Total Bridges
27,040
Public highway bridges in California
State profile · Below median Poor share
California bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in California, based on the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
Data updated May 2026
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges whose lowest applicable component is rated 0-4
-2.4pp vs national avg 7.0%
California vs national bridge condition
California - Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California - Poor-condition share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below California on the same metric.
OH
Ohio
4.54% top marginal rate
NJ
New Jersey
4.59% top marginal rate
CA
California
4.60% top marginal rate
AR
Arkansas
4.71% top marginal rate
WA
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
PoorOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
STATE ROUTE 128
GoodOver: CYRUS CREEK
04-NAP-128-3.74, Napa, CA
Built 1993 Load: 32.4 t ADT: 9,800
STATE ROUTE 29 SB
GoodOver: CFNR & PAOLI LOOP ROAD
04-NAP-029-R2.37, Napa, CA
Built 1979 Load: 32.4 t ADT: 22,625
STATE ROUTE 29 NB
GoodOver: CFNR & PAOLI LOOP ROAD
04-NAP-029-R2.37, Napa, CA
Built 1979 Load: 32.4 t ADT: 22,625
ST RTE 29, BYWAY E
GoodOver: CRAIG CREEK
04-NAP-029-14.11-NAP, Napa, CA
Built 1958 Load: 32.4 t ADT: 43,000
STATE ROUTE 29
GoodOver: PERFUME CREEK
04-NAP-029-17.81-YNTV, Napa, CA
Built 1963 Load: 32.4 t ADT: 43,000
STATE ROUTE 121
GoodOver: TULUCAY CREEK
04-NAP-121-R5.71, Napa, CA
Built 1949 Load: 32.4 t ADT: 27,000
SR 29
GoodOver: TO KALON CREEK
04-NAP-029-22.36, Napa, CA
Built 1995 Load: 32.4 t ADT: 28,000
SR 29
GoodOver: BALE SLOUGH
04-NAP-029-25.40, Napa, CA
Built 1995 Load: 32.4 t ADT: 26,000
STATE ROUTE 121
GoodOver: CAPELL CREEK
04-NAP-121-20.29, Napa, CA
Built 2014 Load: 32.4 t ADT: 2,450
STATE ROUTE 29
GoodOver: TROUTDALE CREEK
04-NAP-029-47.20, Napa, CA
Built 2016 Load: 32.4 t ADT: 9,000
STATE ROUTE 29
GoodOver: NAPA RIVER
04-NAP-029-37.03-CSTG, Napa, CA
Built 2019 Load: 32.4 t ADT: 14,000
STATE ROUTE 128
GoodOver: CONN CREEK
04-NAP-128-R7.41, Napa, CA
Built 2020 Load: 32.4 t ADT: 3,300
STATE ROUTE 128
GoodOver: CAPELL CREEK
04-NAP-128-20.23, Napa, CA
Built 2021 Load: 32.4 t ADT: 3,500
STATE ROUTE 121
GoodOver: HUICHICA CREEK
04-NAP-121-0.75, Napa, CA
Built 2022 Load: 32.4 t ADT: 27,300
SILVERADO TRAIL
GoodOver: BELL CANYON CREEK
AT GLASS MTN RD, Napa, CA
Built 1936 Load: 32.4 t ADT: 4,310
THIRD STREET
GoodOver: NAPA RIVER
JUST W SOSCOL AVE, Napa, CA
Built 2002 Load: 32.4 t ADT: 12,050
WOODEN VALLEY RD
GoodOver: WOODEN VALLEY CREEK
3.4 MI S SR 121, Napa, CA
Built 1966 Load: 32.4 t ADT: 500
REDWOOD ROAD
GoodOver: REDWOOD CREEK
AT DRY CREEK ROAD, Napa, CA
Built 1982 Load: 32.4 t ADT: 3,631
BROADWAY
GoodOver: AMERICAN CANYON CREEK
S/O AMERICAN CYN RD, Napa, CA
Built 1973 Load: 32.4 t ADT: 1,500
EVEY RD
GoodOver: NAPA RIVER
0.4 MI N BENNETT LANE, Napa, CA
Built 1980 Load: 32.4 t ADT: 64
VALLEYVIEW ST
GoodOver: SULPHUR CREEK
0.1 MI N GRAYSON AVE, Napa, CA
Built 1981 Load: 32.4 t ADT: 1,000
PETRIFIED FORST RD
GoodOver: CYRUS CREEK
0.5 MI W OF SR 128, Napa, CA
