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Every bridge in Napa County, California

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

160 inventoried bridges, busiest first

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

Napa County, California, has 160 bridges in the 2025 National Bridge Inventory: 71 rated good, 81 fair, and 8 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 29 over State Route 221 (soscol)	2024	79,300	Good
State Route 29 over American Canyon Creek	1943	48,000	Fair
State Route 29 over Nvrr Napa River Stanly	1977	48,000	Poor
State Route 29 over Stanley Creek	1981	48,000	Fair
St Rte 29 Byway E over Craig Creek	1958	43,000	Good
State Route 29 over Dry Creek	1970	43,000	Fair
State Route 29 over Perfume Creek	1963	43,000	Good
State Route 29 NB over Napa Creek	1949	33,500	Good
State Route 29 SB over Napa Creek	1964	33,500	Good
State Route 29 SB over Suscol Creek	1981	32,500	Poor
Trancas St-redwood over State Route 29	2003	30,000	Fair
State Route 29 NB over State Rte 121/IMOLA Ave	1961	29,500	Fair
State Route 29 SB over State Rte 121/IMOLA Ave	1961	29,500	Good
SR 29 over to Kalon Creek	1995	28,000	Good
State Route 121 over Carneros Creek	1954	27,500	Fair
State Route 121 over Huichica Creek	2022	27,300	Good
State Route 121 over Tulucay Creek	1949	27,000	Good
SR 29 over Bale Slough	1995	26,000	Good
State Route 29 over California Drive	1959	24,900	Fair
State Route 221 over Basalt Road	1944	24,500	Good
State Route 29 over Sulphur Creek	1910	24,000	Fair
First Street over Napa River	2009	23,200	Good
First Street over State Route 29	1964	23,200	Fair
State Route 121 over Tulucay Creek	1918	22,850	Fair
Soscol Ave over Napa River	1980	22,690	Fair
State Route 29 NB over Cfnr & Paoli Loop Road	1979	22,625	Good
State Route 29 SB over Cfnr & Paoli Loop Road	1979	22,625	Good
State Route 29 NB over Napa Valley Corporate Dr	1981	22,500	Fair
State Route 29 SB over Napa Valley Corporate Dr	1981	22,500	Fair
State Route 29 over York Creek	1902	20,000	Good
Soscol Ave over Napa River Bypass	2004	18,241	Fair
American Canyon Rd over American Canyon Creek	1940	16,278	Good
Lincoln Avenue over Napa River	1956	16,188	Fair
Jefferson Street over Napa Creek	1904	15,691	Good
Trancas St over Napa River	1960	14,755	Fair
State Route 29 over Napa River	2019	14,000	Good
California Blvd over Napa Creek	1990	13,986	Fair
SR 121 EB Imola Av over Napa River	2007	13,500	Fair
SR 121 WB Imola Av over Napa River	2007	13,500	Fair
Third Street over Napa River	2002	12,050	Good
SR 121 over Sarco Creek	2018	12,000	Good
State Route 29 over Garnett Creek	1902	12,000	Poor
State Route 29 over Garnett Creek Branch	1920	12,000	Fair
State Route 128 over Cyrus Creek	1993	9,800	Good
Petrified Forst Rd over Cyrus Creek	1989	9,783	Good
State Route 29 over Troutdale Creek	2016	9,000	Good
Trancas St over Milliken Creek	1973	9,000	Fair
Big Ranch Road over Salvador Overflow	1988	8,768	Fair
Old Sonoma Road over State Route 29	1961	7,260	Fair
Main Street over Napa Creek	1860	5,972	Fair
Silverado Trail over Napa River Overflow	1930	5,450	Good
Silverado Trail over Napa River Overflow	1930	5,450	Good
Silverado Trail over No Name Creek	1930	5,450	Good
Silverado Trail over Rector Creek	1957	5,450	Fair
Jefferson St over Napa Drain	1991	5,439	Good
Lincoln Avenue over State Route 29	1967	5,259	Fair
First Street over Napa CR & River Overflow	2005	5,235	Fair
Silverado Trail over Bell Canyon Creek	1936	4,310	Good
Silverado Trail over Dutch Henry Creek	1938	4,310	Fair
Airport Rd over Fagan Creek	1930	3,991	Good
Wine Country Ave over Napa Drain	1960	3,853	Good
Atlas Peak Road over Milliken Creek	1969	3,745	Fair
Redwood Road over Redwood Creek	1982	3,631	Good
Knoxv-berryessa Rd over Pope Crk.(lake Berryessa	1957	3,570	Poor
Devlin Road over Fagan Creek	2019	3,500	Good
State Route 128 over Capell Creek	2021	3,500	Good
Pearl St over Napa Creek	1920	3,400	Fair
State Route 128 over Conn Creek	2020	3,300	Good
Silverado Trail over Soda Springs Creek	1972	3,211	Good
Deer Park Road over Napa River	1966	3,115	Poor
Oakville Crossroad over Napa River	2016	3,000	Good
Trancas St over Milliken Creek	1908	3,000	Fair
Shurtleff Ave over Tulocay CR (cayetano CR)	1925	2,836	Good
Pope St over Napa River	1894	2,790	Fair
