fair
White Road over Rd 108 10Q Canal	1926	59	Good
King Rd over Tehama-colusa Canal	1978	56	Good
White Road over Colusa Drain	2002	56	Good
White Road over Petroleum Creek	1970	56	Fair
Bagley Road over Glenn-colusa Canal	2003	55	Good
Lenahan Road over Funks Creek	2015	48	Good
San Jose Road over Lurline Creek	1972	46	Fair
La Grande Rd over Glenn-colusa Canal	1940	42	Fair
Bear Valley Road over Bear Creek	1998	41	Good
Gibson Road over Freshwater Creek	2001	41	Fair
Goat Mountain Road over Little Stony Creek	1935	40	Fair
Lenahan Road over Funks Creek	1971	40	Fair
Leesville-lodga Rd over Little Indian Creek	1915	37	Poor
La Grande Rd over Glenn Valley Slough	1971	35	Good
Bear Valley Road over Bear Creek	1960	33	Fair
Gibson Road over Lurline Creek	2001	33	Fair
Four Mile Road over Stone Corral Creek	1988	32	Fair
Four Mile Rd over Logan Creek	1965	31	Fair
Mcdermott Road over Dirks Creek	1960	31	Fair
Delphos Rd over Freshwater Creek	1971	29	Good
Auto Tour Route over Main Drain	1976	25	Fair
Auto Tour Route over Powell Slough	1991	25	Good
Dennis Dr over Salt Creek	1935	23	Poor
Leesville Road over N Br Freshwater Creek	2010	23	Fair
Lurline Rd over Lurline Creek	1930	23	Good
Delphos Road over Lurline Creek	1971	22	Fair
Leesville Road over Freshwater Creek	2000	20	Fair
Wilbur Springs Rd over Sulphur Creek	2001	20	Fair
Four Mile Rd over Hunters Creek	1950	18	Fair
Ohm Road over Glenn-colusa Canal	2004	18	Good
Freshwater Rd over Tehama-colusa Canal	1978	17	Good
Goat Mountain Road over Sullivan Creek	1970	16	Fair
Brim Road over Bear Creek	1920	15	Fair
Clark Avenue over Colusa Drain	1982	15	Fair
Brim Road over Mill Creek	1986	11	Fair
Bagley Rd over Tehama-colusa Canal	1978	10	Good
Finks Road over Glenn-colusa Canal	1930	10	Fair
Standard Rd over Tehama-colusa Canal	1978	10	Good

Source: FHWA National Bridge Inventory, 2025.

Colusa County bridge conditions · California bridges by county.

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