Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-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 — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix - California (FHWA NBI)
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 on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
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
Structurally DeficientOver: 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
IRWINDALE AVE
FairOver: BIG DALTON WASH
0.8MI S/O ARROW HWY, Los Angeles, CA
Built 1959 Load: 38.9 t ADT: 23,745
120TH ST
FairOver: COMPTON CRK
0.1MI E/O CENTRAL AVE, Los Angeles, CA
Built 1953 Load: 38.9 t ADT: 10,435
ROSECRANS AVE
FairOver: COYOTE CRK
100FT W/O BEACH BLVD, Los Angeles, CA
Built 1958 Load: 38.9 t ADT: 21,294
VASQUEZ CYN RD
FairOver: MINT CYN WASH
100FT W/O SIERRA HWY, Los Angeles, CA
Built 1986 Load: 38.9 t ADT: 6,353
FLORENCE AVE
FairOver: ACTA
50FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 38.9 t ADT: 17,092
GARVEY AVE
FairOver: RIO HONDO RIV
0.3MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 2008 Load: 38.9 t ADT: 23,520
JESSEN DR
FairOver: EARLE CYN
0.1MI W/O PALM DR, Los Angeles, CA
Built 2013 Load: 38.9 t ADT: 1,450
AVENUE 9
FairOver: UP RR
EAST OF S.H. 99, Madera, CA
Built 1964 Load: 38.9 t ADT: 498
ELLIS ST
FairOver: M.I.D. CANAL
0.05 MI W RD 26, Madera, CA
Built 1975 Load: 38.9 t ADT: 100
AVENUE 15
FairOver: COTTONWOOD CREEK
3 MI W OF RD 35, Madera, CA
Built 1982 Load: 38.9 t ADT: 578
HARDMAN AVENUE
FairOver: NAPA RIVER OVERFLOW
JUST E OF SILVERADO TRAIL, Napa, CA
Built 1959 Load: 38.9 t ADT: 1,050
INTERSTATE 80 EB
FairOver: SOUTH YUBA RI & S YUBA D
03-PLA-080-67.87, Placer, CA
Built 1959 Load: 38.9 t ADT: 13,500
BECKWRTH-GENESSEE
FairOver: RED CLOVER CREEK
3 MI S OF BIG INDIAN CRRD, Plumas, CA
Built 1962 Load: 38.9 t ADT: 10
CAJALCO ROAD
FairOver: TEMESCAL WASH
0.7 MI. E/O ROUTE 15 FWY, Riverside, CA
Built 1983 Load: 38.9 t ADT: 14,721
INTERSTATE 15 SB
FairOver: CLEGHORN CANYON RD
08-SBD-015-R20.02, San Bernardino, CA
Built 1969 Load: 38.9 t ADT: 92,000
INTERSTATE 40 EB
FairOver: OLD DAD WASH
08-SBD-040-R74.51, San Bernardino, CA
Built 1972 Load: 38.9 t ADT: 16,500
STATE ROUTE 18
FairOver: LOWER BONNIE CANYON
08-SBD-018-R14.78, San Bernardino, CA
Built 1969 Load: 38.9 t ADT: 16,800
STATE ROUTE 58 WB
FairOver: BNSF RY, UP RR, & AMTRAK
08-SBD-058-R33.41-BSW, San Bernardino, CA
Built 1997 Load: 38.9 t ADT: 6,750
VICTORIA ST
FairOver: EAST ETIWANDA CREEK CHAN
0.1 MI E OF I-15, San Bernardino, CA
Built 1976 Load: 38.9 t ADT: 3,592
INTERSTATE 5
FairOver: NCTD,BNSF & AMTRAK,SCRRA
11-SD-005-R63.78-OCN, San Diego, CA
Built 1968 Load: 38.9 t ADT: 65,000
INTERSTATE 5 NB
FairOver: NCTD,BNSF & AMTRAK,SCRRA
11-SD-005-R63.78-OCN, San Diego, CA
Built 1968 Load: 38.9 t ADT: 65,000
STATE ROUTE 87 SB
FairOver: PEDESTRIAN WALKWAY
04-SCL-087-2.71-SJS, Santa Clara, CA
Built 1992 Load: 38.9 t ADT: 55,000
STATE ROUTE 1 SB
FairOver: BUENA VISTA DRIVE
05-SCR-001-R4.07, Santa Cruz, CA
Built 1974 Load: 38.9 t ADT: 15,000
