Home › California › Nevada County › All bridges

Every bridge in Nevada County, California

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

137 inventoried bridges, busiest first

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

Nevada County, California, has 137 bridges in the 2025 National Bridge Inventory: 63 rated good, 55 fair, and 19 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 20 over Idaho-maryland Road	1969	47,000	Fair
State Route 20 over Wolf Creek	1969	47,000	Good
State Route 20 over SR 174 (colfax) Auburn	1970	43,000	Good
State Route 20 over Bank Street	1969	34,500	Good
State Route 20 over Bennett Street	1969	34,500	Fair
Interstate 80 over Bridge Street	2003	34,000	Good
Interstate 80 over Donner Pass Road	1991	34,000	Fair
Interstate 80 over State Route 89	1991	31,000	Good
Dorsey Dr over State Route 20	1969	28,000	Good
Interstate 80 over Fibreboard	2004	28,000	Good
Interstate 80 over Truckee Airport Road	2004	28,000	Good
Interstate 80 over Truckee River	2004	28,000	Fair
Interstate 80 over Truckee River	2004	28,000	Fair
Interstate 80 over Hinton Road	2004	27,500	Good
Interstate 80 over Truckee River	2004	27,500	Fair
Interstate 80 EB over Donner Lake Road	1963	27,000	Fair
Interstate 80 WB over South Yuba River	1962	27,000	Fair
Interstate 80 over Castle Peak Road	2010	27,000	Good
Interstate 80 over Mystic Road	1958	27,000	Fair
Brunswick Road over State Route 20	1969	26,000	Good
State Route 49 over South Wolf Creek	1958	22,000	Good
Gold Flat Road over State Route 20	1967	20,000	Good
State Route 20 over Deer Creek	1967	16,800	Good
State Route 20 over Rex Reservoir Road	1984	16,500	Good
Interstate 80 over Eagle Lakes Road	1964	14,250	Good
Interstate 80 over South Yuba River	1964	14,250	Fair
Interstate 80 EB over State Route 267	2002	14,000	Good
Interstate 80 EB over UP BNSF Amtrak Truckee	1989	14,000	Fair
Interstate 80 EB over UP BNSF Amtrak Truckee R	1989	14,000	Fair
Interstate 80 WB over State Route 267	2002	14,000	Fair
Interstate 80 WB over UP BNSF Amtrak Truckee	1989	14,000	Fair
Interstate 80 WB over UP BNSF Amtrak Truckee R	1988	14,000	Fair
Interstate 80 EB over Truckee River	1959	13,500	Fair
Interstate 80 WB over Truckee River	1959	13,500	Fair
Interstate 80 over Castle Peak Road	2008	13,500	Good
State Route 20 over Squirrel Creek	1975	13,000	Good
State Route 20 over Squirrel Creek	1984	13,000	Good
Interstate 80 WB over Donner Lake Road	1963	12,400	Fair
Interstate 80 WB over South Yuba River	1962	12,400	Poor
S. Auburn Street over State Route 49	1969	12,000	Fair
Bennett St over Wolf Creek	1969	11,992	Good
Interstate 80 over Eagle Lakes Road	1964	11,750	Fair
Pleasant Valley Rd over Squirrel Creek	1966	10,787	Fair
State Route 267 over Glenshire RR Trk River	2003	10,200	Fair
State Route 20 over Mill Street	1969	10,000	Good
State Route 89 over Interstate 80	1995	10,000	Good
State Route 89 over Donner Creek	1959	9,200	Fair
State Route 89 over Donner Creek	1959	9,200	Good
Brockway Road over Truckee River	1993	9,170	Fair
Donner Pass Road over Trout Creek	2006	9,000	Good
Broad St over Deer Creek	1967	8,630	Poor
Sacramento St over State Route 20	1967	8,500	Poor
State Route 20 over Slacks Ravine	2008	8,200	Good
State Route 20 over Slacks Ravine	2008	8,200	Fair
State Route 20 over State Route 49	1969	8,200	Good
State Route 20 over Wolf Creek	1969	8,200	Good
State Route 174 over Wolf Creek	1969	8,000	Fair
Banner Lava Cap Rd over State Route 20	1967	7,500	Good
Washington St over State Route 20	1967	7,500	Good
Broad St over State Route 20	1967	7,000	Fair
West River St over Donner Creek	1959	6,840	Good
Idaho Maryland Rd over Wolf Creek	1977	6,604	Fair
Pleasant Valley Rd over Deer Creek-lake Wildwood	1969	6,469	Good
Wolf Road (CR 10) over Wolf Creek	1968	6,332	Poor