Pope St over Sulphur Creek	1908	2,790	Fair
State Route 128 over Blossom Creek	1901	2,775	Fair
Oak Knoll Ave over Napa River	1922	2,600	Good
Oak Knoll Ave over Napa River Overflow	1930	2,600	Good
Oak Knoll Ave over Napa River Overflow	1910	2,600	Fair
Zinfandel Lane over Napa River	1913	2,600	Fair
Yountville Cross R over Napa River	1985	2,580	Fair
Dry CR Rd over Dry Creek	1920	2,490	Poor
Dry Creek Rd over Dry Creek	1930	2,490	Fair
State Route 121 over Capell Creek	2014	2,450	Good
State Route 128 over Sage Creek	1945	2,125	Fair
Las Amigas Rd over Carneros Creek	1987	2,100	Fair
State Route 128 over Hopper Slough	1921	2,075	Poor
State Route 128 over Napa River	1981	2,075	Fair
Old Sonoma Rd over Carneros Creek	1896	1,959	Fair
West Pueblo Ave over Redwood Creek	1970	1,915	Good
Gasser Drive over Tulocay Creek	2019	1,800	Good
Peatman Dr. over Wetlands	2017	1,800	Good
State Route 128 over Wragg Creek	1955	1,675	Good
Trower Ave over Napa Drain	1970	1,673	Fair
Pope Valley Rd over Duvall Creek	1972	1,658	Fair
Chiles Pope Vly Rd over Chiles Creek	1907	1,600	Fair
Solano Ave over Dry Creek	1970	1,560	Good
Berry Street over Napa River	2018	1,500	Good
Broadway over American Canyon Creek	1973	1,500	Good
Spring Mountain Rd over York Creek	1903	1,500	Fair
Dunaweal Lane over Napa River	1965	1,483	Fair
Seminary St over Napa Creek	1904	1,446	Good
Pope Canyon Rd over Yokel Creek	1989	1,370	Fair
Fourth Ave over Murphy Creek	1994	1,350	Fair
Redwood Road over Redwood Creek	1977	1,221	Fair
Silverado Trail over Simmons Canyon Creek	1978	1,170	Fair
Pratt Avenue over Napa River	1921	1,106	Fair
Hardman Avenue over Napa River Overflow	1959	1,050	Fair
Hedgeside Avenue over Milliken Creek	1925	1,033	Fair
Grant St over Garnett Creek	1918	1,000	Fair
Tall Grass Drive over Browns Valley Creek	2009	1,000	Good
Valleyview St over Sulphur Creek	1981	1,000	Good
Westgate Drive over Milliken Creek	1966	1,000	Fair
Oakville Cross Rd over Conn Creek Overflow	1925	970	Good
Bale Lane over Napa River	1937	813	Fair
Soda Cyn Rd over Soda Creek	1930	787	Fair
Mulberry St over Hopper Creek	1970	785	Good
Chiles Pope Vly Rd over Chiles Creek	1968	750	Fair
Conn Valley Rd over Conn Creek	1920	740	Fair
Mount Veeder Road over Pickle Creek	2020	737	Good
Lodi Lane over Napa River	1930	682	Fair
Redwood Road over Redwood Creek	1989	673	Fair
Myrtledale Rd over Napa River	1930	671	Fair
Duhig Road over Huichicha Creek	1930	582	Good
Villa Lane over Silverado Creek	1999	576	Good
Knoxv-berryessa Rd over Putah Crk(lk Berryessa)	1957	530	Fair
Wooden Valley Rd over Wooden Valley Creek	1966	500	Good
Devlin Road over Soscol Creek	1981	499	Good
Pope Canyon Road over Pope Creek	1986	485	Fair
Larkmead Lane over Dutch Henry Creek	1910	484	Good
Larkmead Lane over Napa River	1926	484	Good
Oakville Cross Rd over Conn Creek	1967	483	Fair
Spring Mountain Rd over Hillside	2009	450	Fair
Greenwood Ave over Napa River	2015	386	Good
Berryessa-knoxvlle over Eticuera Creek	1920	370	Fair
Berryessa-knoxvlle over Eticuera Creek	2020	370	Good
Aetna Springs Rd over Swartz Creek	1912	346	Good
Washington St over Dry Creek	1970	343	Good
Skellenger Lane over Conn Creek	1930	306	Fair
Partrick Road over Browns Valley Creek	2014	300	Good
Skylark Way over Browns Valley Creek	2007	300	Good
Butts Canyon Rd over James Creek	1986	245	Fair
Butts Canyon Rd over Fp Creek	1968	240	Good
Crystal Springs Rd over Bell Creek	1970	209	Fair
Loma Vista Dr over Soda Creek	1953	189	Fair
Barnett Rd over Burton Creek	1930	181	Good
Mt Veeder Rd over Dry Creek	1930	173	Fair
Greenwood Ave over Garnett Creek	1904	162	Poor
Ragatz Lane over Napa River Overflow	1950	161	Fair
Ragatz Lane over Yountville Overflow	1940	161	Fair
Hardin Rd over Maxwell Creek	1909	140	Fair
Capell Cross Rd over Capell Creek	1955	100	Fair
Wooden Vly Cros Rd over Suisun Creek	1930	100	Good
Evey Rd over Napa River	1980	64	Good
Stage Coach Cyn Rd over Butts Creek	1970	41	Fair
Stage Coach Cyn Rd over Butts Creek	1970	41	Good
Cook Road over Napa River	1959	40	Fair
Pope Canyon Road ( over Pope Creek	1969	25	Fair
Devlin Road over Nv RR	2012	1	Fair
Meadowbrook Drive over Browns Valley Creek	2007	1	Good

Source: FHWA National Bridge Inventory, 2025.

Napa County bridge conditions · California bridges by county.

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