AGER RD
FairOver: BLACK MOUNTAIN GULCH
7.6 MI NORTH SR 3, Siskiyou, CA
Built 1980 Load: 38.9 t ADT: 648
US HIGHWAY 101 NB
FairOver: CITRUS FAIR DRIVE
04-SON-101-R51.62-CLVD, Sonoma, CA
Built 1994 Load: 38.9 t ADT: 6,800
SANTA ROSA AVE
FairOver: SANTA ROSA CREEK
BETWN SONOMA AVE-FIRST ST, Sonoma, CA
Built 1928 Load: 38.9 t ADT: 31,300
VACATION BEACH RD
FairOver: RUSSIAN RIV SUMMER XING
JUST NE OF SR 116, Sonoma, CA
Built 1977 Load: 38.9 t ADT: 600
ODD FELLOWS PARK R
FairOver: RUSSIAN RIV SUMMER XING
REMOVED AT HIGH WATER, Sonoma, CA
Built 1977 Load: 38.9 t ADT: 275
M120
FairOver: DEER CREEK
0.5 MI E OF R 272, Tulare, CA
Built 1967 Load: 38.9 t ADT: 25
M 120
FairOver: DEER CREEK
4.19 MI E RD 272, Tulare, CA
Built 1967 Load: 38.9 t ADT: 25
AVE 288
FairOver: DEEP CREEK
0.1 MI E OF RD 168, Tulare, CA
Built 1951 Load: 38.9 t ADT: 750
STATE ROUTE 150
FairOver: VENTURA RIVER
07-VEN-150-R13.42, Ventura, CA
Built 1972 Load: 38.9 t ADT: 5,500
INTERSTATE 10
FairOver: HARCOURT AVE
07-LA-010-R10.72-LA, Los Angeles, CA
Built 1964 Load: 39.0 t ADT: 273,000
SANTA RITA RD
FairOver: ARROYO MOCHO
0.4 MI S/O TASSAJARA RD, Alameda, CA
Built 1974 Load: 39.2 t ADT: 3,900
TEHAMA AVE
FairOver: RUDY CREEK
0.2 MI E OF 16TH ST, Butte, CA
Built 1966 Load: 39.2 t ADT: 740
STATE ROUTE 24
FairOver: DOLORES DRIVE
04-CC-024-R5.84-LFYT, Contra Costa, CA
Built 1970 Load: 39.2 t ADT: 79,500
S CLOVIS AVE
FairOver: MURPHY SLOUGH
0.3 MI N/O RIVERDALE AVE, Fresno, CA
Built 1988 Load: 39.2 t ADT: 400
ISHI PISHI RD
FairOver: RANGER FLAT DRAW
0.3 MI N JCT SR 96, Humboldt, CA
Built 1950 Load: 39.2 t ADT: 122
I 5
FairOver: SAN FERNANDO MISSION BL
07-LA-005-40.24-LA, Los Angeles, CA
Built 1963 Load: 39.2 t ADT: 156,373
IMPERIAL HWY
FairOver: LOS ANGELES RIV
400FT E/O I-710 FWY, Los Angeles, CA
Built 1951 Load: 39.2 t ADT: 39,417
27TH ST
FairOver: ACTA
0.2MI E/O LONG BEACH AVE, Los Angeles, CA
Built 2000 Load: 39.2 t ADT: 4,947
W SAN FRANCISCO BL
FairOver: SAN RAFAEL CREEK
JUST S/O SECOND ST, Marin, CA
Built 1981 Load: 39.2 t ADT: 50
STATE ROUTE 140
FairOver: EAST SIDE CANAL
10-MER-140-18.52, Merced, CA
Built 1955 Load: 39.2 t ADT: 3,325
DIAMOND MTN RD
FairOver: LIGHTS CREEK
9.4 MI NE BECKWRTH-GRN RD, Plumas, CA
Built 1997 Load: 39.2 t ADT: 80
STATE ROUTE 111
FairOver: GRAPE DITCH
08-RIV-111-9.87, Riverside, CA
Built 1951 Load: 39.2 t ADT: 2,700
HELLMAN AVENUE
FairOver: CUCAMONGA CREEK
0.7 MI. S/O SCHLEISMAN RD, Riverside, CA
Built 1977 Load: 39.2 t ADT: 2,240
OFFRAMP TO AIRPORT
FairOver: BLOSSOM WASH
08-SBD-040-R12.00, San Bernardino, CA
Built 1968 Load: 39.2 t ADT: 450
RAMONA AVE
FairOver: SAN ANTONIO CREEK CHAN
0.1 MI S SAN BERNARDNO ST, San Bernardino, CA
Built 1958 Load: 39.2 t ADT: 2,900
SLO-SAN SIMEON RD
FairOver: HEARST RANCH CREEK
JUST W/O SR 1, San Luis Obispo, CA
Built 1916 Load: 39.2 t ADT: 100
ALPINE RD
FairOver: SAN FRANCISQUITO CREEK
0.3 MI N OF I-280, San Mateo, CA
Built 1950 Load: 39.2 t ADT: 16,957
Showing 15,751-15,800 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.