Built 1989 Load: 32.4 t ADT: 9,783
JEFFERSON ST
GoodOver: NAPA DRAIN
JUST NORTH OF TROWER AVE, Napa, CA
Built 1991 Load: 32.4 t ADT: 5,439
FIRST STREET
GoodOver: NAPA RIVER
0.1 MI W OF SR 121, Napa, CA
Built 2009 Load: 32.4 t ADT: 23,200
OAKVILLE CROSSROAD
GoodOver: NAPA RIVER
0.5 MI NE OF SR 29, Napa, CA
Built 2016 Load: 32.4 t ADT: 3,000
GREENWOOD AVE
GoodOver: NAPA RIVER
.2 MI SW/O MYRTLEDALE RD, Napa, CA
Built 2015 Load: 32.4 t ADT: 386
DEVLIN ROAD
GoodOver: FAGAN CREEK
0.1 MI N OF TOWER RD, Napa, CA
Built 2019 Load: 32.4 t ADT: 3,500
BERRY STREET
GoodOver: NAPA RIVER
SE OF WASHINGTON STREET, Napa, CA
Built 2018 Load: 32.4 t ADT: 1,500
MOUNT VEEDER ROAD
GoodOver: PICKLE CREEK
2.1 MILES N OF REDWOOD RD, Napa, CA
Built 2020 Load: 32.4 t ADT: 737
BERRYESSA-KNOXVLLE
GoodOver: ETICUERA CREEK
7.7 MI N/O POPE CYN ROAD, Napa, CA
Built 2020 Load: 32.4 t ADT: 370
GASSER DRIVE
GoodOver: TULOCAY CREEK
NORTH OF KANSAS AVE, Napa, CA
Built 2019 Load: 32.4 t ADT: 1,800
STATE ROUTE 20
GoodOver: BEAR RIVER
03-NEV-020-41.28, Nevada, CA
Built 1950 Load: 32.4 t ADT: 4,650
INTERSTATE 80
GoodOver: BRIDGE STREET
03-NEV-080-15.48, Nevada, CA
Built 2003 Load: 32.4 t ADT: 34,000
INTERSTATE 80
GoodOver: CASTLE PEAK ROAD
03-NEV-080-R5.07L, Nevada, CA
Built 2008 Load: 32.4 t ADT: 13,500
INTERSTATE 80
GoodOver: CASTLE PEAK ROAD
03-NEV-080-R5.07R, Nevada, CA
Built 2010 Load: 32.4 t ADT: 27,000
STATE ROUTE 20
GoodOver: WOLF CREEK
03-NEV-020-R12.20-GVY, Nevada, CA
Built 1969 Load: 32.4 t ADT: 8,200
STATE ROUTE 20
GoodOver: SQUIRREL CREEK
03-NEV-020-R6.55, Nevada, CA
Built 1984 Load: 32.4 t ADT: 13,000
STATE ROUTE 20
GoodOver: REX RESERVOIR ROAD
03-NEV-020-R8.44, Nevada, CA
Built 1984 Load: 32.4 t ADT: 16,500
INTERSTATE 80
GoodOver: FIBREBOARD
03-NEV-080-17.33, Nevada, CA
Built 2004 Load: 32.4 t ADT: 28,000
DOG BAR ROAD
GoodOver: SOUTH WOLF CREEK
0.02 MI N OF MT OLIVE RD, Nevada, CA
Built 1998 Load: 32.4 t ADT: 1,430
GLENSHIRE DR
GoodOver: UP,BNSF,AMTRAK,TRUCKEE R
0.5 MI N TRCKEE AIRPRT RD, Nevada, CA
Built 1999 Load: 32.4 t ADT: 5,060
BENNETT ST
GoodOver: WOLF CREEK
BTWN E MAIN ST & SR 20, Nevada, CA
Built 1969 Load: 32.4 t ADT: 11,992
STAMPEDE MEADOWS R
GoodOver: TRUCKEE RIVER
W/O HIRSCHDALE RD EXIT, Nevada, CA
Built 1989 Load: 32.4 t ADT: 422
VALLEY DRIVE
GoodOver: SQUIRREL CREEK
0.1 MI N ROUGH&READY HWY, Nevada, CA
Built 2007 Load: 32.4 t ADT: 746
PURDON ROAD
GoodOver: SHADY CREEK
0.16 MI S/O TYLER FOOTE, Nevada, CA
Built 2018 Load: 32.4 t ADT: 613
SODA SPRINGS RD
GoodOver: SOUTH YUBA RIVER
NEAR BUNNY HILL ROAD, Nevada, CA
Built 2021 Load: 32.4 t ADT: 659
INTERSTATE 5
GoodOver: ALISO CREEK
12-ORA-005-17.75-LGNH, Orange, CA
Built 1959 Load: 32.4 t ADT: 354,700
INTERSTATE 5
GoodOver: BEE CANYON
12-ORA-005-22.83-IRVN, Orange, CA
Built 1958 Load: 32.4 t ADT: 315,000
INTERSTATE 5
GoodOver: SAN DIEGO CREEK
12-ORA-005-20.49-IRVN, Orange, CA
Built 1958 Load: 32.4 t ADT: 335,000
SR 90 (IMPERIAL)
GoodOver: SANTA ANA RIVER
12-ORA-090-12.59-ANA, Orange, CA
Built 1970 Load: 32.4 t ADT: 45,000
Showing 21,451-21,500 of 27,040 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.