Interstate 80 EB over SR 20 UP RR BNSF Amtrak	1963	5,875	Poor
Interstate 80 WB over SR 20 UP RR BNSF Amtrak	1963	5,875	Poor
Penn Valley Drive over Clear Creek	1931	5,673	Poor
Brighton St over State Route 20	1984	5,500	Good
Glenshire Dr over UP BNSF Amtrak Truckee R	1999	5,060	Good
State Route 20 over Bear River	1950	4,650	Good
State Route 89 over Prosser Creek	1961	4,000	Fair
South Pine Street over Deer Creek	1996	3,980	Good
State Route 49 over South Yuba River	1994	3,850	Fair
Nevada Street over Deer Creek	1938	3,300	Poor
E Jibboom St over Trout Creek	1940	2,600	Fair
Limekiln Road over Wolf Creek	1988	2,281	Poor
Bitney Springs Rd over Deer Creek	1981	2,214	Fair
Fjord Rd over Alder Creek	1970	2,145	Good
South Shore Dr over Summit Creek	1970	2,100	Good
You Bet Road over Greenhorn Creek	1995	2,087	Poor
Comstock Drive over Drainage Ditch	2003	2,000	Fair
State Route 49 over Middle Yuba River	1994	1,650	Good
Dog Bar Road over South Wolf Creek	1998	1,430	Good
Dog Bar Road over Bear River	1935	1,313	Fair
Idaho-maryland-e20 over Idaho-maryland Road	1969	1,200	Good
Garden Bar Road over Little Wolf Creek	1901	1,075	Good
Donner Pass Rd over South Yuba River	1924	1,020	Good
Donner Pass Road over Interstate 80	2001	1,000	Good
Edwin Road over Drainage Ditch	2007	1,000	Good
Henness Road over Drainage Ditch (east)	2006	1,000	Good
Henness Road over Drainage Ditch (west)	2006	1,000	Good
Hope Court over Pinyon Creek	2004	1,000	Fair
Mccourtney Road over Dry Creek	1960	899	Fair
Rail Road Avenue over Wolf Creek	1970	882	Good
South Shore Dr over Lakeview Canyon	1966	800	Fair
Valley Drive over Squirrel Creek	2007	746	Good
Lake Valley Road over Interstate 80	1963	700	Good
Auburn Road over Wolf Creek	2004	671	Fair
Soda Springs Rd over South Yuba River	2021	659	Good
Retrac Way over Wolf Creek	2017	650	Good
Purdon Road over Shady Creek	2018	613	Good
Mooney Flat Road over Deer Creek	1956	606	Fair
Mooney Flat Road over Slacks Ravine	1959	606	Fair
Donner Pass Rd over Donner Summit	1925	552	Fair
Donner Pass Rd over Soda Springs Creek	1924	552	Fair
Pleasant Valley Rd over South Yuba River	1973	529	Fair
Donner Pass Rd over Interstate 80	1962	500	Fair
Old Highway Dr over Summit Creek	1970	500	Fair
Stampede Meadows R over Truckee River	1989	422	Good
Allison Ranch Road over Wolf Creek	1999	265	Good
Washington Rd over South Yuba River	1971	263	Poor
Floriston Way over Truckee River	2010	260	Fair
Eagle Lake Road over South Yuba River	1962	250	Poor
Boca Dam Road over Boca Dam Spillway	1938	185	Good
Wolf Creek Road over South Wolf Creek	1950	146	Fair
Bloomfield Rd over South Yuba River	1904	143	Poor
Maybert Road over Canyon Creek	2017	120	Good
Fdr 18 over Canyon Creek	1939	100	Fair
Garden Bar Road over Little Wolf Creek	2018	100	Good
Mccourtney Road over Rock Creek	2017	100	Good
Rock Creek Rd over Rock Creek	1920	80	Poor
South Ponderosa Wy over State Route 20	1984	75	Fair
Purdon Road over South Yuba River	1895	71	Fair
Hirschdale Rd over Truckee River	1926	70	Poor
Hirschdale Rd over UP RR BNSF Ry & Amtrak	1926	70	Poor
Rector Rd over Rock Creek	1915	62	Poor
Tyler Foote Xing over Middle Yuba River	1958	58	Poor
Eagle Lake Road over South Yuba River	1964	50	Good
Fdr 18 over Bear River	1984	50	Good
Fdr 18 over S. Fk. Yuba	1957	50	Good
Fdr 20-17-04 over S. Yuba Canal	1972	50	Fair
Fdr 36 over Poorman Creek	1957	50	Fair
Fdr 41 over East Fork	1972	50	Fair
Fdr 85 over Rattlesnake Creek	1964	50	Good
Old Hwy 49 over Shady Creek	1921	50	Fair
Graniteville Rd over Poorman Creek	1930	27	Fair
Relief Hill Rd over Humbug Creek	1952	27	Poor

Source: FHWA National Bridge Inventory, 2025.

Nevada County bridge conditions · California bridges by county.

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